From 1055f6868271150e0984845857f43367d57680be Mon Sep 17 00:00:00 2001
From: Matt Condon <mattgcondon@gmail.com>
Date: Sun, 12 Aug 2018 20:19:40 -0700
Subject: [PATCH 01/28] dep: add pouchdb

---
 packages/gnarly-core/package.json |   1 +
 yarn.lock                         | 403 ++++++++++++++++++++++++++++--
 2 files changed, 386 insertions(+), 18 deletions(-)

diff --git a/packages/gnarly-core/package.json b/packages/gnarly-core/package.json
index 9d38fb2..fa6e4c7 100644
--- a/packages/gnarly-core/package.json
+++ b/packages/gnarly-core/package.json
@@ -41,6 +41,7 @@
     "p-queue": "^2.4.2",
     "p-retry": "^2.0.0",
     "pg": "^7.4.1",
+    "pouchdb": "^7.0.0",
     "sequelize": "^4.35.2",
     "uuid": "^3.2.1",
     "web3-eth-abi": "^1.0.0-beta.34",
diff --git a/yarn.lock b/yarn.lock
index 9b40a1f..298fbd1 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -649,6 +649,18 @@ abbrev@1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/abbrev/-/abbrev-1.1.1.tgz#f8f2c887ad10bf67f634f005b6987fed3179aac8"
 
+abstract-leveldown@^4.0.0, abstract-leveldown@~4.0.0:
+  version "4.0.3"
+  resolved "https://registry.yarnpkg.com/abstract-leveldown/-/abstract-leveldown-4.0.3.tgz#cb636f4965fbe117f5c8b76a7d51dd42aaed0580"
+  dependencies:
+    xtend "~4.0.0"
+
+abstract-leveldown@~5.0.0:
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/abstract-leveldown/-/abstract-leveldown-5.0.0.tgz#f7128e1f86ccabf7d2893077ce5d06d798e386c6"
+  dependencies:
+    xtend "~4.0.0"
+
 accepts@~1.3.5:
   version "1.3.5"
   resolved "https://registry.yarnpkg.com/accepts/-/accepts-1.3.5.tgz#eb777df6011723a3b14e8a72c0805c8e86746bd2"
@@ -770,6 +782,10 @@ argparse@^1.0.7:
   dependencies:
     sprintf-js "~1.0.2"
 
+argsarray@0.0.1:
+  version "0.0.1"
+  resolved "https://registry.yarnpkg.com/argsarray/-/argsarray-0.0.1.tgz#6e7207b4ecdb39b0af88303fa5ae22bda8df61cb"
+
 arr-diff@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/arr-diff/-/arr-diff-4.0.0.tgz#d6461074febfec71e7e15235761a329a5dc7c520"
@@ -917,6 +933,17 @@ binary-extensions@^1.0.0:
   version "1.11.0"
   resolved "https://registry.yarnpkg.com/binary-extensions/-/binary-extensions-1.11.0.tgz#46aa1751fb6a2f93ee5e689bb1087d4b14c6c205"
 
+bindings@~1.3.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/bindings/-/bindings-1.3.0.tgz#b346f6ecf6a95f5a815c5839fc7cdb22502f1ed7"
+
+bl@^1.0.0:
+  version "1.2.2"
+  resolved "https://registry.yarnpkg.com/bl/-/bl-1.2.2.tgz#a160911717103c07410cef63ef51b397c025af9c"
+  dependencies:
+    readable-stream "^2.3.5"
+    safe-buffer "^5.1.1"
+
 block-stream@*:
   version "0.0.9"
   resolved "https://registry.yarnpkg.com/block-stream/-/block-stream-0.0.9.tgz#13ebfe778a03205cfe03751481ebb4b3300c126a"
@@ -1020,10 +1047,29 @@ browserify-sha3@^0.0.1:
   dependencies:
     js-sha3 "^0.3.1"
 
+buffer-alloc-unsafe@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/buffer-alloc-unsafe/-/buffer-alloc-unsafe-1.1.0.tgz#bd7dc26ae2972d0eda253be061dba992349c19f0"
+
+buffer-alloc@^1.1.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/buffer-alloc/-/buffer-alloc-1.2.0.tgz#890dd90d923a873e08e10e5fd51a57e5b7cce0ec"
+  dependencies:
+    buffer-alloc-unsafe "^1.1.0"
+    buffer-fill "^1.0.0"
+
 buffer-equal@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/buffer-equal/-/buffer-equal-1.0.0.tgz#59616b498304d556abd466966b22eeda3eca5fbe"
 
+buffer-fill@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/buffer-fill/-/buffer-fill-1.0.0.tgz#f8f78b76789888ef39f205cd637f68e702122b2c"
+
+buffer-from@1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/buffer-from/-/buffer-from-1.1.0.tgz#87fcaa3a298358e0ade6e442cfce840740d1ad04"
+
 buffer-from@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/buffer-from/-/buffer-from-1.0.0.tgz#4cb8832d23612589b0406e9e2956c17f06fdf531"
@@ -1252,7 +1298,7 @@ cliui@^4.0.0:
     strip-ansi "^4.0.0"
     wrap-ansi "^2.0.0"
 
-clone-buffer@^1.0.0:
+clone-buffer@1.0.0, clone-buffer@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/clone-buffer/-/clone-buffer-1.0.0.tgz#e3e25b207ac4e701af721e2cb5a16792cac3dc58"
 
@@ -1691,6 +1737,19 @@ defaults@^1.0.3:
   dependencies:
     clone "^1.0.2"
 
+deferred-leveldown@~3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/deferred-leveldown/-/deferred-leveldown-3.0.0.tgz#bff7241bf156aa3635f520bedf34330c408d3307"
+  dependencies:
+    abstract-leveldown "~4.0.0"
+
+deferred-leveldown@~4.0.0:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/deferred-leveldown/-/deferred-leveldown-4.0.2.tgz#0b0570087827bf480a23494b398f04c128c19a20"
+  dependencies:
+    abstract-leveldown "~5.0.0"
+    inherits "^2.0.3"
+
 define-properties@^1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/define-properties/-/define-properties-1.1.2.tgz#83a73f2fea569898fb737193c8f873caf6d45c94"
@@ -1741,7 +1800,7 @@ detect-indent@^5.0.0:
   version "5.0.0"
   resolved "https://registry.yarnpkg.com/detect-indent/-/detect-indent-5.0.0.tgz#3871cc0a6a002e8c3e5b3cf7f336264675f06b9d"
 
-detect-libc@^1.0.2:
+detect-libc@^1.0.2, detect-libc@^1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/detect-libc/-/detect-libc-1.0.3.tgz#fa137c4bd698edf55cd5cd02ac559f91a4c4ba9b"
 
@@ -1787,6 +1846,10 @@ dottie@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/dottie/-/dottie-2.0.0.tgz#da191981c8b8d713ca0115d5898cf397c2f0ddd0"
 
+double-ended-queue@2.1.0-0:
+  version "2.1.0-0"
+  resolved "https://registry.yarnpkg.com/double-ended-queue/-/double-ended-queue-2.1.0-0.tgz#103d3527fd31528f40188130c841efdd78264e5c"
+
 duplexer3@^0.1.4:
   version "0.1.4"
   resolved "https://registry.yarnpkg.com/duplexer3/-/duplexer3-0.1.4.tgz#ee01dd1cac0ed3cbc7fdbea37dc0a8f1ce002ce2"
@@ -1830,6 +1893,15 @@ encodeurl@~1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/encodeurl/-/encodeurl-1.0.2.tgz#ad3ff4c86ec2d029322f5a02c3a9a606c95b3f59"
 
+encoding-down@~4.0.0:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/encoding-down/-/encoding-down-4.0.1.tgz#15a544eb13d7feeabc9e6f433633d6c966f077c9"
+  dependencies:
+    abstract-leveldown "^4.0.0"
+    level-codec "^8.0.0"
+    level-errors "^1.0.4"
+    xtend "^4.0.1"
+
 encoding@^0.1.11:
   version "0.1.12"
   resolved "https://registry.yarnpkg.com/encoding/-/encoding-0.1.12.tgz#538b66f3ee62cd1ab51ec323829d1f9480c74beb"
@@ -1842,12 +1914,28 @@ end-of-stream@^1.0.0, end-of-stream@^1.1.0:
   dependencies:
     once "^1.4.0"
 
+end-stream@~0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/end-stream/-/end-stream-0.1.0.tgz#32003f3f438a2b0143168137f8fa6e9866c81ed5"
+  dependencies:
+    write-stream "~0.4.3"
+
+errno@~0.1.1:
+  version "0.1.7"
+  resolved "https://registry.yarnpkg.com/errno/-/errno-0.1.7.tgz#4684d71779ad39af177e3f007996f7c67c852618"
+  dependencies:
+    prr "~1.0.1"
+
 error-ex@^1.2.0, error-ex@^1.3.1:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/error-ex/-/error-ex-1.3.1.tgz#f855a86ce61adc4e8621c3cda21e7a7612c3a8dc"
   dependencies:
     is-arrayish "^0.2.1"
 
+es6-denodeify@^0.1.1:
+  version "0.1.5"
+  resolved "https://registry.yarnpkg.com/es6-denodeify/-/es6-denodeify-0.1.5.tgz#31d4d5fe9c5503e125460439310e16a2a3f39c1f"
+
 escape-html@~1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/escape-html/-/escape-html-1.0.3.tgz#0258eae4d3d0c0974de1c169188ef0051d1d1988"
@@ -1966,6 +2054,10 @@ expand-template@1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/expand-template/-/expand-template-1.0.3.tgz#6c303323177a62b1b22c070279f7861287b69b1a"
 
+expand-template@^1.0.2:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/expand-template/-/expand-template-1.1.1.tgz#981f188c0c3a87d2e28f559bc541426ff94f21dd"
+
 express@^4.14.0:
   version "4.16.3"
   resolved "https://registry.yarnpkg.com/express/-/express-4.16.3.tgz#6af8a502350db3246ecc4becf6b5a34d22f7ed53"
@@ -2059,6 +2151,10 @@ fast-equals@^1.5.3:
   version "1.5.3"
   resolved "https://registry.yarnpkg.com/fast-equals/-/fast-equals-1.5.3.tgz#22087aee55a87d440b881445f19424a2f4f4282e"
 
+fast-future@~1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/fast-future/-/fast-future-1.0.2.tgz#8435a9aaa02d79248d17d704e76259301d99280a"
+
 fast-glob@^2.0.2:
   version "2.2.2"
   resolved "https://registry.yarnpkg.com/fast-glob/-/fast-glob-2.2.2.tgz#71723338ac9b4e0e2fff1d6748a2a13d5ed352bf"
@@ -2082,6 +2178,13 @@ fast-stringify@^1.0.3:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/fast-stringify/-/fast-stringify-1.0.4.tgz#7279707663aea3efbed1d9f5da36d7adbeadf5b6"
 
+fetch-cookie@0.7.0:
+  version "0.7.0"
+  resolved "https://registry.yarnpkg.com/fetch-cookie/-/fetch-cookie-0.7.0.tgz#a6fc137ad8363aa89125864c6451b86ecb7de802"
+  dependencies:
+    es6-denodeify "^0.1.1"
+    tough-cookie "^2.3.1"
+
 figures@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/figures/-/figures-2.0.0.tgz#3ab1a2d2a62c8bfb431a0c94cb797a2fce27c962"
@@ -2202,6 +2305,10 @@ from@~0:
   version "0.1.7"
   resolved "https://registry.yarnpkg.com/from/-/from-0.1.7.tgz#83c60afc58b9c56997007ed1a768b3ab303a44fe"
 
+fs-constants@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/fs-constants/-/fs-constants-1.0.0.tgz#6be0de9be998ce16af8afc24497b9ee9b7ccd9ad"
+
 fs-extra@4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/fs-extra/-/fs-extra-4.0.1.tgz#7fc0c6c8957f983f57f306a24e5b9ddd8d0dd880"
@@ -2342,6 +2449,10 @@ gitconfiglocal@^1.0.0:
   dependencies:
     ini "^1.3.2"
 
+github-from-package@0.0.0:
+  version "0.0.0"
+  resolved "https://registry.yarnpkg.com/github-from-package/-/github-from-package-0.0.0.tgz#97fb5d96bfde8973313f20e8288ef9a167fa64ce"
+
 glob-parent@^3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/glob-parent/-/glob-parent-3.1.0.tgz#9e6af6299d8d3bd2bd40430832bd113df906c5ae"
@@ -2655,6 +2766,10 @@ ignore@^3.3.5:
   version "3.3.10"
   resolved "https://registry.yarnpkg.com/ignore/-/ignore-3.3.10.tgz#0a97fb876986e8081c631160f8f9f389157f0043"
 
+immediate@3.0.6:
+  version "3.0.6"
+  resolved "https://registry.yarnpkg.com/immediate/-/immediate-3.0.6.tgz#9db1dbd0faf8de6fbe0f5dd5e56bb606280de69b"
+
 immutable@3.8.2:
   version "3.8.2"
   resolved "https://registry.yarnpkg.com/immutable/-/immutable-3.8.2.tgz#c2439951455bb39913daf281376f1530e104adf3"
@@ -2699,7 +2814,7 @@ inflight@^1.0.4:
     once "^1.3.0"
     wrappy "1"
 
-inherits@2, inherits@2.0.3, inherits@^2.0.1, inherits@^2.0.3, inherits@~2.0.0, inherits@~2.0.3:
+inherits@2, inherits@2.0.3, inherits@^2.0.1, inherits@^2.0.3, inherits@~2.0.0, inherits@~2.0.1, inherits@~2.0.3:
   version "2.0.3"
   resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.3.tgz#633c2c83e3da42a502f52466022480f4208261de"
 
@@ -2988,6 +3103,10 @@ is-windows@^1.0.1, is-windows@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/is-windows/-/is-windows-1.0.2.tgz#d1850eb9791ecd18e6182ce12a30f396634bb19d"
 
+isarray@0.0.1:
+  version "0.0.1"
+  resolved "https://registry.yarnpkg.com/isarray/-/isarray-0.0.1.tgz#8a18acfca9a8f4177e09abfc6038939b05d1eedf"
+
 isarray@1.0.0, isarray@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/isarray/-/isarray-1.0.0.tgz#bb935d48582cba168c06834957a54a3e07124f11"
@@ -3228,6 +3347,93 @@ lerna@^3.0.3:
     import-local "^1.0.0"
     npmlog "^4.1.2"
 
+level-codec@7.0.1:
+  version "7.0.1"
+  resolved "https://registry.yarnpkg.com/level-codec/-/level-codec-7.0.1.tgz#341f22f907ce0f16763f24bddd681e395a0fb8a7"
+
+level-codec@^8.0.0:
+  version "8.0.0"
+  resolved "https://registry.yarnpkg.com/level-codec/-/level-codec-8.0.0.tgz#3a4a0de06dae20c2f5a57b3372c7651e67083e03"
+
+level-errors@^1.0.4, level-errors@~1.1.0:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/level-errors/-/level-errors-1.1.2.tgz#4399c2f3d3ab87d0625f7e3676e2d807deff404d"
+  dependencies:
+    errno "~0.1.1"
+
+level-errors@~2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/level-errors/-/level-errors-2.0.0.tgz#2de5b566b62eef92f99e19be74397fbc512563fa"
+  dependencies:
+    errno "~0.1.1"
+
+level-iterator-stream@~2.0.0:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/level-iterator-stream/-/level-iterator-stream-2.0.3.tgz#ccfff7c046dcf47955ae9a86f46dfa06a31688b4"
+  dependencies:
+    inherits "^2.0.1"
+    readable-stream "^2.0.5"
+    xtend "^4.0.0"
+
+level-packager@^2.0.2:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/level-packager/-/level-packager-2.1.1.tgz#10b653decb67b0a09c4e961ae84f196edaad205a"
+  dependencies:
+    encoding-down "~4.0.0"
+    levelup "^2.0.0"
+
+level-write-stream@1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/level-write-stream/-/level-write-stream-1.0.0.tgz#3f7fbb679a55137c0feb303dee766e12ee13c1dc"
+  dependencies:
+    end-stream "~0.1.0"
+
+level@3.0.2:
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/level/-/level-3.0.2.tgz#83c3d6e48c9e89abc4b6f5ca1c591f177ea2bd59"
+  dependencies:
+    level-packager "^2.0.2"
+    leveldown "^3.0.0"
+    opencollective-postinstall "^2.0.0"
+
+leveldown@3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/leveldown/-/leveldown-3.0.0.tgz#a42ef5d4029f88ba538ed8da3e6c34c5b008ddd7"
+  dependencies:
+    abstract-leveldown "~4.0.0"
+    bindings "~1.3.0"
+    fast-future "~1.0.2"
+    nan "~2.8.0"
+    prebuild-install "^2.1.0"
+
+leveldown@^3.0.0:
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/leveldown/-/leveldown-3.0.2.tgz#d1fb708991c54c874ca1b0688644a25d926e6302"
+  dependencies:
+    abstract-leveldown "~4.0.0"
+    bindings "~1.3.0"
+    fast-future "~1.0.2"
+    nan "~2.10.0"
+    prebuild-install "^4.0.0"
+
+levelup@3.0.1:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/levelup/-/levelup-3.0.1.tgz#07794639fd0af185089130aaea09d03023637b8d"
+  dependencies:
+    deferred-leveldown "~4.0.0"
+    level-errors "~2.0.0"
+    level-iterator-stream "~2.0.0"
+    xtend "~4.0.0"
+
+levelup@^2.0.0:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/levelup/-/levelup-2.0.2.tgz#83dd22ffd5ee14482143c37cddfb8457854d3727"
+  dependencies:
+    deferred-leveldown "~3.0.0"
+    level-errors "~1.1.0"
+    level-iterator-stream "~2.0.0"
+    xtend "~4.0.0"
+
 levn@~0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/levn/-/levn-0.3.0.tgz#3b09924edf9f083c0490fdd4c0bc4421e04764ee"
@@ -3329,6 +3535,10 @@ lru-cache@^4.0.1:
     pseudomap "^1.0.2"
     yallist "^2.1.2"
 
+ltgt@2.2.1:
+  version "2.2.1"
+  resolved "https://registry.yarnpkg.com/ltgt/-/ltgt-2.2.1.tgz#f35ca91c493f7b73da0e07495304f17b31f87ee5"
+
 make-dir@^1.0.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/make-dir/-/make-dir-1.2.0.tgz#6d6a49eead4aae296c53bbf3a1a008bd6c89469b"
@@ -3629,10 +3839,14 @@ mute-stream@0.0.7, mute-stream@~0.0.4:
   version "0.0.7"
   resolved "https://registry.yarnpkg.com/mute-stream/-/mute-stream-0.0.7.tgz#3075ce93bc21b8fab43e1bc4da7e8115ed1e7bab"
 
-nan@2.10.0, nan@^2.9.2:
+nan@2.10.0, nan@^2.9.2, nan@~2.10.0:
   version "2.10.0"
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.10.0.tgz#96d0cd610ebd58d4b4de9cc0c6828cda99c7548f"
 
+nan@~2.8.0:
+  version "2.8.0"
+  resolved "https://registry.yarnpkg.com/nan/-/nan-2.8.0.tgz#ed715f3fe9de02b57a5e6252d90a96675e1f085a"
+
 nano-json-stream-parser@^0.1.2:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/nano-json-stream-parser/-/nano-json-stream-parser-0.1.2.tgz#0cc8f6d0e2b622b479c40d499c46d64b755c6f5f"
@@ -3670,6 +3884,12 @@ nice-try@^1.0.4:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/nice-try/-/nice-try-1.0.4.tgz#d93962f6c52f2c1558c0fbda6d512819f1efe1c4"
 
+node-abi@^2.2.0:
+  version "2.4.3"
+  resolved "https://registry.yarnpkg.com/node-abi/-/node-abi-2.4.3.tgz#43666b7b17e57863e572409edbb82115ac7af28b"
+  dependencies:
+    semver "^5.4.1"
+
 node-fetch@^1.0.1:
   version "1.7.3"
   resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-1.7.3.tgz#980f6f72d85211a5347c6b2bc18c5b84c3eb47ef"
@@ -3677,6 +3897,10 @@ node-fetch@^1.0.1:
     encoding "^0.1.11"
     is-stream "^1.0.1"
 
+node-fetch@^2.0.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-2.2.0.tgz#4ee79bde909262f9775f731e3656d0db55ced5b5"
+
 node-gyp@^3.6.2:
   version "3.8.0"
   resolved "https://registry.yarnpkg.com/node-gyp/-/node-gyp-3.8.0.tgz#540304261c330e80d0d5edce253a68cb3964218c"
@@ -3724,6 +3948,10 @@ nodemon@^1.14.12:
     undefsafe "^2.0.2"
     update-notifier "^2.3.0"
 
+noop-logger@^0.1.1:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/noop-logger/-/noop-logger-0.1.1.tgz#94a2b1633c4f1317553007d8966fd0e841b6a4c2"
+
 "nopt@2 || 3":
   version "3.0.6"
   resolved "https://registry.yarnpkg.com/nopt/-/nopt-3.0.6.tgz#c6465dbf08abcd4db359317f79ac68a646b28ff9"
@@ -3803,7 +4031,7 @@ npm-run-path@^2.0.0:
   dependencies:
     path-key "^2.0.0"
 
-"npmlog@0 || 1 || 2 || 3 || 4", npmlog@^4.0.2, npmlog@^4.1.2:
+"npmlog@0 || 1 || 2 || 3 || 4", npmlog@^4.0.1, npmlog@^4.0.2, npmlog@^4.1.2:
   version "4.1.2"
   resolved "https://registry.yarnpkg.com/npmlog/-/npmlog-4.1.2.tgz#08a7f2a8bf734604779a9efa4ad5cc717abb954b"
   dependencies:
@@ -3918,6 +4146,10 @@ onetime@^2.0.0:
   dependencies:
     mimic-fn "^1.0.0"
 
+opencollective-postinstall@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/opencollective-postinstall/-/opencollective-postinstall-2.0.0.tgz#5fe062f2706bb84150f7fb1af9f1277e46ec1388"
+
 optimist@^0.6.1:
   version "0.6.1"
   resolved "https://registry.yarnpkg.com/optimist/-/optimist-0.6.1.tgz#da3ea74686fa21a19a111c326e90eb15a0196686"
@@ -4265,6 +4497,70 @@ postgres-interval@^1.1.0:
   dependencies:
     xtend "^4.0.0"
 
+pouchdb@^7.0.0:
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/pouchdb/-/pouchdb-7.0.0.tgz#e95df9ef87127d0ea90222d073794bcb47c38648"
+  dependencies:
+    argsarray "0.0.1"
+    buffer-from "1.1.0"
+    clone-buffer "1.0.0"
+    double-ended-queue "2.1.0-0"
+    fetch-cookie "0.7.0"
+    immediate "3.0.6"
+    inherits "2.0.3"
+    level "3.0.2"
+    level-codec "7.0.1"
+    level-write-stream "1.0.0"
+    leveldown "3.0.0"
+    levelup "3.0.1"
+    ltgt "2.2.1"
+    node-fetch "^2.0.0"
+    readable-stream "1.0.33"
+    spark-md5 "3.0.0"
+    through2 "2.0.3"
+    uuid "3.2.1"
+    vuvuzela "1.0.3"
+
+prebuild-install@^2.1.0:
+  version "2.5.3"
+  resolved "https://registry.yarnpkg.com/prebuild-install/-/prebuild-install-2.5.3.tgz#9f65f242782d370296353710e9bc843490c19f69"
+  dependencies:
+    detect-libc "^1.0.3"
+    expand-template "^1.0.2"
+    github-from-package "0.0.0"
+    minimist "^1.2.0"
+    mkdirp "^0.5.1"
+    node-abi "^2.2.0"
+    noop-logger "^0.1.1"
+    npmlog "^4.0.1"
+    os-homedir "^1.0.1"
+    pump "^2.0.1"
+    rc "^1.1.6"
+    simple-get "^2.7.0"
+    tar-fs "^1.13.0"
+    tunnel-agent "^0.6.0"
+    which-pm-runs "^1.0.0"
+
+prebuild-install@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/prebuild-install/-/prebuild-install-4.0.0.tgz#206ce8106ce5efa4b6cf062fc8a0a7d93c17f3a8"
+  dependencies:
+    detect-libc "^1.0.3"
+    expand-template "^1.0.2"
+    github-from-package "0.0.0"
+    minimist "^1.2.0"
+    mkdirp "^0.5.1"
+    node-abi "^2.2.0"
+    noop-logger "^0.1.1"
+    npmlog "^4.0.1"
+    os-homedir "^1.0.1"
+    pump "^2.0.1"
+    rc "^1.1.6"
+    simple-get "^2.7.0"
+    tar-fs "^1.13.0"
+    tunnel-agent "^0.6.0"
+    which-pm-runs "^1.0.0"
+
 prelude-ls@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/prelude-ls/-/prelude-ls-1.1.2.tgz#21932a549f5e52ffd9a827f570e04be62a97da54"
@@ -4302,6 +4598,10 @@ proxy-addr@~2.0.3:
     forwarded "~0.1.2"
     ipaddr.js "1.6.0"
 
+prr@~1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/prr/-/prr-1.0.1.tgz#d3fc114ba06995a45ec6893f484ceb1d78f5f476"
+
 ps-tree@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/ps-tree/-/ps-tree-1.1.0.tgz#b421b24140d6203f1ed3c76996b4427b08e8c014"
@@ -4322,7 +4622,14 @@ pstree.remy@^1.1.0:
   dependencies:
     ps-tree "^1.1.0"
 
-pump@^2.0.0:
+pump@^1.0.0:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/pump/-/pump-1.0.3.tgz#5dfe8311c33bbf6fc18261f9f34702c47c08a954"
+  dependencies:
+    end-of-stream "^1.1.0"
+    once "^1.3.1"
+
+pump@^2.0.0, pump@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/pump/-/pump-2.0.1.tgz#12399add6e4cf7526d973cbc8b5ce2e2908b3909"
   dependencies:
@@ -4458,7 +4765,16 @@ read@1, read@~1.0.1:
   dependencies:
     mute-stream "~0.0.4"
 
-readable-stream@^2.0.0, readable-stream@^2.0.1, readable-stream@^2.0.2, readable-stream@^2.0.4, readable-stream@^2.0.5, readable-stream@^2.0.6, readable-stream@^2.1.4, readable-stream@^2.1.5, readable-stream@^2.2.2, readable-stream@^2.3.3, readable-stream@^2.3.5:
+readable-stream@1.0.33:
+  version "1.0.33"
+  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-1.0.33.tgz#3a360dd66c1b1d7fd4705389860eda1d0f61126c"
+  dependencies:
+    core-util-is "~1.0.0"
+    inherits "~2.0.1"
+    isarray "0.0.1"
+    string_decoder "~0.10.x"
+
+readable-stream@^2.0.0, readable-stream@^2.0.1, readable-stream@^2.0.2, readable-stream@^2.0.4, readable-stream@^2.0.5, readable-stream@^2.0.6, readable-stream@^2.1.4, readable-stream@^2.1.5, readable-stream@^2.2.2, readable-stream@^2.3.0, readable-stream@^2.3.3, readable-stream@^2.3.5:
   version "2.3.6"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.3.6.tgz#b11c27d88b8ff1fbe070643cf94b0c79ae1b0aaf"
   dependencies:
@@ -4470,6 +4786,10 @@ readable-stream@^2.0.0, readable-stream@^2.0.1, readable-stream@^2.0.2, readable
     string_decoder "~1.1.1"
     util-deprecate "~1.0.1"
 
+readable-stream@~0.0.2:
+  version "0.0.4"
+  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-0.0.4.tgz#f32d76e3fb863344a548d79923007173665b3b8d"
+
 readdir-scoped-modules@^1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/readdir-scoped-modules/-/readdir-scoped-modules-1.0.2.tgz#9fafa37d286be5d92cbaebdee030dc9b5f406747"
@@ -4803,7 +5123,7 @@ semver-diff@^2.0.0:
   dependencies:
     semver "^5.0.3"
 
-"semver@2 || 3 || 4 || 5", "semver@2.x || 3.x || 4 || 5", semver@^5.0.3, semver@^5.1.0, semver@^5.3.0, semver@^5.5.0:
+"semver@2 || 3 || 4 || 5", "semver@2.x || 3.x || 4 || 5", semver@^5.0.3, semver@^5.1.0, semver@^5.3.0, semver@^5.4.1, semver@^5.5.0:
   version "5.5.0"
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.5.0.tgz#dc4bbc7a6ca9d916dee5d43516f0092b58f7b8ab"
 
@@ -5052,6 +5372,10 @@ source-map@~0.2.0:
   dependencies:
     amdefine ">=0.0.4"
 
+spark-md5@3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/spark-md5/-/spark-md5-3.0.0.tgz#3722227c54e2faf24b1dc6d933cc144e6f71bfef"
+
 spawn-command@^0.0.2-1:
   version "0.0.2-1"
   resolved "https://registry.yarnpkg.com/spawn-command/-/spawn-command-0.0.2-1.tgz#62f5e9466981c1b796dc5929937e11c9c6921bd0"
@@ -5181,6 +5505,10 @@ string-width@^2.0.0, string-width@^2.1.0, string-width@^2.1.1:
     is-fullwidth-code-point "^2.0.0"
     strip-ansi "^4.0.0"
 
+string_decoder@~0.10.x:
+  version "0.10.31"
+  resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-0.10.31.tgz#62e203bc41766c6c28c9fc84301dab1c5310fa94"
+
 string_decoder@~1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-1.1.1.tgz#9cf1611ba62685d7030ae9e4ba34149c3af03fc8"
@@ -5289,6 +5617,27 @@ symbol-observable@1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/symbol-observable/-/symbol-observable-1.0.1.tgz#8340fc4702c3122df5d22288f88283f513d3fdd4"
 
+tar-fs@^1.13.0:
+  version "1.16.3"
+  resolved "https://registry.yarnpkg.com/tar-fs/-/tar-fs-1.16.3.tgz#966a628841da2c4010406a82167cbd5e0c72d509"
+  dependencies:
+    chownr "^1.0.1"
+    mkdirp "^0.5.1"
+    pump "^1.0.0"
+    tar-stream "^1.1.2"
+
+tar-stream@^1.1.2:
+  version "1.6.1"
+  resolved "https://registry.yarnpkg.com/tar-stream/-/tar-stream-1.6.1.tgz#f84ef1696269d6223ca48f6e1eeede3f7e81f395"
+  dependencies:
+    bl "^1.0.0"
+    buffer-alloc "^1.1.0"
+    end-of-stream "^1.0.0"
+    fs-constants "^1.0.0"
+    readable-stream "^2.3.0"
+    to-buffer "^1.1.0"
+    xtend "^4.0.0"
+
 tar@^2.0.0:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/tar/-/tar-2.2.1.tgz#8e4d2a256c0e2185c6b18ad694aec968b83cb1d1"
@@ -5367,7 +5716,7 @@ through2-filter@^2.0.0:
     through2 "~2.0.0"
     xtend "~4.0.0"
 
-through2@^2.0.0, through2@^2.0.2, through2@^2.0.3, through2@~2.0.0:
+through2@2.0.3, through2@^2.0.0, through2@^2.0.2, through2@^2.0.3, through2@~2.0.0:
   version "2.0.3"
   resolved "https://registry.yarnpkg.com/through2/-/through2-2.0.3.tgz#0004569b37c7c74ba39c43f3ced78d1ad94140be"
   dependencies:
@@ -5395,6 +5744,10 @@ to-absolute-glob@^2.0.0:
     is-absolute "^1.0.0"
     is-negated-glob "^1.0.0"
 
+to-buffer@^1.1.0:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/to-buffer/-/to-buffer-1.1.1.tgz#493bd48f62d7c43fcded313a03dcadb2e1213a80"
+
 to-fast-properties@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/to-fast-properties/-/to-fast-properties-2.0.0.tgz#dc5e698cbd079265bc73e0377681a4e4e83f616e"
@@ -5437,19 +5790,19 @@ touch@^3.1.0:
   dependencies:
     nopt "~1.0.10"
 
-tough-cookie@~2.3.0, tough-cookie@~2.3.3:
-  version "2.3.4"
-  resolved "https://registry.yarnpkg.com/tough-cookie/-/tough-cookie-2.3.4.tgz#ec60cee38ac675063ffc97a5c18970578ee83655"
-  dependencies:
-    punycode "^1.4.1"
-
-tough-cookie@~2.4.3:
+tough-cookie@^2.3.1, tough-cookie@~2.4.3:
   version "2.4.3"
   resolved "https://registry.yarnpkg.com/tough-cookie/-/tough-cookie-2.4.3.tgz#53f36da3f47783b0925afa06ff9f3b165280f781"
   dependencies:
     psl "^1.1.24"
     punycode "^1.4.1"
 
+tough-cookie@~2.3.0, tough-cookie@~2.3.3:
+  version "2.3.4"
+  resolved "https://registry.yarnpkg.com/tough-cookie/-/tough-cookie-2.3.4.tgz#ec60cee38ac675063ffc97a5c18970578ee83655"
+  dependencies:
+    punycode "^1.4.1"
+
 tree-kill@^1.1.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/tree-kill/-/tree-kill-1.2.0.tgz#5846786237b4239014f05db156b643212d4c6f36"
@@ -5696,7 +6049,7 @@ uuid@3.0.1:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/uuid/-/uuid-3.0.1.tgz#6544bba2dfda8c1cf17e629a3a305e2bb1fee6c1"
 
-uuid@^3.0.0, uuid@^3.0.1, uuid@^3.1.0, uuid@^3.2.1:
+uuid@3.2.1, uuid@^3.0.0, uuid@^3.0.1, uuid@^3.1.0, uuid@^3.2.1:
   version "3.2.1"
   resolved "https://registry.yarnpkg.com/uuid/-/uuid-3.2.1.tgz#12c528bb9d58d0b9265d9a2f6f0fe8be17ff1f14"
 
@@ -5789,6 +6142,10 @@ vinyl@^2.0.0, vinyl@^2.1.0:
     remove-trailing-separator "^1.0.1"
     replace-ext "^1.0.0"
 
+vuvuzela@1.0.3:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/vuvuzela/-/vuvuzela-1.0.3.tgz#3be145e58271c73ca55279dd851f12a682114b0b"
+
 wcwidth@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/wcwidth/-/wcwidth-1.0.1.tgz#f0b0dcf915bc5ff1528afadb2c0e17b532da2fe8"
@@ -5839,6 +6196,10 @@ which-module@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/which-module/-/which-module-2.0.0.tgz#d9ef07dce77b9902b8a3a8fa4b31c3e3f7e6e87a"
 
+which-pm-runs@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/which-pm-runs/-/which-pm-runs-1.0.0.tgz#670b3afbc552e0b55df6b7780ca74615f23ad1cb"
+
 which@1, which@^1.3.0:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/which/-/which-1.3.1.tgz#a45043d54f5805316da8d62f9f50918d3da70b0a"
@@ -5930,6 +6291,12 @@ write-pkg@^3.1.0:
     sort-keys "^2.0.0"
     write-json-file "^2.2.0"
 
+write-stream@~0.4.3:
+  version "0.4.3"
+  resolved "https://registry.yarnpkg.com/write-stream/-/write-stream-0.4.3.tgz#83cc8c0347d0af6057a93862b4e3ae01de5c81c1"
+  dependencies:
+    readable-stream "~0.0.2"
+
 ws@^3.0.0:
   version "3.3.3"
   resolved "https://registry.yarnpkg.com/ws/-/ws-3.3.3.tgz#f1cf84fe2d5e901ebce94efaece785f187a228f2"
@@ -5973,7 +6340,7 @@ xregexp@4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/xregexp/-/xregexp-4.0.0.tgz#e698189de49dd2a18cc5687b05e17c8e43943020"
 
-xtend@^4.0.0, xtend@~4.0.0, xtend@~4.0.1:
+xtend@^4.0.0, xtend@^4.0.1, xtend@~4.0.0, xtend@~4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/xtend/-/xtend-4.0.1.tgz#a5c6d532be656e23db820efb943a1f04998d63af"
 

From 63c3c65086ca212940b1346c2b115b2f6362dc79 Mon Sep 17 00:00:00 2001
From: Matt Condon <mattgcondon@gmail.com>
Date: Sun, 12 Aug 2018 22:14:54 -0700
Subject: [PATCH 02/28] checkpoint: beginnings of pouchdb persist interface

---
 packages/gnarly-core/package.json            |   5 +
 packages/gnarly-core/src/stores/pouchdb.ts   | 132 ++++++++++
 packages/gnarly-core/src/stores/sequelize.ts |   4 +-
 yarn.lock                                    | 240 ++++++++++++++++++-
 4 files changed, 377 insertions(+), 4 deletions(-)
 create mode 100644 packages/gnarly-core/src/stores/pouchdb.ts

diff --git a/packages/gnarly-core/package.json b/packages/gnarly-core/package.json
index fa6e4c7..bc0bdcb 100644
--- a/packages/gnarly-core/package.json
+++ b/packages/gnarly-core/package.json
@@ -42,6 +42,8 @@
     "p-retry": "^2.0.0",
     "pg": "^7.4.1",
     "pouchdb": "^7.0.0",
+    "pouchdb-find": "^7.0.0",
+    "pouchdb-upsert": "^2.2.0",
     "sequelize": "^4.35.2",
     "uuid": "^3.2.1",
     "web3-eth-abi": "^1.0.0-beta.34",
@@ -53,6 +55,9 @@
     "@types/lodash.identity": "^3.0.3",
     "@types/lodash.isplainobject": "^4.0.3",
     "@types/node": "^10.5.7",
+    "@types/pouchdb": "^6.3.2",
+    "@types/pouchdb-find": "^6.3.3",
+    "@types/pouchdb-upsert": "^2.2.3",
     "bn-chai": "^1.0.1",
     "chai": "^4.1.2",
     "chai-spies": "^1.0.0",
diff --git a/packages/gnarly-core/src/stores/pouchdb.ts b/packages/gnarly-core/src/stores/pouchdb.ts
new file mode 100644
index 0000000..78c8548
--- /dev/null
+++ b/packages/gnarly-core/src/stores/pouchdb.ts
@@ -0,0 +1,132 @@
+import PouchDB = require('pouchdb')
+PouchDB.plugin(require('pouchdb-upsert'))
+PouchDB.plugin(require('pouchdb-find'))
+
+import { IJSONBlock } from '../models/Block'
+import {
+  ITransaction,
+} from '../ourbit/types'
+import { IPersistInterface } from '../stores'
+import { toBN } from '../utils'
+
+const sortByHexProp = (prop: string) => (a, b) => toBN(a[prop]).sub(toBN(b[prop])).toNumber()
+const toJSONBlock = (block) => block as IJSONBlock
+
+const deleteWithQuery = async (db, selector) => {
+  const res = await db.find({ selector })
+  await db.bulkDocs(res.docs.map((d) => ({ ...d, _deleted: true })))
+}
+
+// // https://pouchdb.com/api.html#batch_fetch
+// const prefix = (p: string) => ({
+//   startkey: `${p}`,
+//   endkey: `${p}\ufff0`,
+// })
+
+// jsonpatch path is _id?
+// pouchdb relies heavily on unique identifiers that operate as the primary index
+// so our use of `mid` in postgres will complement this nicely
+
+const reducerDb = (e) => `${e}/gnarly-reducers`
+const historicalBlocksDb = (e) => `${e}/gnarly-historical-blocks`
+const transactionsDb = (e) => `${e}/gnarly-transactions`
+
+export default class PouchDBPersistInterface implements IPersistInterface {
+
+  private reducers: PouchDB.Database
+  private historicalBlocks: PouchDB.Database
+  private transactions: PouchDB.Database
+
+  constructor (
+    dbEndpoint: string,
+  ) {
+    try {
+      this.reducers = new PouchDB(reducerDb(dbEndpoint))
+      this.historicalBlocks = new PouchDB(historicalBlocksDb(dbEndpoint))
+      this.transactions = new PouchDB(transactionsDb(dbEndpoint))
+    } catch (error) {
+      throw new Error(`Instantiating PouchDBs failed: ${error.stack}`)
+    }
+  }
+
+  // reducer CRUD
+  public saveReducer = async (reducerKey: string): Promise<any> => {
+    await this.reducers.putIfNotExists({ _id: reducerKey })
+  }
+  public deleteReducer = async (reducerKey: string): Promise<any> => {
+    await this.reducers.remove(await this.reducers.get(reducerKey))
+  }
+
+  // blockstream CRUD
+  public getHistoricalBlocks = async (reducerKey: string): Promise<IJSONBlock[]> => {
+    const res = await this.historicalBlocks.find({
+      selector: {
+        reducerKey: { $eq: reducerKey },
+      },
+    })
+
+    return res.docs.map(toJSONBlock).sort(sortByHexProp('number'))
+  }
+
+  public saveHistoricalBlock = async (reducerKey: string, blockRetention: number, block: IJSONBlock): Promise<any> => {
+    await this.historicalBlocks.putIfNotExists({
+      _id: block.hash,
+      ...block,
+      reducerKey,
+    })
+
+    // @TODO (shrugs) - delete blocks after blockRetention for this reducer
+  }
+
+  public deleteHistoricalBlock = async (reducerKey: string, blockHash: string): Promise<any> => {
+    await deleteWithQuery(this.historicalBlocks, {
+      _id: { $eq: blockHash },
+      reducerKey: { $eq: reducerKey },
+    })
+  }
+
+  public deleteHistoricalBlocks = async (reducerKey: string): Promise<any> => {
+    await deleteWithQuery(this.historicalBlocks, {
+      reducerKey: { $eq: reducerKey },
+    })
+  }
+
+  // transaction CRUD
+  public getAllTransactionsTo = async (reducerKey: string, toTxId: null | string): Promise<any> => {
+    //
+  }
+  public getLatestTransaction = async (reducerKey: string): Promise<ITransaction> => {
+    //
+  }
+  public deleteTransaction = async (reducerKey: string, tx: ITransaction): Promise<any> => {
+    //
+  }
+  public saveTransaction = async (reducerKey: string, tx: ITransaction): Promise<any> => {
+    //
+  }
+  public getTransaction = async (reducerKey: string, txId: string): Promise<ITransaction> => {
+    //
+  }
+  public getTransactionByBlockHash = async (reducerKey: string, blockHash: string): Promise<ITransaction> => {
+    //
+  }
+
+  // setup & setdown
+  public setup = async (): Promise<any> => {
+    // implicitely create database if not exists
+    await this.reducers.info()
+    await this.historicalBlocks.info()
+    await this.transactions.info()
+
+    // index historical blocks on reducerKeys
+    this.historicalBlocks.createIndex({
+      index: { fields: ['reducerKey'] },
+    })
+  }
+
+  public setdown = async (): Promise<any> => {
+    await this.reducers.destroy()
+    await this.historicalBlocks.destroy()
+    await this.transactions.destroy()
+  }
+}
diff --git a/packages/gnarly-core/src/stores/sequelize.ts b/packages/gnarly-core/src/stores/sequelize.ts
index 2b66252..016e980 100644
--- a/packages/gnarly-core/src/stores/sequelize.ts
+++ b/packages/gnarly-core/src/stores/sequelize.ts
@@ -126,7 +126,7 @@ async function* batch (
   }
 }
 
-class SequelizePersistInterface implements IPersistInterface {
+export default class SequelizePersistInterface implements IPersistInterface {
   private Reducer
   private HistoricalBlock
   private Transaction
@@ -381,5 +381,3 @@ class SequelizePersistInterface implements IPersistInterface {
     }
   }
 }
-
-export default SequelizePersistInterface
diff --git a/yarn.lock b/yarn.lock
index 298fbd1..e0a7b5a 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -590,6 +590,10 @@
   version "4.1.4"
   resolved "https://registry.yarnpkg.com/@types/chai/-/chai-4.1.4.tgz#5ca073b330d90b4066d6ce18f60d57f2084ce8ca"
 
+"@types/debug@*":
+  version "0.0.30"
+  resolved "https://registry.yarnpkg.com/@types/debug/-/debug-0.0.30.tgz#dc1e40f7af3b9c815013a7860e6252f6352a84df"
+
 "@types/geojson@^1.0.0":
   version "1.0.6"
   resolved "https://registry.yarnpkg.com/@types/geojson/-/geojson-1.0.6.tgz#3e02972728c69248c2af08d60a48cbb8680fffdf"
@@ -626,6 +630,134 @@
   version "9.6.12"
   resolved "https://registry.yarnpkg.com/@types/node/-/node-9.6.12.tgz#ab2d716505858ebc8ee94b347b5c9d311eb81b72"
 
+"@types/pouchdb-adapter-fruitdown@*":
+  version "6.1.2"
+  resolved "https://registry.yarnpkg.com/@types/pouchdb-adapter-fruitdown/-/pouchdb-adapter-fruitdown-6.1.2.tgz#9cd8b8d40f8a50ab1f4ad60fa1646d7cbba4213f"
+  dependencies:
+    "@types/pouchdb-core" "*"
+
+"@types/pouchdb-adapter-http@*":
+  version "6.1.2"
+  resolved "https://registry.yarnpkg.com/@types/pouchdb-adapter-http/-/pouchdb-adapter-http-6.1.2.tgz#185c543d49479b12299cba3bce88b4b5abe16b3d"
+  dependencies:
+    "@types/pouchdb-core" "*"
+
+"@types/pouchdb-adapter-idb@*":
+  version "6.1.2"
+  resolved "https://registry.yarnpkg.com/@types/pouchdb-adapter-idb/-/pouchdb-adapter-idb-6.1.2.tgz#cef0e8025d02586771558f6b188517e5d65800b8"
+  dependencies:
+    "@types/pouchdb-core" "*"
+
+"@types/pouchdb-adapter-leveldb@*":
+  version "6.1.2"
+  resolved "https://registry.yarnpkg.com/@types/pouchdb-adapter-leveldb/-/pouchdb-adapter-leveldb-6.1.2.tgz#94b4949bc7954318451c4da3fc07f6b91004a398"
+  dependencies:
+    "@types/pouchdb-core" "*"
+
+"@types/pouchdb-adapter-localstorage@*":
+  version "6.1.2"
+  resolved "https://registry.yarnpkg.com/@types/pouchdb-adapter-localstorage/-/pouchdb-adapter-localstorage-6.1.2.tgz#3156b6e53131816b565a648ffb44cbbc4ae236af"
+  dependencies:
+    "@types/pouchdb-core" "*"
+
+"@types/pouchdb-adapter-memory@*":
+  version "6.1.2"
+  resolved "https://registry.yarnpkg.com/@types/pouchdb-adapter-memory/-/pouchdb-adapter-memory-6.1.2.tgz#93eca978b1aa0f96a020b4a92b43efb7e6a70a09"
+  dependencies:
+    "@types/pouchdb-core" "*"
+
+"@types/pouchdb-adapter-node-websql@*":
+  version "6.1.2"
+  resolved "https://registry.yarnpkg.com/@types/pouchdb-adapter-node-websql/-/pouchdb-adapter-node-websql-6.1.2.tgz#a0ca40ac19c9c66d9b381f68c90b57bbb3a21fbc"
+  dependencies:
+    "@types/pouchdb-adapter-websql" "*"
+    "@types/pouchdb-core" "*"
+
+"@types/pouchdb-adapter-websql@*":
+  version "6.1.2"
+  resolved "https://registry.yarnpkg.com/@types/pouchdb-adapter-websql/-/pouchdb-adapter-websql-6.1.2.tgz#54ba7ce20dee3426fa13cf2ab3e3d2d143243a95"
+  dependencies:
+    "@types/pouchdb-core" "*"
+
+"@types/pouchdb-browser@*":
+  version "6.1.2"
+  resolved "https://registry.yarnpkg.com/@types/pouchdb-browser/-/pouchdb-browser-6.1.2.tgz#57e645318dc90acb6a6620d5a700c41e7ec9cccd"
+  dependencies:
+    "@types/pouchdb-adapter-http" "*"
+    "@types/pouchdb-adapter-idb" "*"
+    "@types/pouchdb-adapter-websql" "*"
+    "@types/pouchdb-core" "*"
+    "@types/pouchdb-mapreduce" "*"
+    "@types/pouchdb-replication" "*"
+
+"@types/pouchdb-core@*":
+  version "6.4.2"
+  resolved "https://registry.yarnpkg.com/@types/pouchdb-core/-/pouchdb-core-6.4.2.tgz#22dce450e0b1f3c5aa7bbe2bfcb8db579c0be926"
+  dependencies:
+    "@types/debug" "*"
+    "@types/pouchdb-find" "*"
+
+"@types/pouchdb-find@*", "@types/pouchdb-find@^6.3.3":
+  version "6.3.3"
+  resolved "https://registry.yarnpkg.com/@types/pouchdb-find/-/pouchdb-find-6.3.3.tgz#dbad75ba362677d03027ac3e2e5d1361ff296152"
+  dependencies:
+    "@types/pouchdb-core" "*"
+
+"@types/pouchdb-http@*":
+  version "6.1.2"
+  resolved "https://registry.yarnpkg.com/@types/pouchdb-http/-/pouchdb-http-6.1.2.tgz#5875290f7cc502c35c015ed62ad2006c9edb8b57"
+  dependencies:
+    "@types/pouchdb-adapter-http" "*"
+    "@types/pouchdb-core" "*"
+
+"@types/pouchdb-mapreduce@*":
+  version "6.1.3"
+  resolved "https://registry.yarnpkg.com/@types/pouchdb-mapreduce/-/pouchdb-mapreduce-6.1.3.tgz#6db81f82567e5cdbf7c9d98a271296206f63b862"
+  dependencies:
+    "@types/pouchdb-core" "*"
+
+"@types/pouchdb-node@*":
+  version "6.1.2"
+  resolved "https://registry.yarnpkg.com/@types/pouchdb-node/-/pouchdb-node-6.1.2.tgz#476a98c6b09f17c69a1af173b826cb4b55de17ea"
+  dependencies:
+    "@types/pouchdb-adapter-http" "*"
+    "@types/pouchdb-adapter-leveldb" "*"
+    "@types/pouchdb-core" "*"
+    "@types/pouchdb-mapreduce" "*"
+    "@types/pouchdb-replication" "*"
+
+"@types/pouchdb-replication@*":
+  version "6.4.0"
+  resolved "https://registry.yarnpkg.com/@types/pouchdb-replication/-/pouchdb-replication-6.4.0.tgz#94c54e9a0e22643681958859050a98298be8663a"
+  dependencies:
+    "@types/pouchdb-core" "*"
+    "@types/pouchdb-find" "*"
+
+"@types/pouchdb-upsert@^2.2.3":
+  version "2.2.3"
+  resolved "https://registry.yarnpkg.com/@types/pouchdb-upsert/-/pouchdb-upsert-2.2.3.tgz#73c1e62b0a3120b3848681e4568eef506d0001fc"
+  dependencies:
+    "@types/pouchdb-core" "*"
+
+"@types/pouchdb@^6.3.2":
+  version "6.3.2"
+  resolved "https://registry.yarnpkg.com/@types/pouchdb/-/pouchdb-6.3.2.tgz#fa6f70b98c55c7685867887350e44421d5446592"
+  dependencies:
+    "@types/pouchdb-adapter-fruitdown" "*"
+    "@types/pouchdb-adapter-http" "*"
+    "@types/pouchdb-adapter-idb" "*"
+    "@types/pouchdb-adapter-leveldb" "*"
+    "@types/pouchdb-adapter-localstorage" "*"
+    "@types/pouchdb-adapter-memory" "*"
+    "@types/pouchdb-adapter-node-websql" "*"
+    "@types/pouchdb-adapter-websql" "*"
+    "@types/pouchdb-browser" "*"
+    "@types/pouchdb-core" "*"
+    "@types/pouchdb-http" "*"
+    "@types/pouchdb-mapreduce" "*"
+    "@types/pouchdb-node" "*"
+    "@types/pouchdb-replication" "*"
+
 "@types/uuid@^3.4.3":
   version "3.4.3"
   resolved "https://registry.yarnpkg.com/@types/uuid/-/uuid-3.4.3.tgz#121ace265f5569ce40f4f6d0ff78a338c732a754"
@@ -2766,7 +2898,7 @@ ignore@^3.3.5:
   version "3.3.10"
   resolved "https://registry.yarnpkg.com/ignore/-/ignore-3.3.10.tgz#0a97fb876986e8081c631160f8f9f389157f0043"
 
-immediate@3.0.6:
+immediate@3.0.6, immediate@~3.0.5:
   version "3.0.6"
   resolved "https://registry.yarnpkg.com/immediate/-/immediate-3.0.6.tgz#9db1dbd0faf8de6fbe0f5dd5e56bb606280de69b"
 
@@ -3441,6 +3573,12 @@ levn@~0.3.0:
     prelude-ls "~1.1.2"
     type-check "~0.3.2"
 
+lie@3.1.1:
+  version "3.1.1"
+  resolved "https://registry.yarnpkg.com/lie/-/lie-3.1.1.tgz#9a436b2cc7746ca59de7a41fa469b3efb76bd87e"
+  dependencies:
+    immediate "~3.0.5"
+
 load-json-file@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/load-json-file/-/load-json-file-1.1.0.tgz#956905708d58b4bab4c2261b04f59f31c99374c0"
@@ -4497,6 +4635,106 @@ postgres-interval@^1.1.0:
   dependencies:
     xtend "^4.0.0"
 
+pouchdb-abstract-mapreduce@7.0.0:
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/pouchdb-abstract-mapreduce/-/pouchdb-abstract-mapreduce-7.0.0.tgz#946d79073c9795ca03c9b5c318a64372422e8740"
+  dependencies:
+    pouchdb-binary-utils "7.0.0"
+    pouchdb-collate "7.0.0"
+    pouchdb-collections "7.0.0"
+    pouchdb-errors "7.0.0"
+    pouchdb-fetch "7.0.0"
+    pouchdb-mapreduce-utils "7.0.0"
+    pouchdb-md5 "7.0.0"
+    pouchdb-utils "7.0.0"
+
+pouchdb-binary-utils@7.0.0:
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/pouchdb-binary-utils/-/pouchdb-binary-utils-7.0.0.tgz#cb71a288b09572a231f6bab1b4aed201c4d219a7"
+  dependencies:
+    buffer-from "1.1.0"
+
+pouchdb-collate@7.0.0:
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/pouchdb-collate/-/pouchdb-collate-7.0.0.tgz#4f9a0a03c236f1677a971c400b79b7baf6379a4d"
+
+pouchdb-collections@7.0.0:
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/pouchdb-collections/-/pouchdb-collections-7.0.0.tgz#fd1f632337dc6301b0ff8649732ca79204e41780"
+
+pouchdb-errors@7.0.0:
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/pouchdb-errors/-/pouchdb-errors-7.0.0.tgz#4e2a5a8b82af20cbe5f9970ca90b7ec74563caa0"
+  dependencies:
+    inherits "2.0.3"
+
+pouchdb-fetch@7.0.0:
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/pouchdb-fetch/-/pouchdb-fetch-7.0.0.tgz#6b56cc49863837f8d5e38b0956ace03f1fcaf8e0"
+  dependencies:
+    fetch-cookie "0.7.0"
+    node-fetch "^2.0.0"
+
+pouchdb-find@^7.0.0:
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/pouchdb-find/-/pouchdb-find-7.0.0.tgz#f390c3f7a9455e700eb178eb89b235aaf7dc3beb"
+  dependencies:
+    pouchdb-abstract-mapreduce "7.0.0"
+    pouchdb-collate "7.0.0"
+    pouchdb-errors "7.0.0"
+    pouchdb-fetch "7.0.0"
+    pouchdb-md5 "7.0.0"
+    pouchdb-selector-core "7.0.0"
+    pouchdb-utils "7.0.0"
+
+pouchdb-mapreduce-utils@7.0.0:
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/pouchdb-mapreduce-utils/-/pouchdb-mapreduce-utils-7.0.0.tgz#ff342e9d515d4c9cf0b19ad85c78f10f2568493b"
+  dependencies:
+    argsarray "0.0.1"
+    inherits "2.0.3"
+    pouchdb-collections "7.0.0"
+    pouchdb-utils "7.0.0"
+
+pouchdb-md5@7.0.0:
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/pouchdb-md5/-/pouchdb-md5-7.0.0.tgz#935dc6bb507a5f3978fb653ca5790331bae67c96"
+  dependencies:
+    pouchdb-binary-utils "7.0.0"
+    spark-md5 "3.0.0"
+
+pouchdb-promise@^6.1.2:
+  version "6.4.3"
+  resolved "https://registry.yarnpkg.com/pouchdb-promise/-/pouchdb-promise-6.4.3.tgz#74516f4acf74957b54debd0fb2c0e5b5a68ca7b3"
+  dependencies:
+    lie "3.1.1"
+
+pouchdb-selector-core@7.0.0:
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/pouchdb-selector-core/-/pouchdb-selector-core-7.0.0.tgz#824bd0980bd9778b3ddef869306a6cdb928df703"
+  dependencies:
+    pouchdb-collate "7.0.0"
+    pouchdb-utils "7.0.0"
+
+pouchdb-upsert@^2.2.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/pouchdb-upsert/-/pouchdb-upsert-2.2.0.tgz#42b15e420848f3b294c35060589fdb51cf7f7f5f"
+  dependencies:
+    pouchdb-promise "^6.1.2"
+
+pouchdb-utils@7.0.0:
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/pouchdb-utils/-/pouchdb-utils-7.0.0.tgz#48bfced6665b8f5a2b2d2317e2aa57635ed1e88e"
+  dependencies:
+    argsarray "0.0.1"
+    clone-buffer "1.0.0"
+    immediate "3.0.6"
+    inherits "2.0.3"
+    pouchdb-collections "7.0.0"
+    pouchdb-errors "7.0.0"
+    pouchdb-md5 "7.0.0"
+    uuid "3.2.1"
+
 pouchdb@^7.0.0:
   version "7.0.0"
   resolved "https://registry.yarnpkg.com/pouchdb/-/pouchdb-7.0.0.tgz#e95df9ef87127d0ea90222d073794bcb47c38648"

From 095b3e747a2015d23c361f01b764a6cae4ee2065 Mon Sep 17 00:00:00 2001
From: Matt Condon <mattgcondon@gmail.com>
Date: Mon, 13 Aug 2018 13:10:16 -0700
Subject: [PATCH 03/28] feat: add ksuid, begin uuid refactor

---
 packages/gnarly-core/package.json             |   3 +-
 packages/gnarly-core/src/stores/pouchdb.ts    |  90 +++---
 .../src/types/pouchdb-all-dbs.d.ts            |  15 +
 yarn.lock                                     | 296 +++++++++++++++++-
 4 files changed, 357 insertions(+), 47 deletions(-)
 create mode 100644 packages/gnarly-core/src/types/pouchdb-all-dbs.d.ts

diff --git a/packages/gnarly-core/package.json b/packages/gnarly-core/package.json
index bc0bdcb..9c256aa 100644
--- a/packages/gnarly-core/package.json
+++ b/packages/gnarly-core/package.json
@@ -33,6 +33,7 @@
     "debug": "^3.1.0",
     "ethereumjs-blockstream": "^3.1.0",
     "isomorphic-fetch": "^2.2.1",
+    "ksuid": "^1.1.2",
     "lodash.identity": "^3.0.0",
     "lodash.isplainobject": "^4.0.6",
     "moize": "^5.3.1",
@@ -42,10 +43,10 @@
     "p-retry": "^2.0.0",
     "pg": "^7.4.1",
     "pouchdb": "^7.0.0",
+    "pouchdb-all-dbs": "^1.0.2",
     "pouchdb-find": "^7.0.0",
     "pouchdb-upsert": "^2.2.0",
     "sequelize": "^4.35.2",
-    "uuid": "^3.2.1",
     "web3-eth-abi": "^1.0.0-beta.34",
     "web3-utils": "^1.0.0-beta.34"
   },
diff --git a/packages/gnarly-core/src/stores/pouchdb.ts b/packages/gnarly-core/src/stores/pouchdb.ts
index 78c8548..b176ba4 100644
--- a/packages/gnarly-core/src/stores/pouchdb.ts
+++ b/packages/gnarly-core/src/stores/pouchdb.ts
@@ -1,4 +1,7 @@
+/* tslint:disable max-classes-per-file */
+
 import PouchDB = require('pouchdb')
+require('pouchdb-all-dbs')(PouchDB)
 PouchDB.plugin(require('pouchdb-upsert'))
 PouchDB.plugin(require('pouchdb-find'))
 
@@ -7,12 +10,16 @@ import {
   ITransaction,
 } from '../ourbit/types'
 import { IPersistInterface } from '../stores'
-import { toBN } from '../utils'
+import { forEach, toBN } from '../utils'
+
+// all databases should have --gnarly prefix so we can delete them and not destroy any user data
+// that might be sitting around
+const GNARLY_DB_PREFIX = '--gnarly'
 
 const sortByHexProp = (prop: string) => (a, b) => toBN(a[prop]).sub(toBN(b[prop])).toNumber()
 const toJSONBlock = (block) => block as IJSONBlock
 
-const deleteWithQuery = async (db, selector) => {
+const deleteWithQuery = async (db: PouchDB.Database, selector: object) => {
   const res = await db.find({ selector })
   await db.bulkDocs(res.docs.map((d) => ({ ...d, _deleted: true })))
 }
@@ -27,23 +34,40 @@ const deleteWithQuery = async (db, selector) => {
 // pouchdb relies heavily on unique identifiers that operate as the primary index
 // so our use of `mid` in postgres will complement this nicely
 
-const reducerDb = (e) => `${e}/gnarly-reducers`
-const historicalBlocksDb = (e) => `${e}/gnarly-historical-blocks`
-const transactionsDb = (e) => `${e}/gnarly-transactions`
+const reducerDb = (e: string) => `${e}/${GNARLY_DB_PREFIX}-reducers`
+const historicalBlocksDb = (e: string) => (key: string): PouchDB.Database =>
+  new PouchDB(`${e}/${GNARLY_DB_PREFIX}-${key}-historical-blocks`)
+const transactionsDb = (e: string) => (key: string): PouchDB.Database =>
+  new PouchDB(`${e}/${GNARLY_DB_PREFIX}-${key}-transactions`)
 
-export default class PouchDBPersistInterface implements IPersistInterface {
+class DyanmicDict<T> {
+  private cache: { [_: string]: T } = {}
+
+  constructor (
+    private dbGenerator: (key: string) => T,
+  ) {
+  }
+
+  public get = (key: string) => {
+    if (this.cache[key]) { return this.cache[key] }
 
+    this.cache[key] = this.dbGenerator(key)
+    return this.cache[key]
+  }
+}
+
+export default class PouchDBPersistInterface implements IPersistInterface {
   private reducers: PouchDB.Database
-  private historicalBlocks: PouchDB.Database
-  private transactions: PouchDB.Database
+  private historicalBlocks: DyanmicDict<PouchDB.Database>
+  private transactions: DyanmicDict<PouchDB.Database>
 
   constructor (
     dbEndpoint: string,
   ) {
     try {
       this.reducers = new PouchDB(reducerDb(dbEndpoint))
-      this.historicalBlocks = new PouchDB(historicalBlocksDb(dbEndpoint))
-      this.transactions = new PouchDB(transactionsDb(dbEndpoint))
+      this.historicalBlocks = new DyanmicDict(historicalBlocksDb(dbEndpoint))
+      this.transactions = new DyanmicDict(transactionsDb(dbEndpoint))
     } catch (error) {
       throw new Error(`Instantiating PouchDBs failed: ${error.stack}`)
     }
@@ -59,36 +83,32 @@ export default class PouchDBPersistInterface implements IPersistInterface {
 
   // blockstream CRUD
   public getHistoricalBlocks = async (reducerKey: string): Promise<IJSONBlock[]> => {
-    const res = await this.historicalBlocks.find({
-      selector: {
-        reducerKey: { $eq: reducerKey },
-      },
-    })
-
-    return res.docs.map(toJSONBlock).sort(sortByHexProp('number'))
+    const res = await this.historicalBlocks.get(reducerKey).allDocs()
+    return res.rows
+      .map((r) => r.doc)
+      .map(toJSONBlock)
+      .sort(sortByHexProp('number'))
   }
 
   public saveHistoricalBlock = async (reducerKey: string, blockRetention: number, block: IJSONBlock): Promise<any> => {
-    await this.historicalBlocks.putIfNotExists({
-      _id: block.hash,
-      ...block,
-      reducerKey,
+    await this.historicalBlocks
+      .get(reducerKey)
+      .putIfNotExists({
+        _id: block.hash,
+        ...block,
     })
 
     // @TODO (shrugs) - delete blocks after blockRetention for this reducer
   }
 
   public deleteHistoricalBlock = async (reducerKey: string, blockHash: string): Promise<any> => {
-    await deleteWithQuery(this.historicalBlocks, {
+    await deleteWithQuery(this.historicalBlocks.get(reducerKey), {
       _id: { $eq: blockHash },
-      reducerKey: { $eq: reducerKey },
     })
   }
 
   public deleteHistoricalBlocks = async (reducerKey: string): Promise<any> => {
-    await deleteWithQuery(this.historicalBlocks, {
-      reducerKey: { $eq: reducerKey },
-    })
+    await this.historicalBlocks.get(reducerKey).destroy()
   }
 
   // transaction CRUD
@@ -113,20 +133,14 @@ export default class PouchDBPersistInterface implements IPersistInterface {
 
   // setup & setdown
   public setup = async (): Promise<any> => {
-    // implicitely create database if not exists
-    await this.reducers.info()
-    await this.historicalBlocks.info()
-    await this.transactions.info()
-
-    // index historical blocks on reducerKeys
-    this.historicalBlocks.createIndex({
-      index: { fields: ['reducerKey'] },
-    })
+    // databases are implicitely created and schemaless, so this fn isn't really going to do anything
   }
 
   public setdown = async (): Promise<any> => {
-    await this.reducers.destroy()
-    await this.historicalBlocks.destroy()
-    await this.transactions.destroy()
+    const dbs = await PouchDB.allDbs()
+    await forEach(
+      dbs.filter((db) => db.startsWith(GNARLY_DB_PREFIX)),
+      async (db) => await (new PouchDB(db)).destroy(),
+    )
   }
 }
diff --git a/packages/gnarly-core/src/types/pouchdb-all-dbs.d.ts b/packages/gnarly-core/src/types/pouchdb-all-dbs.d.ts
new file mode 100644
index 0000000..93aec3f
--- /dev/null
+++ b/packages/gnarly-core/src/types/pouchdb-all-dbs.d.ts
@@ -0,0 +1,15 @@
+
+declare module 'pouchdb-all-dbs' {
+  const pouchdbAllDbs: (pouchDB: PouchDB.Static) => void;
+  export = pouchdbAllDbs;
+}
+
+declare namespace PouchDB {
+  interface Static {
+    allDbs(callback: (err: any, dbs: string[]) => void): void;
+    allDbs(): Promise<string[]>;
+
+    resetAllDbs(callback: (err: any) => void): void;
+    resetAllDbs(): Promise<void>;
+  }
+}
diff --git a/yarn.lock b/yarn.lock
index e0a7b5a..689e14e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -810,6 +810,14 @@ acorn@5.5.3, acorn@^5.0.3:
   version "5.5.3"
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.5.3.tgz#f473dd47e0277a08e28e9bec5aeeb04751f0b8c9"
 
+acorn@^1.0.3:
+  version "1.2.2"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-1.2.2.tgz#c8ce27de0acc76d896d2b1fad3df588d9e82f014"
+
+acorn@^5.2.1:
+  version "5.7.1"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.7.1.tgz#f095829297706a7c9776958c0afc8930a9b9d9d8"
+
 ajv@^4.9.1:
   version "4.11.8"
   resolved "https://registry.yarnpkg.com/ajv/-/ajv-4.11.8.tgz#82ffb02b29e662ae53bdc20af15947706739c536"
@@ -988,6 +996,14 @@ assign-symbols@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/assign-symbols/-/assign-symbols-1.0.0.tgz#59667f41fadd4f20ccbc2bb96b8d4f7f78ec0367"
 
+ast-types@0.8.15:
+  version "0.8.15"
+  resolved "https://registry.yarnpkg.com/ast-types/-/ast-types-0.8.15.tgz#8eef0827f04dff0ec8857ba925abe3fea6194e52"
+
+ast-types@0.9.6:
+  version "0.9.6"
+  resolved "https://registry.yarnpkg.com/ast-types/-/ast-types-0.9.6.tgz#102c9e9e9005d3e7e3829bf0c4fa24ee862ee9b9"
+
 async-each@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/async-each/-/async-each-1.0.1.tgz#19d386a1d9edc6e7c1c85d388aedbcc56d33602d"
@@ -1043,6 +1059,14 @@ balanced-match@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/balanced-match/-/balanced-match-1.0.0.tgz#89b4d199ab2bee49de164ea02b89ce462d71b767"
 
+base62@0.1.1:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/base62/-/base62-0.1.1.tgz#7b4174c2f94449753b11c2651c083da841a7b084"
+
+base62@^1.1.0:
+  version "1.2.8"
+  resolved "https://registry.yarnpkg.com/base62/-/base62-1.2.8.tgz#1264cb0fb848d875792877479dbe8bae6bae3428"
+
 base@^0.11.1:
   version "0.11.2"
   resolved "https://registry.yarnpkg.com/base/-/base-0.11.2.tgz#7bde5ced145b6d551a90db87f83c558b4eb48a8f"
@@ -1518,10 +1542,28 @@ commander@2.6.0:
   version "2.6.0"
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.6.0.tgz#9df7e52fb2a0cb0fb89058ee80c3104225f37e1d"
 
+commander@^2.5.0:
+  version "2.17.1"
+  resolved "https://registry.yarnpkg.com/commander/-/commander-2.17.1.tgz#bd77ab7de6de94205ceacc72f1716d29f20a77bf"
+
 commondir@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/commondir/-/commondir-1.0.1.tgz#ddd800da0c66127393cca5950ea968a3aaf1253b"
 
+commoner@^0.10.1:
+  version "0.10.8"
+  resolved "https://registry.yarnpkg.com/commoner/-/commoner-0.10.8.tgz#34fc3672cd24393e8bb47e70caa0293811f4f2c5"
+  dependencies:
+    commander "^2.5.0"
+    detective "^4.3.1"
+    glob "^5.0.15"
+    graceful-fs "^4.1.2"
+    iconv-lite "^0.4.5"
+    mkdirp "^0.5.0"
+    private "^0.1.6"
+    q "^1.1.2"
+    recast "^0.11.17"
+
 compare-func@^1.3.1:
   version "1.3.2"
   resolved "https://registry.yarnpkg.com/compare-func/-/compare-func-1.3.2.tgz#99dd0ba457e1f9bc722b12c08ec33eeab31fa648"
@@ -1908,6 +1950,10 @@ define-property@^2.0.2:
     is-descriptor "^1.0.2"
     isobject "^3.0.1"
 
+defined@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/defined/-/defined-1.0.0.tgz#c98d9bcef75674188e110969151199e39b1fa693"
+
 delayed-stream@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/delayed-stream/-/delayed-stream-1.0.0.tgz#df3ae199acadfb7d440aaae0b29e2272b24ec619"
@@ -1936,6 +1982,13 @@ detect-libc@^1.0.2, detect-libc@^1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/detect-libc/-/detect-libc-1.0.3.tgz#fa137c4bd698edf55cd5cd02ac559f91a4c4ba9b"
 
+detective@^4.3.1:
+  version "4.7.1"
+  resolved "https://registry.yarnpkg.com/detective/-/detective-4.7.1.tgz#0eca7314338442febb6d65da54c10bb1c82b246e"
+  dependencies:
+    acorn "^5.2.1"
+    defined "^1.0.0"
+
 dezalgo@^1.0.0:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/dezalgo/-/dezalgo-1.0.3.tgz#7f742de066fc748bc8db820569dddce49bf0d456"
@@ -2064,6 +2117,40 @@ error-ex@^1.2.0, error-ex@^1.3.1:
   dependencies:
     is-arrayish "^0.2.1"
 
+es-abstract@^1.4.3:
+  version "1.12.0"
+  resolved "https://registry.yarnpkg.com/es-abstract/-/es-abstract-1.12.0.tgz#9dbbdd27c6856f0001421ca18782d786bf8a6165"
+  dependencies:
+    es-to-primitive "^1.1.1"
+    function-bind "^1.1.1"
+    has "^1.0.1"
+    is-callable "^1.1.3"
+    is-regex "^1.0.4"
+
+es-to-primitive@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/es-to-primitive/-/es-to-primitive-1.1.1.tgz#45355248a88979034b6792e19bb81f2b7975dd0d"
+  dependencies:
+    is-callable "^1.1.1"
+    is-date-object "^1.0.1"
+    is-symbol "^1.0.1"
+
+es3ify@^0.1.3:
+  version "0.1.4"
+  resolved "https://registry.yarnpkg.com/es3ify/-/es3ify-0.1.4.tgz#ad9fa5df1ae34f3f31e1211b5818b2d51078dfd1"
+  dependencies:
+    esprima-fb "~3001.0001.0000-dev-harmony-fb"
+    jstransform "~3.0.0"
+    through "~2.3.4"
+
+es3ify@^0.2.2:
+  version "0.2.2"
+  resolved "https://registry.yarnpkg.com/es3ify/-/es3ify-0.2.2.tgz#5dae3e650e5be3684b88066513d528d092629862"
+  dependencies:
+    esprima "^2.7.1"
+    jstransform "~11.0.0"
+    through "~2.3.4"
+
 es6-denodeify@^0.1.1:
   version "0.1.5"
   resolved "https://registry.yarnpkg.com/es6-denodeify/-/es6-denodeify-0.1.5.tgz#31d4d5fe9c5503e125460439310e16a2a3f39c1f"
@@ -2087,6 +2174,22 @@ escodegen@1.8.1:
   optionalDependencies:
     source-map "~0.2.0"
 
+esmangle-evaluator@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/esmangle-evaluator/-/esmangle-evaluator-1.0.1.tgz#620d866ef4861b3311f75766d52a8572bb3c6336"
+
+esprima-fb@^15001.1.0-dev-harmony-fb:
+  version "15001.1.0-dev-harmony-fb"
+  resolved "https://registry.yarnpkg.com/esprima-fb/-/esprima-fb-15001.1.0-dev-harmony-fb.tgz#30a947303c6b8d5e955bee2b99b1d233206a6901"
+
+esprima-fb@~15001.1001.0-dev-harmony-fb:
+  version "15001.1001.0-dev-harmony-fb"
+  resolved "https://registry.yarnpkg.com/esprima-fb/-/esprima-fb-15001.1001.0-dev-harmony-fb.tgz#43beb57ec26e8cf237d3dd8b33e42533577f2659"
+
+esprima-fb@~3001.0001.0000-dev-harmony-fb, esprima-fb@~3001.1.0-dev-harmony-fb:
+  version "3001.1.0-dev-harmony-fb"
+  resolved "https://registry.yarnpkg.com/esprima-fb/-/esprima-fb-3001.0001.0000-dev-harmony-fb.tgz#b77d37abcd38ea0b77426bb8bc2922ce6b426411"
+
 esprima@^2.7.1:
   version "2.7.3"
   resolved "https://registry.yarnpkg.com/esprima/-/esprima-2.7.3.tgz#96e3b70d5779f6ad49cd032673d1c312767ba581"
@@ -2095,6 +2198,10 @@ esprima@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/esprima/-/esprima-4.0.0.tgz#4499eddcd1110e0b218bacf2fa7f7f59f55ca804"
 
+esprima@~3.1.0:
+  version "3.1.3"
+  resolved "https://registry.yarnpkg.com/esprima/-/esprima-3.1.3.tgz#fdca51cee6133895e3c88d535ce49dbff62a4633"
+
 estraverse@^1.9.1:
   version "1.9.3"
   resolved "https://registry.yarnpkg.com/estraverse/-/estraverse-1.9.3.tgz#af67f2dc922582415950926091a4005d29c9bb44"
@@ -2275,6 +2382,15 @@ extsprintf@^1.2.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/extsprintf/-/extsprintf-1.4.0.tgz#e2689f8f356fad62cca65a3a91c5df5f9551692f"
 
+falafel@^1.0.1:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/falafel/-/falafel-1.2.0.tgz#c18d24ef5091174a497f318cd24b026a25cddab4"
+  dependencies:
+    acorn "^1.0.3"
+    foreach "^2.0.5"
+    isarray "0.0.1"
+    object-keys "^1.0.6"
+
 fast-deep-equal@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/fast-deep-equal/-/fast-deep-equal-1.1.0.tgz#c053477817c86b51daa853c81e059b733d023614"
@@ -2490,7 +2606,7 @@ fstream@^1.0.0, fstream@^1.0.2:
     mkdirp ">=0.5 0"
     rimraf "2"
 
-function-bind@^1.1.1:
+function-bind@^1.0.2, function-bind@^1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/function-bind/-/function-bind-1.1.1.tgz#a56899d3ea3c9bab874bb9773b7c5ede92f4895d"
 
@@ -2622,6 +2738,16 @@ glob@7.1.2, glob@^7.0.3, glob@^7.0.5, glob@^7.0.6, glob@^7.1.1, glob@^7.1.2:
     once "^1.3.0"
     path-is-absolute "^1.0.0"
 
+glob@^5.0.15:
+  version "5.0.15"
+  resolved "https://registry.yarnpkg.com/glob/-/glob-5.0.15.tgz#1bc936b9e02f4a603fcc222ecf7633d30b8b93b1"
+  dependencies:
+    inflight "^1.0.4"
+    inherits "2"
+    minimatch "2 || 3"
+    once "^1.3.0"
+    path-is-absolute "^1.0.0"
+
 global-dirs@^0.1.0:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/global-dirs/-/global-dirs-0.1.1.tgz#b319c0dd4607f353f3be9cca4c72fc148c49f445"
@@ -2787,6 +2913,12 @@ has-values@^1.0.0:
     is-number "^3.0.0"
     kind-of "^4.0.0"
 
+has@^1.0.1:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/has/-/has-1.0.3.tgz#722d7cbfc1f6aa8241f16dd814e011e1f41e8796"
+  dependencies:
+    function-bind "^1.1.1"
+
 hash.js@^1.0.0, hash.js@^1.0.3:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/hash.js/-/hash.js-1.1.3.tgz#340dedbe6290187151c1ea1d777a3448935df846"
@@ -2884,6 +3016,12 @@ iconv-lite@^0.4.17, iconv-lite@^0.4.4, iconv-lite@~0.4.13:
   dependencies:
     safer-buffer ">= 2.1.2 < 3"
 
+iconv-lite@^0.4.5:
+  version "0.4.23"
+  resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.23.tgz#297871f63be507adcfbfca715d0cd0eed84e9a63"
+  dependencies:
+    safer-buffer ">= 2.1.2 < 3"
+
 ignore-by-default@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/ignore-by-default/-/ignore-by-default-1.0.1.tgz#48ca6d72f6c6a3af00a9ad4ae6876be3889e2b09"
@@ -2967,6 +3105,13 @@ init-package-json@^1.10.3:
     validate-npm-package-license "^3.0.1"
     validate-npm-package-name "^3.0.0"
 
+inline-process-browser@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/inline-process-browser/-/inline-process-browser-1.0.0.tgz#46a61b153dd3c9b1624b1a00626edb4f7f414f22"
+  dependencies:
+    falafel "^1.0.1"
+    through2 "^0.6.5"
+
 inquirer@^5.1.0:
   version "5.2.0"
   resolved "https://registry.yarnpkg.com/inquirer/-/inquirer-5.2.0.tgz#db350c2b73daca77ff1243962e9f22f099685726"
@@ -3042,6 +3187,10 @@ is-builtin-module@^1.0.0:
   dependencies:
     builtin-modules "^1.0.0"
 
+is-callable@^1.1.1, is-callable@^1.1.3:
+  version "1.1.4"
+  resolved "https://registry.yarnpkg.com/is-callable/-/is-callable-1.1.4.tgz#1e1adf219e1eeb684d691f9d6a05ff0d30a24d75"
+
 is-ci@^1.0.10:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/is-ci/-/is-ci-1.1.0.tgz#247e4162e7860cebbdaf30b774d6b0ac7dcfe7a5"
@@ -3060,6 +3209,10 @@ is-data-descriptor@^1.0.0:
   dependencies:
     kind-of "^6.0.0"
 
+is-date-object@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/is-date-object/-/is-date-object-1.0.1.tgz#9aa20eb6aeebbff77fbd33e74ca01b33581d3a16"
+
 is-descriptor@^0.1.0:
   version "0.1.6"
   resolved "https://registry.yarnpkg.com/is-descriptor/-/is-descriptor-0.1.6.tgz#366d8240dde487ca51823b1ab9f07a10a78251ca"
@@ -3189,6 +3342,12 @@ is-redirect@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/is-redirect/-/is-redirect-1.0.0.tgz#1d03dded53bd8db0f30c26e4f95d36fc7c87dc24"
 
+is-regex@^1.0.4:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/is-regex/-/is-regex-1.0.4.tgz#5517489b547091b0930e095654ced25ee97e9491"
+  dependencies:
+    has "^1.0.1"
+
 is-relative@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/is-relative/-/is-relative-1.0.0.tgz#a1bb6935ce8c5dba1e8b9754b9b2dcc020e2260d"
@@ -3207,6 +3366,10 @@ is-subset@^0.1.1:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/is-subset/-/is-subset-0.1.1.tgz#8a59117d932de1de00f245fcdd39ce43f1e939a6"
 
+is-symbol@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/is-symbol/-/is-symbol-1.0.1.tgz#3cc59f00025194b6ab2e38dbae6689256b660572"
+
 is-text-path@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/is-text-path/-/is-text-path-1.0.1.tgz#4e1aa0fb51bfbcb3e92688001397202c1775b66e"
@@ -3404,6 +3567,24 @@ jsprim@^1.2.2:
     json-schema "0.2.3"
     verror "1.10.0"
 
+jstransform@~11.0.0:
+  version "11.0.3"
+  resolved "https://registry.yarnpkg.com/jstransform/-/jstransform-11.0.3.tgz#09a78993e0ae4d4ef4487f6155a91f6190cb4223"
+  dependencies:
+    base62 "^1.1.0"
+    commoner "^0.10.1"
+    esprima-fb "^15001.1.0-dev-harmony-fb"
+    object-assign "^2.0.0"
+    source-map "^0.4.2"
+
+jstransform@~3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/jstransform/-/jstransform-3.0.0.tgz#a2591ab6cee8d97bf3be830dbfa2313b87cd640b"
+  dependencies:
+    base62 "0.1.1"
+    esprima-fb "~3001.1.0-dev-harmony-fb"
+    source-map "0.1.31"
+
 keccakjs@^0.2.1:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/keccakjs/-/keccakjs-0.2.1.tgz#1d633af907ef305bbf9f2fa616d56c44561dfa4d"
@@ -3431,6 +3612,12 @@ kind-of@^6.0.0, kind-of@^6.0.2:
   version "6.0.2"
   resolved "https://registry.yarnpkg.com/kind-of/-/kind-of-6.0.2.tgz#01146b36a6218e64e58f3a8d66de5d7fc6f6d051"
 
+ksuid@^1.1.2:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/ksuid/-/ksuid-1.1.2.tgz#582ab1bc9fe36e6b9ff3c0fd85c76c67132150ec"
+  dependencies:
+    string.prototype.padstart "^3.0.0"
+
 latest-version@^3.0.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/latest-version/-/latest-version-3.1.0.tgz#a205383fea322b33b5ae3b18abee0dc2f356ee15"
@@ -3573,6 +3760,15 @@ levn@~0.3.0:
     prelude-ls "~1.1.2"
     type-check "~0.3.2"
 
+lie@3.0.4:
+  version "3.0.4"
+  resolved "https://registry.yarnpkg.com/lie/-/lie-3.0.4.tgz#bc7ae1ebe7f1c8de39afdcd4f789076b47b0f634"
+  dependencies:
+    es3ify "^0.2.2"
+    immediate "~3.0.5"
+    inline-process-browser "^1.0.0"
+    unreachable-branch-transform "^0.3.0"
+
 lie@3.1.1:
   version "3.1.1"
   resolved "https://registry.yarnpkg.com/lie/-/lie-3.1.1.tgz#9a436b2cc7746ca59de7a41fa469b3efb76bd87e"
@@ -3844,7 +4040,7 @@ minimalistic-crypto-utils@^1.0.0, minimalistic-crypto-utils@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/minimalistic-crypto-utils/-/minimalistic-crypto-utils-1.0.1.tgz#f6c00c1c0b082246e5c4d99dfb8c7c083b2b582a"
 
-minimatch@3.0.4, minimatch@^3.0.0, minimatch@^3.0.2, minimatch@^3.0.4:
+"minimatch@2 || 3", minimatch@3.0.4, minimatch@^3.0.0, minimatch@^3.0.2, minimatch@^3.0.4:
   version "3.0.4"
   resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-3.0.4.tgz#5166e286457f03306064be5497e8dbb0c3d32083"
   dependencies:
@@ -4229,6 +4425,10 @@ oauth-sign@~0.9.0:
   version "0.9.0"
   resolved "https://registry.yarnpkg.com/oauth-sign/-/oauth-sign-0.9.0.tgz#47a7b016baa68b5fa0ecf3dee08a85c679ac6455"
 
+object-assign@^2.0.0:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/object-assign/-/object-assign-2.1.1.tgz#43c36e5d569ff8e4816c4efa8be02d26967c18aa"
+
 object-assign@^4, object-assign@^4.0.1, object-assign@^4.1.0, object-assign@^4.1.1:
   version "4.1.1"
   resolved "https://registry.yarnpkg.com/object-assign/-/object-assign-4.1.1.tgz#2109adc7965887cfc05cbbd442cac8bfbb360863"
@@ -4241,7 +4441,7 @@ object-copy@^0.1.0:
     define-property "^0.2.5"
     kind-of "^3.0.3"
 
-object-keys@^1.0.11, object-keys@^1.0.8:
+object-keys@^1.0.11, object-keys@^1.0.6, object-keys@^1.0.8:
   version "1.0.12"
   resolved "https://registry.yarnpkg.com/object-keys/-/object-keys-1.0.12.tgz#09c53855377575310cca62f55bb334abff7b3ed2"
 
@@ -4648,6 +4848,16 @@ pouchdb-abstract-mapreduce@7.0.0:
     pouchdb-md5 "7.0.0"
     pouchdb-utils "7.0.0"
 
+pouchdb-all-dbs@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/pouchdb-all-dbs/-/pouchdb-all-dbs-1.0.2.tgz#8fa1aa4b01665e00e0da9c61bf6dbb99eca05d3c"
+  dependencies:
+    argsarray "0.0.1"
+    es3ify "^0.1.3"
+    inherits "~2.0.1"
+    pouchdb-promise "5.4.3"
+    tiny-queue "^0.2.0"
+
 pouchdb-binary-utils@7.0.0:
   version "7.0.0"
   resolved "https://registry.yarnpkg.com/pouchdb-binary-utils/-/pouchdb-binary-utils-7.0.0.tgz#cb71a288b09572a231f6bab1b4aed201c4d219a7"
@@ -4703,6 +4913,12 @@ pouchdb-md5@7.0.0:
     pouchdb-binary-utils "7.0.0"
     spark-md5 "3.0.0"
 
+pouchdb-promise@5.4.3:
+  version "5.4.3"
+  resolved "https://registry.yarnpkg.com/pouchdb-promise/-/pouchdb-promise-5.4.3.tgz#331d670b1989d5a03f268811214f27f54150cb2b"
+  dependencies:
+    lie "3.0.4"
+
 pouchdb-promise@^6.1.2:
   version "6.4.3"
   resolved "https://registry.yarnpkg.com/pouchdb-promise/-/pouchdb-promise-6.4.3.tgz#74516f4acf74957b54debd0fb2c0e5b5a68ca7b3"
@@ -4807,6 +5023,10 @@ prepend-http@^1.0.1:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/prepend-http/-/prepend-http-1.0.4.tgz#d4f4562b0ce3696e41ac52d0e002e57a635dc6dc"
 
+private@^0.1.6, private@~0.1.5:
+  version "0.1.8"
+  resolved "https://registry.yarnpkg.com/private/-/private-0.1.8.tgz#2381edb3689f7a53d653190060fcf822d2f368ff"
+
 process-nextick-args@^2.0.0, process-nextick-args@~2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/process-nextick-args/-/process-nextick-args-2.0.0.tgz#a37d732f4271b4ab1ad070d35508e8290788ffaa"
@@ -4886,7 +5106,7 @@ punycode@^1.4.1:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/punycode/-/punycode-1.4.1.tgz#c0d5a63b2718800ad8e1eb0fa5269c84dd41845e"
 
-q@^1.5.1:
+q@^1.1.2, q@^1.5.1:
   version "1.5.1"
   resolved "https://registry.yarnpkg.com/q/-/q-1.5.1.tgz#7e32f75b41381291d04611f1bf14109ac00651d7"
 
@@ -5012,6 +5232,15 @@ readable-stream@1.0.33:
     isarray "0.0.1"
     string_decoder "~0.10.x"
 
+"readable-stream@>=1.0.33-1 <1.1.0-0":
+  version "1.0.34"
+  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-1.0.34.tgz#125820e34bc842d2f2aaafafe4c2916ee32c157c"
+  dependencies:
+    core-util-is "~1.0.0"
+    inherits "~2.0.1"
+    isarray "0.0.1"
+    string_decoder "~0.10.x"
+
 readable-stream@^2.0.0, readable-stream@^2.0.1, readable-stream@^2.0.2, readable-stream@^2.0.4, readable-stream@^2.0.5, readable-stream@^2.0.6, readable-stream@^2.1.4, readable-stream@^2.1.5, readable-stream@^2.2.2, readable-stream@^2.3.0, readable-stream@^2.3.3, readable-stream@^2.3.5:
   version "2.3.6"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.3.6.tgz#b11c27d88b8ff1fbe070643cf94b0c79ae1b0aaf"
@@ -5046,6 +5275,24 @@ readdirp@^2.0.0:
     readable-stream "^2.0.2"
     set-immediate-shim "^1.0.1"
 
+recast@^0.10.1:
+  version "0.10.43"
+  resolved "https://registry.yarnpkg.com/recast/-/recast-0.10.43.tgz#b95d50f6d60761a5f6252e15d80678168491ce7f"
+  dependencies:
+    ast-types "0.8.15"
+    esprima-fb "~15001.1001.0-dev-harmony-fb"
+    private "~0.1.5"
+    source-map "~0.5.0"
+
+recast@^0.11.17:
+  version "0.11.23"
+  resolved "https://registry.yarnpkg.com/recast/-/recast-0.11.23.tgz#451fd3004ab1e4df9b4e4b66376b2a21912462d3"
+  dependencies:
+    ast-types "0.9.6"
+    esprima "~3.1.0"
+    private "~0.1.5"
+    source-map "~0.5.0"
+
 redent@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/redent/-/redent-1.0.0.tgz#cf916ab1fd5f1f16dfb20822dd6ec7f730c2afde"
@@ -5590,13 +5837,19 @@ source-map-url@^0.4.0:
   version "0.4.0"
   resolved "https://registry.yarnpkg.com/source-map-url/-/source-map-url-0.4.0.tgz#3e935d7ddd73631b97659956d55128e87b5084a3"
 
-source-map@^0.4.4:
+source-map@0.1.31:
+  version "0.1.31"
+  resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.1.31.tgz#9f704d0d69d9e138a81badf6ebb4fde33d151c61"
+  dependencies:
+    amdefine ">=0.0.4"
+
+source-map@^0.4.2, source-map@^0.4.4:
   version "0.4.4"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.4.4.tgz#eba4f5da9c0dc999de68032d8b4f76173652036b"
   dependencies:
     amdefine ">=0.0.4"
 
-source-map@^0.5.0, source-map@^0.5.3, source-map@^0.5.6, source-map@~0.5.1:
+source-map@^0.5.0, source-map@^0.5.3, source-map@^0.5.6, source-map@~0.5.0, source-map@~0.5.1:
   version "0.5.7"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.5.7.tgz#8a039d2d1021d22d1ea14c80d8ea468ba2ef3fcc"
 
@@ -5743,6 +5996,14 @@ string-width@^2.0.0, string-width@^2.1.0, string-width@^2.1.1:
     is-fullwidth-code-point "^2.0.0"
     strip-ansi "^4.0.0"
 
+string.prototype.padstart@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/string.prototype.padstart/-/string.prototype.padstart-3.0.0.tgz#5bcfad39f4649bb2d031292e19bcf0b510d4b242"
+  dependencies:
+    define-properties "^1.1.2"
+    es-abstract "^1.4.3"
+    function-bind "^1.0.2"
+
 string_decoder@~0.10.x:
   version "0.10.31"
   resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-0.10.31.tgz#62e203bc41766c6c28c9fc84301dab1c5310fa94"
@@ -5961,7 +6222,14 @@ through2@2.0.3, through2@^2.0.0, through2@^2.0.2, through2@^2.0.3, through2@~2.0
     readable-stream "^2.1.5"
     xtend "~4.0.1"
 
-through@2, "through@>=2.2.7 <3", through@^2.3.4, through@^2.3.6, through@~2.3, through@~2.3.1:
+through2@^0.6.2, through2@^0.6.5:
+  version "0.6.5"
+  resolved "https://registry.yarnpkg.com/through2/-/through2-0.6.5.tgz#41ab9c67b29d57209071410e1d7a7a968cd3ad48"
+  dependencies:
+    readable-stream ">=1.0.33-1 <1.1.0-0"
+    xtend ">=4.0.0 <4.1.0-0"
+
+through@2, "through@>=2.2.7 <3", through@^2.3.4, through@^2.3.6, through@~2.3, through@~2.3.1, through@~2.3.4:
   version "2.3.8"
   resolved "https://registry.yarnpkg.com/through/-/through-2.3.8.tgz#0dd4c9ffaabc357960b1b724115d7e0e86a2e1f5"
 
@@ -5969,6 +6237,10 @@ timed-out@^4.0.0, timed-out@^4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/timed-out/-/timed-out-4.0.1.tgz#f32eacac5a175bea25d7fab565ab3ed8741ef56f"
 
+tiny-queue@^0.2.0:
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/tiny-queue/-/tiny-queue-0.2.1.tgz#25a67f2c6e253b2ca941977b5ef7442ef97a6046"
+
 tmp@^0.0.33:
   version "0.0.33"
   resolved "https://registry.yarnpkg.com/tmp/-/tmp-0.0.33.tgz#6d34335889768d21b2bcda0aa277ced3b1bfadf9"
@@ -6221,6 +6493,14 @@ unpipe@1.0.0, unpipe@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/unpipe/-/unpipe-1.0.0.tgz#b2bf4ee8514aae6165b4817829d21b2ef49904ec"
 
+unreachable-branch-transform@^0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/unreachable-branch-transform/-/unreachable-branch-transform-0.3.0.tgz#d99cc4c6e746d264928845b611db54b0f3474caa"
+  dependencies:
+    esmangle-evaluator "^1.0.0"
+    recast "^0.10.1"
+    through2 "^0.6.2"
+
 unset-value@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/unset-value/-/unset-value-1.0.0.tgz#8376873f7d2335179ffb1e6fc3a8ed0dfc8ab559"
@@ -6578,7 +6858,7 @@ xregexp@4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/xregexp/-/xregexp-4.0.0.tgz#e698189de49dd2a18cc5687b05e17c8e43943020"
 
-xtend@^4.0.0, xtend@^4.0.1, xtend@~4.0.0, xtend@~4.0.1:
+"xtend@>=4.0.0 <4.1.0-0", xtend@^4.0.0, xtend@^4.0.1, xtend@~4.0.0, xtend@~4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/xtend/-/xtend-4.0.1.tgz#a5c6d532be656e23db820efb943a1f04998d63af"
 

From 76ef2e81887b85f7e055808c4d6f34aab059e6c9 Mon Sep 17 00:00:00 2001
From: Matt Condon <mattgcondon@gmail.com>
Date: Mon, 13 Aug 2018 13:18:53 -0700
Subject: [PATCH 04/28] feat: replace uuid with ksuid

---
 package.json                              |  1 -
 packages/gnarly-core/src/Blockstream.ts   |  4 ++--
 packages/gnarly-core/src/ourbit/Ourbit.ts |  7 +++----
 packages/gnarly-core/src/utils.ts         |  7 +++++--
 packages/gnarly-core/test/Ourbit.spec.ts  | 13 +++++++------
 packages/gnarly-core/test/utils.spec.ts   |  9 +++++----
 yarn.lock                                 |  6 ------
 7 files changed, 22 insertions(+), 25 deletions(-)

diff --git a/package.json b/package.json
index c1180ea..a57e2cc 100644
--- a/package.json
+++ b/package.json
@@ -18,7 +18,6 @@
   "devDependencies": {
     "@types/mocha": "^2.2.48",
     "@types/node": "^9.4.0",
-    "@types/uuid": "^3.4.3",
     "coveralls": "^3.0.2",
     "lcov-result-merger": "^3.1.0",
     "lerna": "^3.0.3",
diff --git a/packages/gnarly-core/src/Blockstream.ts b/packages/gnarly-core/src/Blockstream.ts
index 2b10e91..52c376a 100644
--- a/packages/gnarly-core/src/Blockstream.ts
+++ b/packages/gnarly-core/src/Blockstream.ts
@@ -9,7 +9,6 @@ import {
 } from 'ethereumjs-blockstream'
 import 'isomorphic-fetch'
 import PQueue = require('p-queue')
-import uuid = require('uuid')
 
 import { IJSONBlock } from './models/Block'
 import { IJSONLog } from './models/Log'
@@ -17,6 +16,7 @@ import { IJSONLog } from './models/Log'
 import {
   timeout,
   toBN,
+  uuid,
 } from './utils'
 
 import { globalState } from './globalstate'
@@ -163,7 +163,7 @@ class BlockStream {
       )
 
       await this.processTransaction(
-        uuid.v4(),
+        uuid(),
         this.onNewBlock(block, this.syncing),
         {
           blockHash: block.hash,
diff --git a/packages/gnarly-core/src/ourbit/Ourbit.ts b/packages/gnarly-core/src/ourbit/Ourbit.ts
index c656db3..346d0c4 100644
--- a/packages/gnarly-core/src/ourbit/Ourbit.ts
+++ b/packages/gnarly-core/src/ourbit/Ourbit.ts
@@ -6,11 +6,10 @@ import {
   observe,
   unobserve,
 } from '@xlnt/fast-json-patch'
-import uuid = require('uuid')
 
 import { globalState } from '../globalstate'
 import { ReducerContext } from '../reducer'
-import { invertPatch, operationsOfPatches, toOperation } from '../utils'
+import { invertPatch, operationsOfPatches, toOperation, uuid } from '../utils'
 import {
   IOperation,
   IPatch,
@@ -67,7 +66,7 @@ class Ourbit {
     // watch for patches to the memory state
     const observer = observe(this.targetState, (ops) => {
       patches.push({
-        id: uuid.v4(),
+        id: uuid(),
         operations: ops.map((op) => ({
           ...op,
           volatile: false,
@@ -84,7 +83,7 @@ class Ourbit {
     // collect any operations that are directly emitted
     this.context.setOpCollector((op: IOperation) => {
       patches.push({
-        id: uuid.v4(),
+        id: uuid(),
         operations: [op],
         reason: this.context.getCurrentReason(),
       })
diff --git a/packages/gnarly-core/src/utils.ts b/packages/gnarly-core/src/utils.ts
index 27b33b1..7c51818 100644
--- a/packages/gnarly-core/src/utils.ts
+++ b/packages/gnarly-core/src/utils.ts
@@ -1,10 +1,10 @@
 import { Operation } from '@xlnt/fast-json-patch'
 import BN = require('bn.js')
+import KSUID = require('ksuid')
 import _ = require('lodash')
 import memoize from 'moize'
 import numberToBN = require('number-to-bn')
 import pMap = require('p-map')
-import uuid = require('uuid')
 import web3Utils = require('web3-utils')
 
 import IABIItem, { IABIItemInput } from './models/ABIItem'
@@ -16,6 +16,9 @@ import {
 
 const API_CACHE_MAX_AGE = 1000
 
+// shrugs: I feel like using the sync randomness here isn't really a big deal, but we'll see
+export const uuid = () => KSUID.randomSync().string
+
 export const cacheApiRequest = (fn) => memoize(fn, {
   isPromise: true,
   maxAge: API_CACHE_MAX_AGE,
@@ -123,7 +126,7 @@ export const appendTo = (
   value: any,
 ): IOperation => {
   // forcefully add uuid to value
-  value.uuid = uuid.v4()
+  value.uuid = uuid()
   // for now, typeStores interpret an add operation without an index
   // as a normal sort of insert
   // so there's actually nothing special to do here
diff --git a/packages/gnarly-core/test/Ourbit.spec.ts b/packages/gnarly-core/test/Ourbit.spec.ts
index ceedc2b..f892946 100644
--- a/packages/gnarly-core/test/Ourbit.spec.ts
+++ b/packages/gnarly-core/test/Ourbit.spec.ts
@@ -1,7 +1,6 @@
 import chai = require('chai')
 import 'mocha'
 
-import uuid = require('uuid')
 import { globalState } from '../src/globalstate'
 import * as utils from '../src/utils'
 
@@ -20,6 +19,8 @@ const TEST_KEY = 'test'
 const TEST_REASON = 'TEST_REASON'
 const TEST_META = {}
 
+const TEST_UUID = utils.uuid()
+
 describe('Ourbit', () => {
   let ourbit: Ourbit = null
 
@@ -35,7 +36,7 @@ describe('Ourbit', () => {
   }
 
   beforeEach(() => {
-    sandbox.on(uuid, 'v4', () => 'uuid')
+    sandbox.on(utils, TEST_UUID, () => TEST_UUID)
     sandbox.on(globalState, [
       'setPatchGenerator',
       'setOpCollector',
@@ -46,7 +47,7 @@ describe('Ourbit', () => {
       id: '0x1',
       blockHash: '0x1',
       patches: [{
-        id: 'uuid',
+        id: TEST_UUID,
         reason: undefined,
         operations: [{
           op: 'add',
@@ -104,7 +105,7 @@ describe('Ourbit', () => {
 
   it('should allow manual collection', async () => {
     tx.patches.push({
-      id: 'uuid',
+      id: TEST_UUID,
       reason: undefined,
       operations: [{
         op: 'replace',
@@ -130,12 +131,12 @@ describe('Ourbit', () => {
   it('should accept volatile operations', async () => {
     targetState.domain = { array: [] }
     tx.patches.push({
-      id: 'uuid',
+      id: TEST_UUID,
       reason: undefined,
       operations: [{
         op: 'add',
         path: '/domain/uuid',
-        value: { uuid: 'uuid', value: 'value' },
+        value: { uuid: TEST_UUID, value: 'value' },
         volatile: true,
       }],
     })
diff --git a/packages/gnarly-core/test/utils.spec.ts b/packages/gnarly-core/test/utils.spec.ts
index 2d00e3b..7234336 100644
--- a/packages/gnarly-core/test/utils.spec.ts
+++ b/packages/gnarly-core/test/utils.spec.ts
@@ -1,6 +1,5 @@
 import chai = require('chai')
 import 'mocha'
-import uuid = require('uuid')
 
 import { IABIItemInput } from '../src'
 
@@ -12,6 +11,8 @@ const should = chai
   .use(require('chai-spies'))
   .should()
 
+const TEST_UUID = utils.uuid()
+
 const TRANSFER_ABI: IABIItemInput = {
   anonymous: false,
   inputs: [
@@ -25,7 +26,7 @@ const TRANSFER_ABI: IABIItemInput = {
 
 describe('utils', function () {
   before(function () {
-    chai.spy.on(uuid, 'v4', () => 'uuid')
+    chai.spy.on(utils, 'uuid', () => TEST_UUID)
   })
 
   after(function () {
@@ -195,9 +196,9 @@ describe('utils', function () {
     it('generates a valid op', async function () {
       const op = utils.appendTo('domain', { test: true })
       op.op.should.equal('add')
-      op.path.should.equal('/domain/uuid')
+      op.path.should.equal(`/domain/${TEST_UUID}`)
       op.value.should.deep.equal({
-        uuid: 'uuid',
+        uuid: TEST_UUID,
         test: true,
       })
       op.volatile.should.equal(true)
diff --git a/yarn.lock b/yarn.lock
index 689e14e..bc7b2b2 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -758,12 +758,6 @@
     "@types/pouchdb-node" "*"
     "@types/pouchdb-replication" "*"
 
-"@types/uuid@^3.4.3":
-  version "3.4.3"
-  resolved "https://registry.yarnpkg.com/@types/uuid/-/uuid-3.4.3.tgz#121ace265f5569ce40f4f6d0ff78a338c732a754"
-  dependencies:
-    "@types/node" "*"
-
 "@xlnt/fast-json-patch@^2.0.8":
   version "2.0.8"
   resolved "https://registry.yarnpkg.com/@xlnt/fast-json-patch/-/fast-json-patch-2.0.8.tgz#f7fd252ec58213696e309397ef7a337dad94aaa4"

From 0af001bd389bb993a54a8869db0b96528d3007f3 Mon Sep 17 00:00:00 2001
From: Matt Condon <mattgcondon@gmail.com>
Date: Mon, 13 Aug 2018 13:28:22 -0700
Subject: [PATCH 05/28] refactor: switch to ksuid which can be lixcographically
 sorted

---
 packages/gnarly-core/test/Blockstream.spec.ts | 4 ++++
 packages/gnarly-core/test/Ourbit.spec.ts      | 4 ++--
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/packages/gnarly-core/test/Blockstream.spec.ts b/packages/gnarly-core/test/Blockstream.spec.ts
index 64c0e87..0912d18 100644
--- a/packages/gnarly-core/test/Blockstream.spec.ts
+++ b/packages/gnarly-core/test/Blockstream.spec.ts
@@ -275,5 +275,9 @@ describe('Blockstream', function () {
         )
       })
     })
+
+    context('when presented with hella blocks', function () {
+      it('should throttle to queue limit')
+    })
   })
 })
diff --git a/packages/gnarly-core/test/Ourbit.spec.ts b/packages/gnarly-core/test/Ourbit.spec.ts
index f892946..524eea1 100644
--- a/packages/gnarly-core/test/Ourbit.spec.ts
+++ b/packages/gnarly-core/test/Ourbit.spec.ts
@@ -36,7 +36,7 @@ describe('Ourbit', () => {
   }
 
   beforeEach(() => {
-    sandbox.on(utils, TEST_UUID, () => TEST_UUID)
+    sandbox.on(utils, 'uuid', () => TEST_UUID)
     sandbox.on(globalState, [
       'setPatchGenerator',
       'setOpCollector',
@@ -135,7 +135,7 @@ describe('Ourbit', () => {
       reason: undefined,
       operations: [{
         op: 'add',
-        path: '/domain/uuid',
+        path: `/domain/${TEST_UUID}`,
         value: { uuid: TEST_UUID, value: 'value' },
         volatile: true,
       }],

From 596d32013ca81b0005db2785788bb37fcc0012a9 Mon Sep 17 00:00:00 2001
From: Matt Condon <mattgcondon@gmail.com>
Date: Mon, 13 Aug 2018 14:13:38 -0700
Subject: [PATCH 06/28] feat: pouchdb implementation compiles and existing
 gnarly-bin works under manual test

---
 packages/gnarly-core/src/Blockstream.ts       |  5 +-
 packages/gnarly-core/src/ourbit/Ourbit.ts     |  2 +-
 .../src/stores/IPersistInterface.ts           |  2 +-
 packages/gnarly-core/src/stores/pouchdb.ts    | 61 +++++++++++++++----
 packages/gnarly-core/src/stores/sequelize.ts  |  4 +-
 5 files changed, 57 insertions(+), 17 deletions(-)

diff --git a/packages/gnarly-core/src/Blockstream.ts b/packages/gnarly-core/src/Blockstream.ts
index 52c376a..c399089 100644
--- a/packages/gnarly-core/src/Blockstream.ts
+++ b/packages/gnarly-core/src/Blockstream.ts
@@ -132,7 +132,10 @@ class BlockStream {
   }
 
   public stop = async () => {
-    this.unsubscribeFromNewBlocks()
+    if (this.unsubscribeFromNewBlocks) {
+      this.unsubscribeFromNewBlocks()
+    }
+
     if (this.streamer) {
       this.streamer.unsubscribeFromOnBlockAdded(this.onBlockAddedSubscriptionToken)
       this.streamer.unsubscribeFromOnBlockRemoved(this.onBlockRemovedSubscriptionToken)
diff --git a/packages/gnarly-core/src/ourbit/Ourbit.ts b/packages/gnarly-core/src/ourbit/Ourbit.ts
index 346d0c4..c320ec1 100644
--- a/packages/gnarly-core/src/ourbit/Ourbit.ts
+++ b/packages/gnarly-core/src/ourbit/Ourbit.ts
@@ -162,7 +162,7 @@ class Ourbit {
     // apply to store (mutable and volatile)
     await this.notifyPatches(tx.id, inversePatches)
     // delete transaction
-    await globalState.store.deleteTransaction(this.key, tx)
+    await globalState.store.deleteTransaction(this.key, tx.id)
   }
 }
 
diff --git a/packages/gnarly-core/src/stores/IPersistInterface.ts b/packages/gnarly-core/src/stores/IPersistInterface.ts
index bbcbf3b..7cbe9ea 100644
--- a/packages/gnarly-core/src/stores/IPersistInterface.ts
+++ b/packages/gnarly-core/src/stores/IPersistInterface.ts
@@ -17,7 +17,7 @@ export interface IPersistInterface {
   // transaction CRUD
   getAllTransactionsTo (reducerKey: string, toTxId: null | string): Promise<any>
   getLatestTransaction (reducerKey: string): Promise<ITransaction>
-  deleteTransaction (reducerKey: string, tx: ITransaction): Promise<any>
+  deleteTransaction (reducerKey: string, txId: string): Promise<any>
   saveTransaction (reducerKey: string, tx: ITransaction): Promise<any>
   getTransaction (reducerKey: string, txId: string): Promise<ITransaction>
   getTransactionByBlockHash (reducerKey: string, blockHash: string): Promise<ITransaction>
diff --git a/packages/gnarly-core/src/stores/pouchdb.ts b/packages/gnarly-core/src/stores/pouchdb.ts
index b176ba4..6e22e15 100644
--- a/packages/gnarly-core/src/stores/pouchdb.ts
+++ b/packages/gnarly-core/src/stores/pouchdb.ts
@@ -18,12 +18,17 @@ const GNARLY_DB_PREFIX = '--gnarly'
 
 const sortByHexProp = (prop: string) => (a, b) => toBN(a[prop]).sub(toBN(b[prop])).toNumber()
 const toJSONBlock = (block) => block as IJSONBlock
+const toTransaction = (tx) => tx as ITransaction
 
 const deleteWithQuery = async (db: PouchDB.Database, selector: object) => {
   const res = await db.find({ selector })
   await db.bulkDocs(res.docs.map((d) => ({ ...d, _deleted: true })))
 }
 
+const deleteById = async (db: PouchDB.Database, id: string) => {
+  await db.remove(await db.get(id))
+}
+
 // // https://pouchdb.com/api.html#batch_fetch
 // const prefix = (p: string) => ({
 //   startkey: `${p}`,
@@ -77,8 +82,9 @@ export default class PouchDBPersistInterface implements IPersistInterface {
   public saveReducer = async (reducerKey: string): Promise<any> => {
     await this.reducers.putIfNotExists({ _id: reducerKey })
   }
+
   public deleteReducer = async (reducerKey: string): Promise<any> => {
-    await this.reducers.remove(await this.reducers.get(reducerKey))
+    await deleteById(this.reducers, reducerKey)
   }
 
   // blockstream CRUD
@@ -87,7 +93,7 @@ export default class PouchDBPersistInterface implements IPersistInterface {
     return res.rows
       .map((r) => r.doc)
       .map(toJSONBlock)
-      .sort(sortByHexProp('number'))
+      .sort(sortByHexProp('number')) // @TODO might be able to replace with ksuid allDocs
   }
 
   public saveHistoricalBlock = async (reducerKey: string, blockRetention: number, block: IJSONBlock): Promise<any> => {
@@ -102,9 +108,7 @@ export default class PouchDBPersistInterface implements IPersistInterface {
   }
 
   public deleteHistoricalBlock = async (reducerKey: string, blockHash: string): Promise<any> => {
-    await deleteWithQuery(this.historicalBlocks.get(reducerKey), {
-      _id: { $eq: blockHash },
-    })
+    await deleteById(this.historicalBlocks.get(reducerKey), blockHash)
   }
 
   public deleteHistoricalBlocks = async (reducerKey: string): Promise<any> => {
@@ -113,22 +117,55 @@ export default class PouchDBPersistInterface implements IPersistInterface {
 
   // transaction CRUD
   public getAllTransactionsTo = async (reducerKey: string, toTxId: null | string): Promise<any> => {
-    //
+    const res = await this.transactions.get(reducerKey).allDocs({
+      include_docs: true,
+      endkey: toTxId,
+    })
+
+    return res.rows
+      .map((r) => r.doc)
+      .map(toJSONBlock)
   }
+
   public getLatestTransaction = async (reducerKey: string): Promise<ITransaction> => {
-    //
+    const res = await this.transactions.get(reducerKey).allDocs({
+      include_docs: true,
+      limit: 1,
+    })
+
+    if (!res.rows.length) {
+      throw new Error(`Could not get latest transaction in ${reducerKey}`)
+    }
+
+    return toTransaction(res.rows[0].doc)
   }
-  public deleteTransaction = async (reducerKey: string, tx: ITransaction): Promise<any> => {
-    //
+
+  public deleteTransaction = async (reducerKey: string, txId: string): Promise<any> => {
+    await deleteById(this.transactions.get(reducerKey), txId)
   }
+
   public saveTransaction = async (reducerKey: string, tx: ITransaction): Promise<any> => {
-    //
+    await this.transactions.get(reducerKey).put({
+      _id: tx.id,
+      ...tx,
+    })
   }
+
   public getTransaction = async (reducerKey: string, txId: string): Promise<ITransaction> => {
-    //
+    const res = await this.transactions.get(reducerKey).get(txId)
+    return toTransaction(res)
   }
+
   public getTransactionByBlockHash = async (reducerKey: string, blockHash: string): Promise<ITransaction> => {
-    //
+    const res = await this.transactions.get(reducerKey).find({
+      selector: { blockHash: { $eq: blockHash } },
+    })
+
+    if (!res.docs.length) {
+      throw new Error(`Cound not find transaction in ${reducerKey} by blockHash ${blockHash}`)
+    }
+
+    return toTransaction(res.docs[0])
   }
 
   // setup & setdown
diff --git a/packages/gnarly-core/src/stores/sequelize.ts b/packages/gnarly-core/src/stores/sequelize.ts
index 016e980..1fd5489 100644
--- a/packages/gnarly-core/src/stores/sequelize.ts
+++ b/packages/gnarly-core/src/stores/sequelize.ts
@@ -302,10 +302,10 @@ export default class SequelizePersistInterface implements IPersistInterface {
     ))
   }
 
-  public deleteTransaction = async (reducerKey: string, tx: ITransaction) => {
+  public deleteTransaction = async (reducerKey: string, txId: string) => {
     // @TODO does this delete patches, etc as well? seems like not, by default
     return this.Transaction.destroy({
-      where: { id: { [this.Sequelize.Op.eq]: tx.id } },
+      where: { id: { [this.Sequelize.Op.eq]: txId } },
       include: [{
         model: this.Reducer,
         where: { id: { [this.Sequelize.Op.eq]: reducerKey } },

From 28c61b78d936b7d2454ae47c0ef750e0d2842c1a Mon Sep 17 00:00:00 2001
From: Matt Condon <mattgcondon@gmail.com>
Date: Mon, 13 Aug 2018 18:31:39 -0700
Subject: [PATCH 07/28] feat: implement pouchdb store

---
 packages/gnarly-bin/src/index.ts              |   7 +-
 packages/gnarly-core/package.json             |   1 -
 packages/gnarly-core/src/Blockstream.ts       |   1 +
 packages/gnarly-core/src/ReducerRunner.ts     |   7 +-
 packages/gnarly-core/src/ourbit/Ourbit.ts     |   3 +-
 packages/gnarly-core/src/ourbit/types.ts      |  12 +-
 packages/gnarly-core/src/stores/index.ts      |   4 +
 packages/gnarly-core/src/stores/pouchdb.ts    | 181 +++++++++++++-----
 packages/gnarly-core/src/stores/sequelize.ts  |   1 +
 .../src/models/sequelize.ts                   |   2 +-
 .../gnarly-reducer-block-meta/src/reducer.ts  |   2 -
 .../src/models/sequelize.ts                   |   2 +-
 .../src/models/sequelize.ts                   |   4 +-
 .../src/models/sequelize.ts                   |   2 +-
 14 files changed, 161 insertions(+), 68 deletions(-)

diff --git a/packages/gnarly-bin/src/index.ts b/packages/gnarly-bin/src/index.ts
index dcb19e7..d12e292 100644
--- a/packages/gnarly-bin/src/index.ts
+++ b/packages/gnarly-bin/src/index.ts
@@ -10,6 +10,7 @@ const debug = makeDebug('gnarly')
 import Sequelize = require('sequelize')
 
 import Gnarly, {
+  PouchDBPersistInterface,
   SequelizePersistInterface,
   Web3Api,
 } from '@xlnt/gnarly-core'
@@ -96,10 +97,8 @@ const main = async () => {
     eventsReducer,
   ]
 
-  const store = new SequelizePersistInterface(
-    Sequelize,
-    sequelize,
-  )
+  const store = new PouchDBPersistInterface('http://127.0.0.1:5984')
+  // const store = new SequelizePersistInterface(Sequelize, sequelize)
 
   const ingestApi = new Web3Api(nodeEndpoint)
 
diff --git a/packages/gnarly-core/package.json b/packages/gnarly-core/package.json
index 9c256aa..990693e 100644
--- a/packages/gnarly-core/package.json
+++ b/packages/gnarly-core/package.json
@@ -43,7 +43,6 @@
     "p-retry": "^2.0.0",
     "pg": "^7.4.1",
     "pouchdb": "^7.0.0",
-    "pouchdb-all-dbs": "^1.0.2",
     "pouchdb-find": "^7.0.0",
     "pouchdb-upsert": "^2.2.0",
     "sequelize": "^4.35.2",
diff --git a/packages/gnarly-core/src/Blockstream.ts b/packages/gnarly-core/src/Blockstream.ts
index c399089..51de415 100644
--- a/packages/gnarly-core/src/Blockstream.ts
+++ b/packages/gnarly-core/src/Blockstream.ts
@@ -170,6 +170,7 @@ class BlockStream {
         this.onNewBlock(block, this.syncing),
         {
           blockHash: block.hash,
+          blockNumber: block.number,
         },
       )
 
diff --git a/packages/gnarly-core/src/ReducerRunner.ts b/packages/gnarly-core/src/ReducerRunner.ts
index 1fef8f4..3651924 100644
--- a/packages/gnarly-core/src/ReducerRunner.ts
+++ b/packages/gnarly-core/src/ReducerRunner.ts
@@ -14,6 +14,7 @@ import {
   SetupFn,
   TypeStorer,
 } from './typeStore'
+import { toBN } from './utils'
 
 // TODO: should be moved to bin
 const BLOCK_RETENTION = 100
@@ -79,7 +80,11 @@ export class ReducerRunner {
                 mostRecentHistoricalBlock.hash,
                 latestTransaction.blockHash,
                 `We have a latestTransaction ${latestTransaction.id} with blockHash ${latestTransaction.blockHash}
-                but it doesn't match the most recent historical block ${mostRecentHistoricalBlock.hash}!`,
+                but it doesn't match the most recent historical block ${mostRecentHistoricalBlock.hash}!
+
+                The historical chain is:
+
+                ${historicalBlocks.map((b) => `${toBN(b.number).toString()} — ${b.hash}`).join('\n')}`,
               )
 
               // let's re-hydrate local state by replaying transactions
diff --git a/packages/gnarly-core/src/ourbit/Ourbit.ts b/packages/gnarly-core/src/ourbit/Ourbit.ts
index c320ec1..6383e07 100644
--- a/packages/gnarly-core/src/ourbit/Ourbit.ts
+++ b/packages/gnarly-core/src/ourbit/Ourbit.ts
@@ -59,7 +59,7 @@ class Ourbit {
   public processTransaction = async (
     txId: string,
     fn: () => Promise<void>,
-    extra: ITxExtra = { blockHash: '' },
+    extra: ITxExtra,
   ) => {
     const patches: IPatch[] = []
 
@@ -127,6 +127,7 @@ class Ourbit {
         totalPatches += tx.patches.length
         this.debug('[applyPatch] %s %d', tx.id, tx.patches.length)
         const allOperations = operationsOfPatches(tx.patches)
+
         applyPatch(this.targetState, allOperations.map(toOperation))
       })
     }
diff --git a/packages/gnarly-core/src/ourbit/types.ts b/packages/gnarly-core/src/ourbit/types.ts
index c5c9516..4cb9a7a 100644
--- a/packages/gnarly-core/src/ourbit/types.ts
+++ b/packages/gnarly-core/src/ourbit/types.ts
@@ -40,20 +40,22 @@ export interface IPatch {
 }
 
 /**
- * A transaction is a set of patches.
+ * A transaction is a set of patches with a unique id.
  */
-export interface ITransaction {
+export interface IBasicTransaction {
   id: string
-  blockHash: string,
   patches: IPatch[]
 }
 
-export type OpCollector = (op: IOperation) => void
-
 export interface ITxExtra {
   blockHash: string
+  blockNumber: string
 }
 
+export interface ITransaction extends IBasicTransaction, ITxExtra {}
+
+export type OpCollector = (op: IOperation) => void
+
 /**
  * This function accept patches and persists them to a store.
  */
diff --git a/packages/gnarly-core/src/stores/index.ts b/packages/gnarly-core/src/stores/index.ts
index e5443cb..d1c365a 100644
--- a/packages/gnarly-core/src/stores/index.ts
+++ b/packages/gnarly-core/src/stores/index.ts
@@ -3,6 +3,10 @@ export {
   makeSequelizeModels,
 } from './sequelize'
 
+export {
+  default as PouchDBPersistInterface,
+} from './pouchdb'
+
 export {
   IPersistInterface,
 } from './IPersistInterface'
diff --git a/packages/gnarly-core/src/stores/pouchdb.ts b/packages/gnarly-core/src/stores/pouchdb.ts
index 6e22e15..db04654 100644
--- a/packages/gnarly-core/src/stores/pouchdb.ts
+++ b/packages/gnarly-core/src/stores/pouchdb.ts
@@ -1,30 +1,66 @@
 /* tslint:disable max-classes-per-file */
 
 import PouchDB = require('pouchdb')
-require('pouchdb-all-dbs')(PouchDB)
 PouchDB.plugin(require('pouchdb-upsert'))
 PouchDB.plugin(require('pouchdb-find'))
 
+import KSUID = require('ksuid')
+import identity = require('lodash.identity')
+
 import { IJSONBlock } from '../models/Block'
 import {
   ITransaction,
 } from '../ourbit/types'
 import { IPersistInterface } from '../stores'
-import { forEach, toBN } from '../utils'
+import { toBN } from '../utils'
+
+async function* batch (
+  db: PouchDB.Database,
+  query: object = {},
+  batchSize = 1000,
+  mapper: (v: any) => any = identity,
+) {
+  let totalRows = 1 // should be 0 at first, but we want to trigger the first iteration
+  let lastId
+
+  while (totalRows > 0) {
+    const opts = {
+      ...query,
+      startkey: lastId,
+      skip: 1,
+      limit: batchSize,
+      include_docs: true,
+    }
+
+    const res = await db.allDocs(opts)
+    const gots = mapper(res.rows)
+    yield gots
+
+    totalRows = gots.total_rows
+    if (totalRows === 0) { break }
+    lastId = res.rows[res.rows.length - 1].id
+  }
+}
 
 // all databases should have --gnarly prefix so we can delete them and not destroy any user data
 // that might be sitting around
 const GNARLY_DB_PREFIX = '--gnarly'
 
 const sortByHexProp = (prop: string) => (a, b) => toBN(a[prop]).sub(toBN(b[prop])).toNumber()
+const sortById = (a, b) => KSUID.parse(a._id).compare(KSUID.parse(b._id))
 const toJSONBlock = (block) => block as IJSONBlock
 const toTransaction = (tx) => tx as ITransaction
+const nonVolatile = (t) => !t.volatile
 
-const deleteWithQuery = async (db: PouchDB.Database, selector: object) => {
-  const res = await db.find({ selector })
-  await db.bulkDocs(res.docs.map((d) => ({ ...d, _deleted: true })))
+const destroyDb = async (db: PouchDB.Database) => {
+  await db.destroy()
 }
 
+// const deleteWithQuery = async (db: PouchDB.Database, selector: object) => {
+//   const res = await db.find({ selector })
+//   await db.bulkDocs(res.docs.map((d) => ({ ...d, _deleted: true })))
+// }
+
 const deleteById = async (db: PouchDB.Database, id: string) => {
   await db.remove(await db.get(id))
 }
@@ -41,41 +77,49 @@ const deleteById = async (db: PouchDB.Database, id: string) => {
 
 const reducerDb = (e: string) => `${e}/${GNARLY_DB_PREFIX}-reducers`
 const historicalBlocksDb = (e: string) => (key: string): PouchDB.Database =>
-  new PouchDB(`${e}/${GNARLY_DB_PREFIX}-${key}-historical-blocks`)
+  new PouchDB(`${e}/${GNARLY_DB_PREFIX}-historicalblocks-${key}`)
 const transactionsDb = (e: string) => (key: string): PouchDB.Database =>
-  new PouchDB(`${e}/${GNARLY_DB_PREFIX}-${key}-transactions`)
+  new PouchDB(`${e}/${GNARLY_DB_PREFIX}-transactions-${key}`)
 
 class DyanmicDict<T> {
   private cache: { [_: string]: T } = {}
 
   constructor (
-    private dbGenerator: (key: string) => T,
+    private generator: (key: string) => T,
+    private resetFn: (thing: T) => Promise<void> = identity,
+    private resetOnFirstInitialization: boolean = false,
   ) {
   }
 
-  public get = (key: string) => {
+  public get = async (key: string) => {
     if (this.cache[key]) { return this.cache[key] }
 
-    this.cache[key] = this.dbGenerator(key)
+    if (this.resetOnFirstInitialization) {
+      await this.resetFn(this.generator(key))
+    }
+
+    this.cache[key] = this.generator(key)
     return this.cache[key]
   }
+
+  public invalidate = (key: string) => {
+    this.cache[key] = undefined
+  }
+
+  public flush = () => {
+    this.cache = {}
+  }
 }
 
 export default class PouchDBPersistInterface implements IPersistInterface {
   private reducers: PouchDB.Database
   private historicalBlocks: DyanmicDict<PouchDB.Database>
   private transactions: DyanmicDict<PouchDB.Database>
+  private didSetDown: boolean = false
 
   constructor (
-    dbEndpoint: string,
+    private dbEndpoint: string,
   ) {
-    try {
-      this.reducers = new PouchDB(reducerDb(dbEndpoint))
-      this.historicalBlocks = new DyanmicDict(historicalBlocksDb(dbEndpoint))
-      this.transactions = new DyanmicDict(transactionsDb(dbEndpoint))
-    } catch (error) {
-      throw new Error(`Instantiating PouchDBs failed: ${error.stack}`)
-    }
   }
 
   // reducer CRUD
@@ -89,75 +133,101 @@ export default class PouchDBPersistInterface implements IPersistInterface {
 
   // blockstream CRUD
   public getHistoricalBlocks = async (reducerKey: string): Promise<IJSONBlock[]> => {
-    const res = await this.historicalBlocks.get(reducerKey).allDocs()
-    return res.rows
+    const db = await this.historicalBlocks.get(reducerKey)
+    const res = await db.allDocs({ include_docs: true, descending: true })
+
+    const blocks = res.rows
       .map((r) => r.doc)
       .map(toJSONBlock)
-      .sort(sortByHexProp('number')) // @TODO might be able to replace with ksuid allDocs
+
+    blocks.sort(sortByHexProp('number')) // @TODO might be able to replace with ksuid allDocs
+
+    return blocks
   }
 
   public saveHistoricalBlock = async (reducerKey: string, blockRetention: number, block: IJSONBlock): Promise<any> => {
-    await this.historicalBlocks
-      .get(reducerKey)
-      .putIfNotExists({
-        _id: block.hash,
-        ...block,
+    const db = await this.historicalBlocks.get(reducerKey)
+    await db.putIfNotExists({
+      _id: block.hash,
+      hash: block.hash,
+      parentHash: block.parentHash,
+      number: block.number,
+      // ^ manually filter properties we care about from block
     })
 
     // @TODO (shrugs) - delete blocks after blockRetention for this reducer
   }
 
   public deleteHistoricalBlock = async (reducerKey: string, blockHash: string): Promise<any> => {
-    await deleteById(this.historicalBlocks.get(reducerKey), blockHash)
+    await deleteById(await this.historicalBlocks.get(reducerKey), blockHash)
   }
 
   public deleteHistoricalBlocks = async (reducerKey: string): Promise<any> => {
-    await this.historicalBlocks.get(reducerKey).destroy()
+    const db = await this.historicalBlocks.get(reducerKey)
+    await db.destroy()
+    this.historicalBlocks.invalidate(reducerKey)
   }
 
   // transaction CRUD
   public getAllTransactionsTo = async (reducerKey: string, toTxId: null | string): Promise<any> => {
-    const res = await this.transactions.get(reducerKey).allDocs({
-      include_docs: true,
-      endkey: toTxId,
-    })
-
-    return res.rows
-      .map((r) => r.doc)
-      .map(toJSONBlock)
+    const db = await this.transactions.get(reducerKey)
+
+    return batch(db, { endkey: toTxId }, 1000, (rows) =>
+      rows
+        .map((r) => r.doc)
+        .map(toTransaction)
+        .map((tx: ITransaction) => ({
+          ...tx,
+          patches: tx.patches.map((p) => ({
+            ...p,
+            operations: p.operations.filter(nonVolatile),
+          })),
+        })),
+        // ^ in memory filter against volatile operations
+    )
   }
 
   public getLatestTransaction = async (reducerKey: string): Promise<ITransaction> => {
-    const res = await this.transactions.get(reducerKey).allDocs({
+    // in pouch, our ksuids aren't sorting tot he specificity we want
+    // so pull the last ~10 and then sort by blocknumber
+    const db = await this.transactions.get(reducerKey)
+    const res = await db.allDocs({
       include_docs: true,
-      limit: 1,
+      limit: 10,
+      descending: true,
     })
 
     if (!res.rows.length) {
       throw new Error(`Could not get latest transaction in ${reducerKey}`)
     }
 
-    return toTransaction(res.rows[0].doc)
+    const txs = res.rows.map((r) => r.doc).map(toTransaction)
+    txs.sort(sortByHexProp('blockNumber'))
+
+    return txs[txs.length - 1]
   }
 
   public deleteTransaction = async (reducerKey: string, txId: string): Promise<any> => {
-    await deleteById(this.transactions.get(reducerKey), txId)
+    await deleteById(await this.transactions.get(reducerKey), txId)
   }
 
   public saveTransaction = async (reducerKey: string, tx: ITransaction): Promise<any> => {
-    await this.transactions.get(reducerKey).put({
+    const db = await this.transactions.get(reducerKey)
+    await db.put({
       _id: tx.id,
       ...tx,
     })
   }
 
   public getTransaction = async (reducerKey: string, txId: string): Promise<ITransaction> => {
-    const res = await this.transactions.get(reducerKey).get(txId)
+    const db = await this.transactions.get(reducerKey)
+    const res = await db.get(txId)
     return toTransaction(res)
   }
 
   public getTransactionByBlockHash = async (reducerKey: string, blockHash: string): Promise<ITransaction> => {
-    const res = await this.transactions.get(reducerKey).find({
+    const db = await this.transactions.get(reducerKey)
+    const res = await db.find({
       selector: { blockHash: { $eq: blockHash } },
     })
 
@@ -170,14 +240,27 @@ export default class PouchDBPersistInterface implements IPersistInterface {
 
   // setup & setdown
   public setup = async (): Promise<any> => {
-    // databases are implicitely created and schemaless, so this fn isn't really going to do anything
+    try {
+      if (this.didSetDown) {
+        await (new PouchDB(reducerDb(this.dbEndpoint))).destroy()
+      }
+      this.reducers = new PouchDB(reducerDb(this.dbEndpoint))
+      this.historicalBlocks = new DyanmicDict(historicalBlocksDb(this.dbEndpoint), destroyDb, this.didSetDown)
+      this.transactions = new DyanmicDict(transactionsDb(this.dbEndpoint), destroyDb, this.didSetDown)
+    } catch (error) {
+      throw new Error(`Instantiating PouchDBs failed: ${error.stack}`)
+    }
   }
 
   public setdown = async (): Promise<any> => {
-    const dbs = await PouchDB.allDbs()
-    await forEach(
-      dbs.filter((db) => db.startsWith(GNARLY_DB_PREFIX)),
-      async (db) => await (new PouchDB(db)).destroy(),
-    )
+    this.didSetDown = true
+
+    if (this.historicalBlocks) {
+      this.historicalBlocks.flush()
+    }
+
+    if (this.transactions) {
+      this.transactions.flush()
+    }
   }
 }
diff --git a/packages/gnarly-core/src/stores/sequelize.ts b/packages/gnarly-core/src/stores/sequelize.ts
index 1fd5489..22d7683 100644
--- a/packages/gnarly-core/src/stores/sequelize.ts
+++ b/packages/gnarly-core/src/stores/sequelize.ts
@@ -23,6 +23,7 @@ export const makeSequelizeModels = (
     id: { type: DataTypes.STRING, primaryKey: true },
     mid: { type: DataTypes.INTEGER, autoIncrement: true },
     blockHash: { type: DataTypes.STRING },
+    blockNumber: { type: DataTypes.STRING },
   }, {
     indexes: [
       { fields: ['blockHash'] },
diff --git a/packages/gnarly-reducer-block-meta/src/models/sequelize.ts b/packages/gnarly-reducer-block-meta/src/models/sequelize.ts
index 7c46c76..b60b076 100644
--- a/packages/gnarly-reducer-block-meta/src/models/sequelize.ts
+++ b/packages/gnarly-reducer-block-meta/src/models/sequelize.ts
@@ -40,7 +40,7 @@ const sequelizeModels = (
     ],
   })
 
-  Block.Patch = Block.belongsTo(Patch)
+  Block.Patch = Block.belongsTo(Patch, { constraints: false })
 
   return {
     Block,
diff --git a/packages/gnarly-reducer-block-meta/src/reducer.ts b/packages/gnarly-reducer-block-meta/src/reducer.ts
index 0d12b08..1553b45 100644
--- a/packages/gnarly-reducer-block-meta/src/reducer.ts
+++ b/packages/gnarly-reducer-block-meta/src/reducer.ts
@@ -16,8 +16,6 @@ const makeReducer = (
     emitBlock: (block: Block) => {
       emit(appendTo('blocks', {
         hash: block.hash,
-        transactionId: block.hash,
-        // ^ assumes that gnarly.transactionId === block.hash
         number: block.number.toString(),
         unsafeNumber: block.number.toString(),
         parentHash: block.parentHash,
diff --git a/packages/gnarly-reducer-erc20/src/models/sequelize.ts b/packages/gnarly-reducer-erc20/src/models/sequelize.ts
index 4b30c96..b094fbe 100644
--- a/packages/gnarly-reducer-erc20/src/models/sequelize.ts
+++ b/packages/gnarly-reducer-erc20/src/models/sequelize.ts
@@ -26,7 +26,7 @@ const sequelizeModels = (Sequelize: any, sequelize: any) => {
     },
   )
 
-  ERC20Balances.belongsTo(Patch)
+  ERC20Balances.Patch = ERC20Balances.belongsTo(Patch, { constraints: false })
 
   return {
     ERC20Balances,
diff --git a/packages/gnarly-reducer-erc721/src/models/sequelize.ts b/packages/gnarly-reducer-erc721/src/models/sequelize.ts
index 5ae296b..78566d5 100644
--- a/packages/gnarly-reducer-erc721/src/models/sequelize.ts
+++ b/packages/gnarly-reducer-erc721/src/models/sequelize.ts
@@ -37,8 +37,8 @@ const sequelizeModels = (
     order: { type: DataTypes.INTEGER },
   })
 
-  ERC721Tokens.belongsTo(Patch)
-  ERC721TokenOwners.belongsTo(Patch)
+  ERC721Tokens.Patch = ERC721Tokens.belongsTo(Patch, { constraints: false })
+  ERC721TokenOwners.Patch = ERC721TokenOwners.belongsTo(Patch, { constraints: false })
 
   // token has many owners
   ERC721Tokens.hasMany(ERC721TokenOwners, {
diff --git a/packages/gnarly-reducer-events/src/models/sequelize.ts b/packages/gnarly-reducer-events/src/models/sequelize.ts
index 3ddbca1..65d0126 100644
--- a/packages/gnarly-reducer-events/src/models/sequelize.ts
+++ b/packages/gnarly-reducer-events/src/models/sequelize.ts
@@ -26,7 +26,7 @@ const sequelizeModels = (
     ],
   })
 
-  Events.Patch = Events.belongsTo(Patch)
+  Events.Patch = Events.belongsTo(Patch, { constraints: false })
 
   return {
     Events,

From 75c462ea9d0d46c49a814a7d2f37105fd419799c Mon Sep 17 00:00:00 2001
From: Matt Condon <mattgcondon@gmail.com>
Date: Mon, 20 Aug 2018 15:06:31 -0700
Subject: [PATCH 08/28] fix: minor fix for error formatting

---
 packages/gnarly-core/src/ReducerRunner.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/gnarly-core/src/ReducerRunner.ts b/packages/gnarly-core/src/ReducerRunner.ts
index 3651924..5bebad6 100644
--- a/packages/gnarly-core/src/ReducerRunner.ts
+++ b/packages/gnarly-core/src/ReducerRunner.ts
@@ -76,7 +76,7 @@ export class ReducerRunner {
             try {
               const mostRecentHistoricalBlock = historicalBlocks[historicalBlocks.length - 1]
 
-              assert.equal(
+              assert.strictEqual(
                 mostRecentHistoricalBlock.hash,
                 latestTransaction.blockHash,
                 `We have a latestTransaction ${latestTransaction.id} with blockHash ${latestTransaction.blockHash}
@@ -84,7 +84,7 @@ export class ReducerRunner {
 
                 The historical chain is:
 
-                ${historicalBlocks.map((b) => `${toBN(b.number).toString()} — ${b.hash}`).join('\n')}`,
+${historicalBlocks.map((b) => `${toBN(b.number).toString()} — ${b.hash}`).join('\n')}`,
               )
 
               // let's re-hydrate local state by replaying transactions

From 34a2739e05b0f95346c5d95b3015ef548ddb3625 Mon Sep 17 00:00:00 2001
From: Matt Condon <mattgcondon@gmail.com>
Date: Mon, 20 Aug 2018 18:20:11 -0700
Subject: [PATCH 09/28] checkpoint: test reducers and historical blocks

---
 .gitignore                                    |    1 +
 .travis.yml                                   |    4 +
 packages/gnarly-core/package.json             |    3 +-
 packages/gnarly-core/src/stores/pouchdb.ts    |   68 +-
 packages/gnarly-core/src/stores/sequelize.ts  |    3 +-
 .../gnarly-core/src/typeStore/Sequelize.ts    |    2 +-
 packages/gnarly-core/src/utils.ts             |    4 +-
 packages/gnarly-core/test/Blockstream.spec.ts |   24 +-
 packages/gnarly-core/test/Ourbit.spec.ts      |   26 +-
 .../test/mocks/MockPersistInterface.ts        |   10 +-
 .../gnarly-core/test/stores/AllStores.spec.ts |   47 +
 .../test/stores/PersistInterface.behavior.ts  |  216 ++
 packages/gnarly-core/test/utils/index.ts      |   27 +
 yarn.lock                                     | 2559 ++++++++++++++++-
 14 files changed, 2828 insertions(+), 166 deletions(-)
 create mode 100644 packages/gnarly-core/test/stores/AllStores.spec.ts
 create mode 100644 packages/gnarly-core/test/stores/PersistInterface.behavior.ts

diff --git a/.gitignore b/.gitignore
index 67dff6e..5ca885d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -40,3 +40,4 @@ lib
 .nyc_output
 lcov.info
 .coveralls.yml
+*.sqlite
diff --git a/.travis.yml b/.travis.yml
index 44c2855..c39d9b5 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,9 +7,13 @@ node_js:
 cache:
   directories:
   - node_modules
+services:
+  - postgresql
+  - couchdb
 matrix:
   fast_finish: true
 before_script:
+  - psql -c 'create database travis_ci_test;' -U postgres
   - lerna bootstrap
   - travis_retry yarn run build-ts
 after_success:
diff --git a/packages/gnarly-core/package.json b/packages/gnarly-core/package.json
index 990693e..8705906 100644
--- a/packages/gnarly-core/package.json
+++ b/packages/gnarly-core/package.json
@@ -34,8 +34,6 @@
     "ethereumjs-blockstream": "^3.1.0",
     "isomorphic-fetch": "^2.2.1",
     "ksuid": "^1.1.2",
-    "lodash.identity": "^3.0.0",
-    "lodash.isplainobject": "^4.0.6",
     "moize": "^5.3.1",
     "number-to-bn": "^1.7.0",
     "p-map": "^1.2.0",
@@ -64,6 +62,7 @@
     "concurrently": "^3.5.1",
     "mocha": "^5.0.4",
     "nyc": "^12.0.2",
+    "pouchdb-server": "^4.1.0",
     "rosie": "^2.0.1",
     "source-map-support": "^0.5.6",
     "ts-node": "^7.0.1",
diff --git a/packages/gnarly-core/src/stores/pouchdb.ts b/packages/gnarly-core/src/stores/pouchdb.ts
index db04654..74bbb74 100644
--- a/packages/gnarly-core/src/stores/pouchdb.ts
+++ b/packages/gnarly-core/src/stores/pouchdb.ts
@@ -4,16 +4,17 @@ import PouchDB = require('pouchdb')
 PouchDB.plugin(require('pouchdb-upsert'))
 PouchDB.plugin(require('pouchdb-find'))
 
-import KSUID = require('ksuid')
-import identity = require('lodash.identity')
+// import KSUID = require('ksuid')
+import { identity } from 'lodash'
 
 import { IJSONBlock } from '../models/Block'
 import {
   ITransaction,
 } from '../ourbit/types'
 import { IPersistInterface } from '../stores'
-import { toBN } from '../utils'
+import { forEach, toBN, uuid } from '../utils'
 
+// https://pouchdb.com/api.html#batch_fetch
 async function* batch (
   db: PouchDB.Database,
   query: object = {},
@@ -42,12 +43,12 @@ async function* batch (
   }
 }
 
-// all databases should have --gnarly prefix so we can delete them and not destroy any user data
+// all databases  have --gnarly prefix so we can delete them and not destroy any user data
 // that might be sitting around
 const GNARLY_DB_PREFIX = '--gnarly'
 
 const sortByHexProp = (prop: string) => (a, b) => toBN(a[prop]).sub(toBN(b[prop])).toNumber()
-const sortById = (a, b) => KSUID.parse(a._id).compare(KSUID.parse(b._id))
+// const sortById = (a, b) => KSUID.parse(a._id).compare(KSUID.parse(b._id))
 const toJSONBlock = (block) => block as IJSONBlock
 const toTransaction = (tx) => tx as ITransaction
 const nonVolatile = (t) => !t.volatile
@@ -56,36 +57,26 @@ const destroyDb = async (db: PouchDB.Database) => {
   await db.destroy()
 }
 
-// const deleteWithQuery = async (db: PouchDB.Database, selector: object) => {
-//   const res = await db.find({ selector })
-//   await db.bulkDocs(res.docs.map((d) => ({ ...d, _deleted: true })))
-// }
+const deleteWithQuery = async (db: PouchDB.Database, selector: object) => {
+  const res = await db.find({ selector })
+  await db.bulkDocs(res.docs.map((d) => ({ ...d, _deleted: true })))
+}
 
 const deleteById = async (db: PouchDB.Database, id: string) => {
   await db.remove(await db.get(id))
 }
 
-// // https://pouchdb.com/api.html#batch_fetch
-// const prefix = (p: string) => ({
-//   startkey: `${p}`,
-//   endkey: `${p}\ufff0`,
-// })
-
-// jsonpatch path is _id?
-// pouchdb relies heavily on unique identifiers that operate as the primary index
-// so our use of `mid` in postgres will complement this nicely
-
 const reducerDb = (e: string) => `${e}/${GNARLY_DB_PREFIX}-reducers`
-const historicalBlocksDb = (e: string) => (key: string): PouchDB.Database =>
+const historicalBlocksDb = (e: string) => async (key: string): Promise<PouchDB.Database> =>
   new PouchDB(`${e}/${GNARLY_DB_PREFIX}-historicalblocks-${key}`)
-const transactionsDb = (e: string) => (key: string): PouchDB.Database =>
+const transactionsDb = (e: string) => async (key: string): Promise<PouchDB.Database> =>
   new PouchDB(`${e}/${GNARLY_DB_PREFIX}-transactions-${key}`)
 
 class DyanmicDict<T> {
   private cache: { [_: string]: T } = {}
 
   constructor (
-    private generator: (key: string) => T,
+    private generator: (key: string) => Promise<T>,
     private resetFn: (thing: T) => Promise<void> = identity,
     private resetOnFirstInitialization: boolean = false,
   ) {
@@ -95,19 +86,22 @@ class DyanmicDict<T> {
     if (this.cache[key]) { return this.cache[key] }
 
     if (this.resetOnFirstInitialization) {
-      await this.resetFn(this.generator(key))
+      await this.resetFn(await this.generator(key))
     }
 
-    this.cache[key] = this.generator(key)
+    this.cache[key] = await this.generator(key)
     return this.cache[key]
   }
 
-  public invalidate = (key: string) => {
-    this.cache[key] = undefined
+  public invalidate = async (key: string) => {
+    if (this.cache[key]) {
+      await this.resetFn(this.cache[key])
+      this.cache[key] = undefined
+    }
   }
 
-  public flush = () => {
-    this.cache = {}
+  public flush = async () => {
+    await forEach(Object.keys(this.cache), (k) => this.invalidate(k))
   }
 }
 
@@ -148,24 +142,26 @@ export default class PouchDBPersistInterface implements IPersistInterface {
   public saveHistoricalBlock = async (reducerKey: string, blockRetention: number, block: IJSONBlock): Promise<any> => {
     const db = await this.historicalBlocks.get(reducerKey)
     await db.putIfNotExists({
-      _id: block.hash,
+      _id: uuid(),
       hash: block.hash,
       parentHash: block.parentHash,
       number: block.number,
       // ^ manually filter properties we care about from block
     })
 
-    // @TODO (shrugs) - delete blocks after blockRetention for this reducer
+    // god, this is the worst hack ever, but I'm tired of dealing with pouchdb's weird schema
+    const allBlocks = await this.getHistoricalBlocks(reducerKey)
+    const blocksToDelete = allBlocks.slice(0, -1 * blockRetention)
+    // ^ all blocks before blockRetention
+    await db.bulkDocs(blocksToDelete.map((r) => ({ ...r, _deleted: true })))
   }
 
   public deleteHistoricalBlock = async (reducerKey: string, blockHash: string): Promise<any> => {
-    await deleteById(await this.historicalBlocks.get(reducerKey), blockHash)
+    await deleteWithQuery(await this.historicalBlocks.get(reducerKey), { hash: { $eq: blockHash } })
   }
 
   public deleteHistoricalBlocks = async (reducerKey: string): Promise<any> => {
-    const db = await this.historicalBlocks.get(reducerKey)
-    await db.destroy()
-    this.historicalBlocks.invalidate(reducerKey)
+    await this.historicalBlocks.invalidate(reducerKey)
   }
 
   // transaction CRUD
@@ -256,11 +252,11 @@ export default class PouchDBPersistInterface implements IPersistInterface {
     this.didSetDown = true
 
     if (this.historicalBlocks) {
-      this.historicalBlocks.flush()
+      await this.historicalBlocks.flush()
     }
 
     if (this.transactions) {
-      this.transactions.flush()
+      await this.transactions.flush()
     }
   }
 }
diff --git a/packages/gnarly-core/src/stores/sequelize.ts b/packages/gnarly-core/src/stores/sequelize.ts
index 22d7683..df7e039 100644
--- a/packages/gnarly-core/src/stores/sequelize.ts
+++ b/packages/gnarly-core/src/stores/sequelize.ts
@@ -1,4 +1,4 @@
-import identity = require('lodash.identity')
+import { identity } from 'lodash'
 
 const plain = true
 
@@ -367,6 +367,7 @@ export default class SequelizePersistInterface implements IPersistInterface {
     }
   }
 
+  // just get the tx object, no children
   private getPlainTransaction = async (reducerKey: string, txId: string): Promise<ITransaction> => {
     try {
       return (await this.Transaction.findOne({
diff --git a/packages/gnarly-core/src/typeStore/Sequelize.ts b/packages/gnarly-core/src/typeStore/Sequelize.ts
index ef0c98f..f7a0869 100644
--- a/packages/gnarly-core/src/typeStore/Sequelize.ts
+++ b/packages/gnarly-core/src/typeStore/Sequelize.ts
@@ -1,7 +1,7 @@
 import makeDebug = require('debug')
 const debug = makeDebug('gnarly-core:store:sequelize')
 
-import isPlainObject = require('lodash.isplainobject')
+import { isPlainObject } from 'lodash'
 
 import { IOperation, IPatch } from '../ourbit/types'
 import {
diff --git a/packages/gnarly-core/src/utils.ts b/packages/gnarly-core/src/utils.ts
index 7c51818..35a835b 100644
--- a/packages/gnarly-core/src/utils.ts
+++ b/packages/gnarly-core/src/utils.ts
@@ -1,7 +1,7 @@
 import { Operation } from '@xlnt/fast-json-patch'
 import BN = require('bn.js')
 import KSUID = require('ksuid')
-import _ = require('lodash')
+import { flatMap } from 'lodash'
 import memoize from 'moize'
 import numberToBN = require('number-to-bn')
 import pMap = require('p-map')
@@ -117,7 +117,7 @@ export const invertPatch = (patch: IPatch): IPatch => ({
 export const operationsOfPatch = (patch: IPatch): IOperation[] =>
   patch.operations
 export const operationsOfPatches = (patches: IPatch[]): IOperation[] =>
-  _.flatMap(patches, operationsOfPatch)
+  flatMap(patches, operationsOfPatch)
 
 export const toOperation = (operation: IOperation): Operation => operation as Operation
 
diff --git a/packages/gnarly-core/test/Blockstream.spec.ts b/packages/gnarly-core/test/Blockstream.spec.ts
index 0912d18..46d2c08 100644
--- a/packages/gnarly-core/test/Blockstream.spec.ts
+++ b/packages/gnarly-core/test/Blockstream.spec.ts
@@ -6,31 +6,9 @@ import { globalState } from '../src/globalstate'
 import { IJSONBlock } from '../src/models/Block'
 import { forEach, timeout, toBN, toHex } from '../src/utils'
 
-import IJSONBlockFactory from './factories/IJSONBlockFactory'
 import MockIngestApi from './mocks/MockIngestApi'
 import MockPersistInterface from './mocks/MockPersistInterface'
-
-const blockAfter = (block: IJSONBlock, fork: number = 1) => IJSONBlockFactory.build({
-  hash: toHex(toBN(block.hash).add(toBN(1 + 10 * fork))),
-  number: toHex(toBN(block.number).add(toBN(1))),
-  parentHash: block.hash,
-  nonce: toHex(toBN(block.hash).add(toBN(1 + 10 * fork))),
-})
-
-const genesis = () => [IJSONBlockFactory.build({
-  hash: '0x1',
-  number: '0x1',
-  parentHash: '0x0',
-  nonce: '0x1',
-})]
-
-const buildChain = (from: IJSONBlock[], len: number = 10, fork: number = 1) => {
-  const chain = [...from]
-  for (let i = 0; i < len; i++) {
-    chain.push(blockAfter(chain[chain.length - 1], fork))
-  }
-  return chain
-}
+import { buildChain, genesis } from './utils'
 
 const RETENTION = 20
 const MOCK_REDUCER_KEY = 'test'
diff --git a/packages/gnarly-core/test/Ourbit.spec.ts b/packages/gnarly-core/test/Ourbit.spec.ts
index 524eea1..d50ef04 100644
--- a/packages/gnarly-core/test/Ourbit.spec.ts
+++ b/packages/gnarly-core/test/Ourbit.spec.ts
@@ -5,7 +5,7 @@ import { globalState } from '../src/globalstate'
 import * as utils from '../src/utils'
 
 import Ourbit, {
-  ITransaction,
+  ITransaction, ITxExtra,
 } from '../src/ourbit'
 import { ReducerContext } from '../src/reducer'
 import MockPersistInterface from './mocks/MockPersistInterface'
@@ -21,6 +21,8 @@ const TEST_META = {}
 
 const TEST_UUID = utils.uuid()
 
+const extraFor = (tx): ITxExtra => ({ blockHash: tx.blockHash, blockNumber: tx.blockNumber })
+
 describe('Ourbit', () => {
   let ourbit: Ourbit = null
 
@@ -32,7 +34,7 @@ describe('Ourbit', () => {
   const produceFirstPatch = async () => {
     await ourbit.processTransaction(tx.id, async () => {
       targetState.key = 'value'
-    }, { blockHash: tx.blockHash })
+    }, extraFor(tx))
   }
 
   beforeEach(() => {
@@ -46,6 +48,7 @@ describe('Ourbit', () => {
     tx = {
       id: '0x1',
       blockHash: '0x1',
+      blockNumber: '0x0',
       patches: [{
         id: TEST_UUID,
         reason: undefined,
@@ -80,17 +83,6 @@ describe('Ourbit', () => {
     globalState.store.saveTransaction.should.have.been.called.with(TEST_KEY, tx)
   })
 
-  it('should process a transaction with default values', async () => {
-    await ourbit.processTransaction(tx.id, async () => {
-      targetState.key = 'value'
-    })
-
-    const txWithoutBlockHash = tx
-    tx.blockHash = ''
-
-    globalState.store.saveTransaction.should.have.been.called.with(TEST_KEY, txWithoutBlockHash)
-  })
-
   it('should include a reason if provided', async () => {
     tx.patches[0].reason = { key: TEST_REASON, meta: TEST_META }
 
@@ -98,7 +90,7 @@ describe('Ourbit', () => {
       context.because(TEST_REASON, TEST_META, () => {
         targetState.key = 'value'
       })
-    }, { blockHash: tx.blockHash })
+    }, extraFor(tx))
 
     globalState.store.saveTransaction.should.have.been.called.with(TEST_KEY, tx)
   })
@@ -123,7 +115,7 @@ describe('Ourbit', () => {
       context.operation(() => {
         targetState.key = 'newValue'
       })
-    }, { blockHash: tx.blockHash })
+    }, extraFor(tx))
 
     globalState.store.saveTransaction.should.have.been.called.with(TEST_KEY, tx)
   })
@@ -148,7 +140,7 @@ describe('Ourbit', () => {
       context.emit(utils.appendTo('domain', {
         value: 'value',
       }))
-    }, { blockHash: tx.blockHash })
+    }, extraFor(tx))
 
     globalState.store.saveTransaction.should.have.been.called.with(TEST_KEY, tx)
   })
@@ -159,7 +151,7 @@ describe('Ourbit', () => {
 
     await ourbit.processTransaction('0x2', async () => {
       targetState.key = 'newValue'
-    }, { blockHash: '0x2' })
+    }, { blockHash: '0x2', blockNumber: '0x2' })
 
     await ourbit.rollbackTransaction('0x2')
     targetState.should.deep.equal({ key: 'value' })
diff --git a/packages/gnarly-core/test/mocks/MockPersistInterface.ts b/packages/gnarly-core/test/mocks/MockPersistInterface.ts
index 93b81cc..f983005 100644
--- a/packages/gnarly-core/test/mocks/MockPersistInterface.ts
+++ b/packages/gnarly-core/test/mocks/MockPersistInterface.ts
@@ -1,4 +1,4 @@
-import _ = require('lodash')
+import { find, findIndex } from 'lodash'
 import { IJSONBlock } from '../../src/models/Block'
 import {
   ITransaction,
@@ -76,8 +76,8 @@ export default class MockPersistInterface implements IPersistInterface {
     return this.transactions[this.transactions.length - 1]
   }
 
-  public async deleteTransaction (reducerKey: string, tx: ITransaction) {
-    const i = _.findIndex(this.transactions, (t) => t.id === tx.id)
+  public async deleteTransaction (reducerKey: string, txId: string) {
+    const i = findIndex(this.transactions, (t) => t.id === txId)
     this.transactions.splice(i, 1)
     return
   }
@@ -88,10 +88,10 @@ export default class MockPersistInterface implements IPersistInterface {
   }
 
   public async getTransaction (reducerKey: string, txId: string): Promise<ITransaction> {
-    return _.find(this.transactions, (t) => t.id === txId)
+    return find(this.transactions, (t) => t.id === txId)
   }
 
   public async getTransactionByBlockHash (reducerKey: string, blockHash: string): Promise<ITransaction> {
-    return _.find(this.transactions, (t) => t.blockHash === blockHash)
+    return find(this.transactions, (t) => t.blockHash === blockHash)
   }
 }
diff --git a/packages/gnarly-core/test/stores/AllStores.spec.ts b/packages/gnarly-core/test/stores/AllStores.spec.ts
new file mode 100644
index 0000000..fde7199
--- /dev/null
+++ b/packages/gnarly-core/test/stores/AllStores.spec.ts
@@ -0,0 +1,47 @@
+import { exec } from 'child_process'
+import Sequelize = require('sequelize')
+
+import PouchDBPersistInterface from '../../src/stores/pouchdb'
+import SequelizePersistInterface from '../../src/stores/sequelize'
+import { timeout } from '../../src/utils'
+
+import shouldBehaveLikePersistInterface from './PersistInterface.behavior'
+
+describe('All Stores', function () {
+  const pouchDBServerStore = new PouchDBPersistInterface('http://127.0.0.1:5985')
+  const defaultPouchStore = new PouchDBPersistInterface('http://127.0.0.1:5984')
+
+  const sequelize = new Sequelize('postgres://postgres@127.0.0.1:5432/travis_ci_test', {
+    logging: false,
+  })
+  const sequelizeStore = new SequelizePersistInterface(Sequelize, sequelize)
+
+  describe('PouchDB Store (pouchdb-server)', function () {
+    this.timeout(9000)
+    before(async function () {
+      this.child = exec('pouchdb-server -p 5985 -m -d /tmp')
+      this.child.on('error', (error) => {
+        console.log(`child error:\n${error}`)
+      })
+      await timeout(1000)
+    })
+
+    after(async function () {
+      await this.child.kill()
+    })
+
+    shouldBehaveLikePersistInterface(pouchDBServerStore)
+  })
+
+  describe('PouchDB Store (default)', function () {
+    this.timeout(9000)
+    // assumes pouchdb-server/CouchDB available on default port
+    shouldBehaveLikePersistInterface(defaultPouchStore)
+  })
+
+  describe.only('Sequelize Store (Postgres)', function () {
+    this.timeout(2000)
+    // assumes postgres is running locally on default port
+    shouldBehaveLikePersistInterface(sequelizeStore)
+  })
+})
diff --git a/packages/gnarly-core/test/stores/PersistInterface.behavior.ts b/packages/gnarly-core/test/stores/PersistInterface.behavior.ts
new file mode 100644
index 0000000..f9e0564
--- /dev/null
+++ b/packages/gnarly-core/test/stores/PersistInterface.behavior.ts
@@ -0,0 +1,216 @@
+import chai = require('chai')
+import { pickBy } from 'lodash'
+import 'mocha'
+
+const should = chai
+  .use(require('chai-spies'))
+  .should()
+
+import { forEach } from '../../src/utils'
+
+import { IPersistInterface } from '../../src/stores'
+import { buildChain, genesis } from '../utils'
+
+const MOCK_REDUCER_KEY = 'test'
+const MOCK_RETENTION = 10
+
+const onlyKeys = (keys: string[]) => (thing: object) => pickBy(thing, (value, key) => keys.includes(key))
+
+const historialBlockKeys = [
+  'hash',
+  'number',
+  'parentHash',
+]
+
+const blocksShouldEqual = (as, bs) => as.map(onlyKeys(historialBlockKeys))
+  .should.deep.equal(
+    bs.map(onlyKeys(historialBlockKeys)),
+  )
+
+const shouldBehaveAsStore = (store: IPersistInterface) => {
+  const saveAllHistoricalBlocks = async (blocks) => forEach(blocks, (block) =>
+    store.saveHistoricalBlock(MOCK_REDUCER_KEY, MOCK_RETENTION, block),
+  )
+
+  beforeEach(async function () {
+    // implicitly tests setup and setdown
+    await store.setdown()
+    await store.setup()
+  })
+
+  context('reducers', function () {
+    describe('saveReducer', function () {
+      it('should save reducer information', async function () {
+        await store.saveReducer(MOCK_REDUCER_KEY)
+      })
+    })
+
+    describe('deleteReducer', function () {
+      it('should delete reducer information', async function () {
+        await store.saveReducer(MOCK_REDUCER_KEY)
+        await store.deleteReducer(MOCK_REDUCER_KEY)
+      })
+    })
+  })
+
+  context('with reducer', function () {
+    beforeEach(async function () {
+      await store.saveReducer(MOCK_REDUCER_KEY)
+    })
+    afterEach(async function () {
+      await store.deleteReducer(MOCK_REDUCER_KEY)
+    })
+
+    context('historical blocks', function () {
+      describe('saveHistoricalBlock & getHistoricalBlocks', function () {
+        beforeEach(async function () {
+          this.historicalBlocks = buildChain(genesis(), 8)
+          this.lastBlock = this.historicalBlocks[this.historicalBlocks.length - 1]
+        })
+
+        it('should return empty array if no historical blocks', async function () {
+          const blocks = await store.getHistoricalBlocks(MOCK_REDUCER_KEY)
+          blocks.length.should.equal(0)
+        })
+
+        it('should save one historical block', async function () {
+          await store.saveHistoricalBlock(MOCK_REDUCER_KEY, MOCK_RETENTION, this.lastBlock)
+          const blocks = await store.getHistoricalBlocks(MOCK_REDUCER_KEY)
+          blocks.length.should.equal(1)
+          blocksShouldEqual(blocks, [this.lastBlock])
+        })
+
+        it('should save many historical blocks', async function () {
+          await saveAllHistoricalBlocks(this.historicalBlocks)
+
+          const blocks = await store.getHistoricalBlocks(MOCK_REDUCER_KEY)
+          blocks.length.should.equal(this.historicalBlocks.length)
+          blocksShouldEqual(blocks, this.historicalBlocks)
+        })
+      })
+
+      describe('deleteHistoricalBlock', function () {
+        beforeEach(async function () {
+          this.historicalBlocks = buildChain(genesis(), 8)
+          this.lastBlock = this.historicalBlocks[this.historicalBlocks.length - 1]
+          await saveAllHistoricalBlocks(this.historicalBlocks)
+        })
+
+        it('should delete a single historical block', async function () {
+          await store.deleteHistoricalBlock(MOCK_REDUCER_KEY, this.lastBlock.hash)
+          const blocks = await store.getHistoricalBlocks(MOCK_REDUCER_KEY)
+          blocksShouldEqual(blocks, this.historicalBlocks.slice(0, -1))
+        })
+      })
+
+      describe('deleteHistoricalBlocks', function () {
+        beforeEach(async function () {
+          this.historicalBlocks = buildChain(genesis(), 8)
+          await saveAllHistoricalBlocks(this.historicalBlocks)
+        })
+
+        it('should delete all historical blocks', async function () {
+          await store.deleteHistoricalBlocks(MOCK_REDUCER_KEY)
+          const blocks = await store.getHistoricalBlocks(MOCK_REDUCER_KEY)
+          blocks.length.should.equal(0)
+        })
+      })
+
+      context('integration', function () {
+        context('with historical blocks below retention', async function () {
+          beforeEach(async function () {
+            this.historicalBlocks = buildChain(genesis(), MOCK_RETENTION - 1)
+          })
+
+          it('should still have the same number of blocks', async function () {
+            await saveAllHistoricalBlocks(this.historicalBlocks)
+            const blocks = await store.getHistoricalBlocks(MOCK_REDUCER_KEY)
+            blocks.length.should.equal(this.historicalBlocks.length)
+          })
+        })
+
+        context('with historical blocks above retention', async function () {
+          beforeEach(async function () {
+            this.historicalBlocks = buildChain(genesis(), MOCK_RETENTION + 1)
+          })
+
+          it('should delete historical blocks beyond retention', async function () {
+            await saveAllHistoricalBlocks(this.historicalBlocks)
+            const blocks = await store.getHistoricalBlocks(MOCK_REDUCER_KEY)
+            blocks.length.should.equal(MOCK_RETENTION)
+
+            blocksShouldEqual(blocks, this.historicalBlocks.slice(-1 * MOCK_RETENTION))
+          })
+        })
+
+        it('should go through happy path with reverts', async function () {
+          // save initial 8 blocks
+          const base = buildChain(genesis(), 6)
+          const fork1 = buildChain(base, 2)
+          const fork2 = buildChain(base, MOCK_RETENTION)
+          await saveAllHistoricalBlocks(fork1)
+
+          // should be fork1
+          blocksShouldEqual(await store.getHistoricalBlocks(MOCK_REDUCER_KEY), fork1)
+
+          // delete extra fork1 blocks
+          await forEach(fork1.slice(-2), (block) => store.deleteHistoricalBlock(MOCK_REDUCER_KEY, block.hash))
+
+          // should be base
+          blocksShouldEqual(await store.getHistoricalBlocks(MOCK_REDUCER_KEY), base)
+
+          // add fork2 blocks which goes above retention
+          await saveAllHistoricalBlocks(fork2.slice(-1 * MOCK_RETENTION))
+
+          // should be last retention blocks of fork2
+          blocksShouldEqual(await store.getHistoricalBlocks(MOCK_REDUCER_KEY), fork2.slice(-1 * MOCK_RETENTION))
+
+          // nuke all of them
+          await store.deleteHistoricalBlocks(MOCK_REDUCER_KEY)
+
+          // should be empty
+          blocksShouldEqual(await store.getHistoricalBlocks(MOCK_REDUCER_KEY), [])
+        })
+      })
+    })
+
+    context('transactions', function () {
+      describe('getAllTransactionsTo', function () {
+        it('should throw error when given unknown txId')
+        it('should return an AsyncIteratorable set of tx batches')
+        it('should return all transactions up to an existing txId (inclusive) ordered correctly')
+        it('should include patches ordered correctly')
+        it('should not include volatile operations')
+        it('should include operations ordered correctly')
+      })
+
+      describe('getLatestTransaction', function () {
+        it('should throw if there are no transactions')
+        it('should return the latest transaction')
+      })
+
+      describe('deleteTransaction', function () {
+        it('should not error on unknown transaction')
+        it('should delete a specific transaction')
+      })
+
+      describe('saveTransaction', function () {
+        it('should save a specific transaction')
+      })
+
+      describe('getTransaction', function () {
+        it('should throw error for unknown txId')
+        it('should return a specific transaction by id')
+        it('should include volatile operations')
+      })
+
+      describe('getTransactionByBlockHash', function () {
+        it('should throw error for unknown blockHash')
+        it('should return a specific transaction by blockHash')
+        it('should include volatile operations')
+      })
+    })
+  })
+}
+
+export default shouldBehaveAsStore
diff --git a/packages/gnarly-core/test/utils/index.ts b/packages/gnarly-core/test/utils/index.ts
index 66b334b..f06cbb8 100644
--- a/packages/gnarly-core/test/utils/index.ts
+++ b/packages/gnarly-core/test/utils/index.ts
@@ -1,5 +1,10 @@
 import chai = require('chai')
 
+import { IJSONBlock } from '../../src/models/Block'
+import { toBN, toHex } from '../../src/utils'
+
+import IJSONBlockFactory from '../factories/IJSONBlockFactory'
+
 export const expectThrow = async (p) => {
   try {
     await p
@@ -8,3 +13,25 @@ export const expectThrow = async (p) => {
     chai.expect(true).to.equal(true)
   }
 }
+
+export const blockAfter = (block: IJSONBlock, fork: number = 1) => IJSONBlockFactory.build({
+  hash: toHex(toBN(block.hash).add(toBN(1 + 10 * fork))),
+  number: toHex(toBN(block.number).add(toBN(1))),
+  parentHash: block.hash,
+  nonce: toHex(toBN(block.hash).add(toBN(1 + 10 * fork))),
+})
+
+export const genesis = () => [IJSONBlockFactory.build({
+  hash: '0x1',
+  number: '0x1',
+  parentHash: '0x0',
+  nonce: '0x1',
+})]
+
+export const buildChain = (from: IJSONBlock[], len: number = 10, fork: number = 1) => {
+  const chain = [...from]
+  for (let i = 0; i < len; i++) {
+    chain.push(blockAfter(chain[chain.length - 1], fork))
+  }
+  return chain
+}
diff --git a/yarn.lock b/yarn.lock
index bc7b2b2..7345b81 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -8,6 +8,12 @@
   dependencies:
     "@babel/highlight" "7.0.0-beta.51"
 
+"@babel/code-frame@^7.0.0-beta.35":
+  version "7.0.0-rc.1"
+  resolved "https://registry.yarnpkg.com/@babel/code-frame/-/code-frame-7.0.0-rc.1.tgz#5c2154415d6c09959a71845ef519d11157e95d10"
+  dependencies:
+    "@babel/highlight" "7.0.0-rc.1"
+
 "@babel/generator@7.0.0-beta.51":
   version "7.0.0-beta.51"
   resolved "https://registry.yarnpkg.com/@babel/generator/-/generator-7.0.0-beta.51.tgz#6c7575ffde761d07485e04baedc0392c6d9e30f6"
@@ -46,6 +52,14 @@
     esutils "^2.0.2"
     js-tokens "^3.0.0"
 
+"@babel/highlight@7.0.0-rc.1":
+  version "7.0.0-rc.1"
+  resolved "https://registry.yarnpkg.com/@babel/highlight/-/highlight-7.0.0-rc.1.tgz#e0ca4731fa4786f7b9500421d6ff5e5a7753e81e"
+  dependencies:
+    chalk "^2.0.0"
+    esutils "^2.0.2"
+    js-tokens "^3.0.0"
+
 "@babel/parser@7.0.0-beta.51":
   version "7.0.0-beta.51"
   resolved "https://registry.yarnpkg.com/@babel/parser/-/parser-7.0.0-beta.51.tgz#27cec2df409df60af58270ed8f6aa55409ea86f6"
@@ -82,6 +96,18 @@
     lodash "^4.17.5"
     to-fast-properties "^2.0.0"
 
+"@gerhobbelt/linewrap@0.2.2-3":
+  version "0.2.2-3"
+  resolved "https://registry.yarnpkg.com/@gerhobbelt/linewrap/-/linewrap-0.2.2-3.tgz#49d5667922ad02bd0a37084fb8f31309a382f829"
+
+"@gerhobbelt/nomnom@^1.8.4-24":
+  version "1.8.4-24"
+  resolved "https://registry.yarnpkg.com/@gerhobbelt/nomnom/-/nomnom-1.8.4-24.tgz#d03a5e3093f5f68fb5217b1d1e4d7d67d017bf22"
+  dependencies:
+    "@gerhobbelt/linewrap" "0.2.2-3"
+    chalk "2.1.0"
+    exit "0.1.2"
+
 "@lerna/add@^3.0.0":
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/@lerna/add/-/add-3.0.0.tgz#90e660d55d18ee3f2dfd65aae5d07e0c71b29cdf"
@@ -771,16 +797,32 @@ JSONStream@^1.0.4:
     jsonparse "^1.2.0"
     through ">=2.2.7 <3"
 
+abab@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/abab/-/abab-2.0.0.tgz#aba0ab4c5eee2d4c79d3487d85450fb2376ebb0f"
+
 abbrev@1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/abbrev/-/abbrev-1.1.1.tgz#f8f2c887ad10bf67f634f005b6987fed3179aac8"
 
+abstract-leveldown@2.4.1:
+  version "2.4.1"
+  resolved "https://registry.yarnpkg.com/abstract-leveldown/-/abstract-leveldown-2.4.1.tgz#b3bfedb884eb693a12775f0c55e9f0a420ccee64"
+  dependencies:
+    xtend "~4.0.0"
+
 abstract-leveldown@^4.0.0, abstract-leveldown@~4.0.0:
   version "4.0.3"
   resolved "https://registry.yarnpkg.com/abstract-leveldown/-/abstract-leveldown-4.0.3.tgz#cb636f4965fbe117f5c8b76a7d51dd42aaed0580"
   dependencies:
     xtend "~4.0.0"
 
+abstract-leveldown@~3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/abstract-leveldown/-/abstract-leveldown-3.0.0.tgz#5cb89f958a44f526779d740d1440e743e0c30a57"
+  dependencies:
+    xtend "~4.0.0"
+
 abstract-leveldown@~5.0.0:
   version "5.0.0"
   resolved "https://registry.yarnpkg.com/abstract-leveldown/-/abstract-leveldown-5.0.0.tgz#f7128e1f86ccabf7d2893077ce5d06d798e386c6"
@@ -794,6 +836,12 @@ accepts@~1.3.5:
     mime-types "~2.1.18"
     negotiator "0.6.1"
 
+acorn-globals@^4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/acorn-globals/-/acorn-globals-4.1.0.tgz#ab716025dbe17c54d3ef81d32ece2b2d99fe2538"
+  dependencies:
+    acorn "^5.0.0"
+
 acorn-object-rest-spread@1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/acorn-object-rest-spread/-/acorn-object-rest-spread-1.1.0.tgz#78699aefdd18ec3182caadadf52e2697c048f476"
@@ -808,7 +856,7 @@ acorn@^1.0.3:
   version "1.2.2"
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-1.2.2.tgz#c8ce27de0acc76d896d2b1fad3df588d9e82f014"
 
-acorn@^5.2.1:
+acorn@^5.0.0, acorn@^5.2.1, acorn@^5.5.3:
   version "5.7.1"
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.7.1.tgz#f095829297706a7c9776958c0afc8930a9b9d9d8"
 
@@ -870,7 +918,7 @@ ansi-styles@^2.2.1:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-2.2.1.tgz#b432dd3358b634cf75e1e4664368240533c1ddbe"
 
-ansi-styles@^3.1.0, ansi-styles@^3.2.1:
+ansi-styles@^3.1.0, ansi-styles@^3.2.0, ansi-styles@^3.2.1:
   version "3.2.1"
   resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-3.2.1.tgz#41fbb20243e50b12be0f04b8dedbf07520ce841d"
   dependencies:
@@ -895,7 +943,13 @@ append-transform@^0.4.0:
   dependencies:
     default-require-extensions "^1.0.0"
 
-aproba@^1.0.3:
+append-transform@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/append-transform/-/append-transform-1.0.0.tgz#046a52ae582a228bd72f58acfbe2967c678759ab"
+  dependencies:
+    default-require-extensions "^2.0.0"
+
+aproba@^1.0.1, aproba@^1.0.3:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/aproba/-/aproba-1.2.0.tgz#6802e6264efd18c790a1b0d517f0f2627bf2c94a"
 
@@ -920,11 +974,17 @@ argsarray@0.0.1:
   version "0.0.1"
   resolved "https://registry.yarnpkg.com/argsarray/-/argsarray-0.0.1.tgz#6e7207b4ecdb39b0af88303fa5ae22bda8df61cb"
 
+arr-diff@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/arr-diff/-/arr-diff-2.0.0.tgz#8f3b827f955a8bd669697e4a4256ac3ceae356cf"
+  dependencies:
+    arr-flatten "^1.0.1"
+
 arr-diff@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/arr-diff/-/arr-diff-4.0.0.tgz#d6461074febfec71e7e15235761a329a5dc7c520"
 
-arr-flatten@^1.1.0:
+arr-flatten@^1.0.1, arr-flatten@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/arr-flatten/-/arr-flatten-1.1.0.tgz#36048bbff4e7b47e136644316c99669ea5ae91f1"
 
@@ -936,6 +996,10 @@ array-differ@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/array-differ/-/array-differ-1.0.0.tgz#eff52e3758249d33be402b8bb8e564bb2b5d4031"
 
+array-equal@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/array-equal/-/array-equal-1.0.0.tgz#8c2a5ef2472fd9ea742b04c77a75093ba2757c93"
+
 array-find-index@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/array-find-index/-/array-find-index-1.0.2.tgz#df010aa1287e164bbda6f9723b0a96a1ec4187a1"
@@ -958,6 +1022,10 @@ array-uniq@^1.0.1:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/array-uniq/-/array-uniq-1.0.3.tgz#af6ac877a25cc7f74e058894753858dfdb24fdb6"
 
+array-unique@^0.2.1:
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/array-unique/-/array-unique-0.2.1.tgz#a1d97ccafcbc2625cc70fadceb36a50c58b01a53"
+
 array-unique@^0.3.2:
   version "0.3.2"
   resolved "https://registry.yarnpkg.com/array-unique/-/array-unique-0.3.2.tgz#a894b75d4bc4f6cd679ef3244a9fd8f46ae2d428"
@@ -998,6 +1066,10 @@ ast-types@0.9.6:
   version "0.9.6"
   resolved "https://registry.yarnpkg.com/ast-types/-/ast-types-0.9.6.tgz#102c9e9e9005d3e7e3829bf0c4fa24ee862ee9b9"
 
+astral-regex@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/astral-regex/-/astral-regex-1.0.0.tgz#6c8c3fb827dd43ee3918f27b82782ab7658a6fd9"
+
 async-each@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/async-each/-/async-each-1.0.1.tgz#19d386a1d9edc6e7c1c85d388aedbcc56d33602d"
@@ -1010,6 +1082,12 @@ async@^1.4.0:
   version "1.5.2"
   resolved "https://registry.yarnpkg.com/async/-/async-1.5.2.tgz#ec6a61ae56480c0c3cb241c95618e20892f9672a"
 
+async@^2.1.4:
+  version "2.6.1"
+  resolved "https://registry.yarnpkg.com/async/-/async-2.6.1.tgz#b245a23ca71930044ec53fa46aa00a3e87c6a610"
+  dependencies:
+    lodash "^4.17.10"
+
 asynckit@^0.4.0:
   version "0.4.0"
   resolved "https://registry.yarnpkg.com/asynckit/-/asynckit-0.4.0.tgz#c79ed97f7f34cb8f2ba1bc9790bcc366474b4b79"
@@ -1018,6 +1096,10 @@ atob@^2.0.0:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/atob/-/atob-2.1.1.tgz#ae2d5a729477f289d60dd7f96a6314a22dd6c22a"
 
+attempt-x@^1.1.0, attempt-x@^1.1.1:
+  version "1.1.3"
+  resolved "https://registry.yarnpkg.com/attempt-x/-/attempt-x-1.1.3.tgz#9ac844c75bca2c4e9e30d8d5c01f41eeb481a8b7"
+
 aws-sign2@~0.6.0:
   version "0.6.0"
   resolved "https://registry.yarnpkg.com/aws-sign2/-/aws-sign2-0.6.0.tgz#14342dd38dbcc94d0e5b87d763cd63612c0e794f"
@@ -1034,7 +1116,7 @@ aws4@^1.8.0:
   version "1.8.0"
   resolved "https://registry.yarnpkg.com/aws4/-/aws4-1.8.0.tgz#f0e003d9ca9e7f59c7a508945d7b2ef9a04a542f"
 
-babel-code-frame@^6.22.0:
+babel-code-frame@^6.22.0, babel-code-frame@^6.26.0:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-code-frame/-/babel-code-frame-6.26.0.tgz#63fd43f7dc1e3bb7ce35947db8fe369a3f58c74b"
   dependencies:
@@ -1042,6 +1124,99 @@ babel-code-frame@^6.22.0:
     esutils "^2.0.2"
     js-tokens "^3.0.2"
 
+babel-core@^6.0.0, babel-core@^6.26.0:
+  version "6.26.3"
+  resolved "https://registry.yarnpkg.com/babel-core/-/babel-core-6.26.3.tgz#b2e2f09e342d0f0c88e2f02e067794125e75c207"
+  dependencies:
+    babel-code-frame "^6.26.0"
+    babel-generator "^6.26.0"
+    babel-helpers "^6.24.1"
+    babel-messages "^6.23.0"
+    babel-register "^6.26.0"
+    babel-runtime "^6.26.0"
+    babel-template "^6.26.0"
+    babel-traverse "^6.26.0"
+    babel-types "^6.26.0"
+    babylon "^6.18.0"
+    convert-source-map "^1.5.1"
+    debug "^2.6.9"
+    json5 "^0.5.1"
+    lodash "^4.17.4"
+    minimatch "^3.0.4"
+    path-is-absolute "^1.0.1"
+    private "^0.1.8"
+    slash "^1.0.0"
+    source-map "^0.5.7"
+
+babel-generator@^6.18.0, babel-generator@^6.26.0:
+  version "6.26.1"
+  resolved "https://registry.yarnpkg.com/babel-generator/-/babel-generator-6.26.1.tgz#1844408d3b8f0d35a404ea7ac180f087a601bd90"
+  dependencies:
+    babel-messages "^6.23.0"
+    babel-runtime "^6.26.0"
+    babel-types "^6.26.0"
+    detect-indent "^4.0.0"
+    jsesc "^1.3.0"
+    lodash "^4.17.4"
+    source-map "^0.5.7"
+    trim-right "^1.0.1"
+
+babel-helpers@^6.24.1:
+  version "6.24.1"
+  resolved "https://registry.yarnpkg.com/babel-helpers/-/babel-helpers-6.24.1.tgz#3471de9caec388e5c850e597e58a26ddf37602b2"
+  dependencies:
+    babel-runtime "^6.22.0"
+    babel-template "^6.24.1"
+
+babel-jest@^23.4.2:
+  version "23.4.2"
+  resolved "https://registry.yarnpkg.com/babel-jest/-/babel-jest-23.4.2.tgz#f276de67798a5d68f2d6e87ff518c2f6e1609877"
+  dependencies:
+    babel-plugin-istanbul "^4.1.6"
+    babel-preset-jest "^23.2.0"
+
+babel-messages@^6.23.0:
+  version "6.23.0"
+  resolved "https://registry.yarnpkg.com/babel-messages/-/babel-messages-6.23.0.tgz#f3cdf4703858035b2a2951c6ec5edf6c62f2630e"
+  dependencies:
+    babel-runtime "^6.22.0"
+
+babel-plugin-istanbul@^4.1.6:
+  version "4.1.6"
+  resolved "https://registry.yarnpkg.com/babel-plugin-istanbul/-/babel-plugin-istanbul-4.1.6.tgz#36c59b2192efce81c5b378321b74175add1c9a45"
+  dependencies:
+    babel-plugin-syntax-object-rest-spread "^6.13.0"
+    find-up "^2.1.0"
+    istanbul-lib-instrument "^1.10.1"
+    test-exclude "^4.2.1"
+
+babel-plugin-jest-hoist@^23.2.0:
+  version "23.2.0"
+  resolved "https://registry.yarnpkg.com/babel-plugin-jest-hoist/-/babel-plugin-jest-hoist-23.2.0.tgz#e61fae05a1ca8801aadee57a6d66b8cefaf44167"
+
+babel-plugin-syntax-object-rest-spread@^6.13.0:
+  version "6.13.0"
+  resolved "https://registry.yarnpkg.com/babel-plugin-syntax-object-rest-spread/-/babel-plugin-syntax-object-rest-spread-6.13.0.tgz#fd6536f2bce13836ffa3a5458c4903a597bb3bf5"
+
+babel-preset-jest@^23.2.0:
+  version "23.2.0"
+  resolved "https://registry.yarnpkg.com/babel-preset-jest/-/babel-preset-jest-23.2.0.tgz#8ec7a03a138f001a1a8fb1e8113652bf1a55da46"
+  dependencies:
+    babel-plugin-jest-hoist "^23.2.0"
+    babel-plugin-syntax-object-rest-spread "^6.13.0"
+
+babel-register@^6.26.0:
+  version "6.26.0"
+  resolved "https://registry.yarnpkg.com/babel-register/-/babel-register-6.26.0.tgz#6ed021173e2fcb486d7acb45c6009a856f647071"
+  dependencies:
+    babel-core "^6.26.0"
+    babel-runtime "^6.26.0"
+    core-js "^2.5.0"
+    home-or-tmp "^2.0.0"
+    lodash "^4.17.4"
+    mkdirp "^0.5.1"
+    source-map-support "^0.4.15"
+
 babel-runtime@6.25.0:
   version "6.25.0"
   resolved "https://registry.yarnpkg.com/babel-runtime/-/babel-runtime-6.25.0.tgz#33b98eaa5d482bb01a8d1aa6b437ad2b01aec41c"
@@ -1049,6 +1224,50 @@ babel-runtime@6.25.0:
     core-js "^2.4.0"
     regenerator-runtime "^0.10.0"
 
+babel-runtime@^6.22.0, babel-runtime@^6.26.0:
+  version "6.26.0"
+  resolved "https://registry.yarnpkg.com/babel-runtime/-/babel-runtime-6.26.0.tgz#965c7058668e82b55d7bfe04ff2337bc8b5647fe"
+  dependencies:
+    core-js "^2.4.0"
+    regenerator-runtime "^0.11.0"
+
+babel-template@^6.16.0, babel-template@^6.24.1, babel-template@^6.26.0:
+  version "6.26.0"
+  resolved "https://registry.yarnpkg.com/babel-template/-/babel-template-6.26.0.tgz#de03e2d16396b069f46dd9fff8521fb1a0e35e02"
+  dependencies:
+    babel-runtime "^6.26.0"
+    babel-traverse "^6.26.0"
+    babel-types "^6.26.0"
+    babylon "^6.18.0"
+    lodash "^4.17.4"
+
+babel-traverse@^6.0.0, babel-traverse@^6.18.0, babel-traverse@^6.26.0:
+  version "6.26.0"
+  resolved "https://registry.yarnpkg.com/babel-traverse/-/babel-traverse-6.26.0.tgz#46a9cbd7edcc62c8e5c064e2d2d8d0f4035766ee"
+  dependencies:
+    babel-code-frame "^6.26.0"
+    babel-messages "^6.23.0"
+    babel-runtime "^6.26.0"
+    babel-types "^6.26.0"
+    babylon "^6.18.0"
+    debug "^2.6.8"
+    globals "^9.18.0"
+    invariant "^2.2.2"
+    lodash "^4.17.4"
+
+babel-types@^6.0.0, babel-types@^6.18.0, babel-types@^6.26.0:
+  version "6.26.0"
+  resolved "https://registry.yarnpkg.com/babel-types/-/babel-types-6.26.0.tgz#a3b073f94ab49eb6fa55cd65227a334380632497"
+  dependencies:
+    babel-runtime "^6.26.0"
+    esutils "^2.0.2"
+    lodash "^4.17.4"
+    to-fast-properties "^1.0.3"
+
+babylon@^6.18.0:
+  version "6.18.0"
+  resolved "https://registry.yarnpkg.com/babylon/-/babylon-6.18.0.tgz#af2f3b88fa6f5c1e4c634d1a0f8eac4f55b395e3"
+
 balanced-match@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/balanced-match/-/balanced-match-1.0.0.tgz#89b4d199ab2bee49de164ea02b89ce462d71b767"
@@ -1061,6 +1280,10 @@ base62@^1.1.0:
   version "1.2.8"
   resolved "https://registry.yarnpkg.com/base62/-/base62-1.2.8.tgz#1264cb0fb848d875792877479dbe8bae6bae3428"
 
+base64url@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/base64url/-/base64url-3.0.0.tgz#f2ba30b15f80413d88e3e6116c4f3f7f61e28a2a"
+
 base@^0.11.1:
   version "0.11.2"
   resolved "https://registry.yarnpkg.com/base/-/base-0.11.2.tgz#7bde5ced145b6d551a90db87f83c558b4eb48a8f"
@@ -1073,6 +1296,22 @@ base@^0.11.1:
     mixin-deep "^1.2.0"
     pascalcase "^0.1.1"
 
+basic-auth-token@^0.4.2:
+  version "0.4.2"
+  resolved "https://registry.yarnpkg.com/basic-auth-token/-/basic-auth-token-0.4.2.tgz#fc56e66e9dd69c462c3ce5ab7a6b535b35d63a56"
+
+basic-auth@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/basic-auth/-/basic-auth-2.0.0.tgz#015db3f353e02e56377755f962742e8981e7bbba"
+  dependencies:
+    safe-buffer "5.1.1"
+
+basic-authorization-header@^0.2.7:
+  version "0.2.7"
+  resolved "https://registry.yarnpkg.com/basic-authorization-header/-/basic-authorization-header-0.2.7.tgz#233c9ead813cd2074d7298b25826c086028b770d"
+  dependencies:
+    basic-auth-token "^0.4.2"
+
 bcrypt-pbkdf@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/bcrypt-pbkdf/-/bcrypt-pbkdf-1.0.1.tgz#63bc5dcb61331b92bc05fd528953c33462a06f8d"
@@ -1100,7 +1339,7 @@ block-stream@*:
   dependencies:
     inherits "~2.0.0"
 
-bluebird@^3.4.6, bluebird@^3.5.0:
+bluebird@^3.4.6, bluebird@^3.4.7, bluebird@^3.5.0:
   version "3.5.1"
   resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.5.1.tgz#d9551f9de98f1fcda1e683d17ee91a0602ee2eb9"
 
@@ -1131,6 +1370,21 @@ body-parser@1.18.2, body-parser@^1.16.0:
     raw-body "2.3.2"
     type-is "~1.6.15"
 
+body-parser@^1.16.1:
+  version "1.18.3"
+  resolved "https://registry.yarnpkg.com/body-parser/-/body-parser-1.18.3.tgz#5b292198ffdd553b3a0f20ded0592b956955c8b4"
+  dependencies:
+    bytes "3.0.0"
+    content-type "~1.0.4"
+    debug "2.6.9"
+    depd "~1.1.2"
+    http-errors "~1.6.3"
+    iconv-lite "0.4.23"
+    on-finished "~2.3.0"
+    qs "6.5.2"
+    raw-body "2.3.3"
+    type-is "~1.6.16"
+
 boom@2.x.x:
   version "2.10.1"
   resolved "https://registry.yarnpkg.com/boom/-/boom-2.10.1.tgz#39c8918ceff5799f83f9492a848f625add0c766f"
@@ -1168,6 +1422,14 @@ brace-expansion@^1.1.7:
     balanced-match "^1.0.0"
     concat-map "0.0.1"
 
+braces@^1.8.2:
+  version "1.8.5"
+  resolved "https://registry.yarnpkg.com/braces/-/braces-1.8.5.tgz#ba77962e12dff969d6b76711e914b737857bf6a7"
+  dependencies:
+    expand-range "^1.8.1"
+    preserve "^0.2.0"
+    repeat-element "^1.1.2"
+
 braces@^2.3.0, braces@^2.3.1:
   version "2.3.2"
   resolved "https://registry.yarnpkg.com/braces/-/braces-2.3.2.tgz#5979fd3f14cd531565e5fa2df1abfff1dfaee729"
@@ -1187,6 +1449,16 @@ brorand@^1.0.1:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/brorand/-/brorand-1.1.0.tgz#12c25efe40a45e3c323eb8675a0a0ce57b22371f"
 
+browser-process-hrtime@^0.1.2:
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/browser-process-hrtime/-/browser-process-hrtime-0.1.2.tgz#425d68a58d3447f02a04aa894187fce8af8b7b8e"
+
+browser-resolve@^1.11.3:
+  version "1.11.3"
+  resolved "https://registry.yarnpkg.com/browser-resolve/-/browser-resolve-1.11.3.tgz#9b7cbb3d0f510e4cb86bdbd796124d28b5890af6"
+  dependencies:
+    resolve "1.1.7"
+
 browser-stdout@1.3.1:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/browser-stdout/-/browser-stdout-1.3.1.tgz#baa559ee14ced73452229bad7326467c61fabd60"
@@ -1197,6 +1469,12 @@ browserify-sha3@^0.0.1:
   dependencies:
     js-sha3 "^0.3.1"
 
+bser@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/bser/-/bser-2.0.0.tgz#9ac78d3ed5d915804fd87acb158bc797147a1719"
+  dependencies:
+    node-int64 "^0.4.0"
+
 buffer-alloc-unsafe@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/buffer-alloc-unsafe/-/buffer-alloc-unsafe-1.1.0.tgz#bd7dc26ae2972d0eda253be061dba992349c19f0"
@@ -1216,6 +1494,12 @@ buffer-fill@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/buffer-fill/-/buffer-fill-1.0.0.tgz#f8f78b76789888ef39f205cd637f68e702122b2c"
 
+buffer-from@0.1.1:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/buffer-from/-/buffer-from-0.1.1.tgz#57b18b1da0a19ec06f33837a5275a242351bd75e"
+  dependencies:
+    is-array-buffer-x "^1.0.13"
+
 buffer-from@1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/buffer-from/-/buffer-from-1.1.0.tgz#87fcaa3a298358e0ade6e442cfce840740d1ad04"
@@ -1270,6 +1554,10 @@ cache-base@^1.0.1:
     union-value "^1.0.0"
     unset-value "^1.0.0"
 
+cached-constructors-x@^1.0.0, cached-constructors-x@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/cached-constructors-x/-/cached-constructors-x-1.0.2.tgz#d8a7b79b43fdcf13fd861bb763f38b627b0ccf91"
+
 caching-transform@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/caching-transform/-/caching-transform-1.0.1.tgz#6dbdb2f20f8d8fbce79f3e94e9d1742dcdf5c0a1"
@@ -1282,6 +1570,10 @@ call-me-maybe@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/call-me-maybe/-/call-me-maybe-1.0.1.tgz#26d208ea89e37b5cbde60250a15f031c16a4d66b"
 
+callsites@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/callsites/-/callsites-2.0.0.tgz#06eb84f00eea413da86affefacbffb36093b3c50"
+
 camelcase-keys@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/camelcase-keys/-/camelcase-keys-2.1.0.tgz#308beeaffdf28119051efa1d932213c91b8f92e7"
@@ -1309,6 +1601,12 @@ camelcase@^4.0.0, camelcase@^4.1.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-4.1.0.tgz#d545635be1e33c542649c69173e5de6acfae34dd"
 
+capture-exit@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/capture-exit/-/capture-exit-1.2.0.tgz#1c5fcc489fd0ab00d4f1ac7ae1072e3173fbab6f"
+  dependencies:
+    rsvp "^3.3.3"
+
 capture-stack-trace@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/capture-stack-trace/-/capture-stack-trace-1.0.0.tgz#4a6fa07399c26bba47f0b2496b4d0fb408c5550d"
@@ -1511,6 +1809,10 @@ color-name@^1.1.1:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/color-name/-/color-name-1.1.3.tgz#a7d0558bd89c42f795dd42328f740831ca53bc25"
 
+colors@^1.0.3:
+  version "1.3.1"
+  resolved "https://registry.yarnpkg.com/colors/-/colors-1.3.1.tgz#4accdb89cf2cabc7f982771925e9468784f32f3d"
+
 columnify@^1.5.4:
   version "1.5.4"
   resolved "https://registry.yarnpkg.com/columnify/-/columnify-1.5.4.tgz#4737ddf1c7b69a8a7c340570782e947eec8e78bb"
@@ -1565,10 +1867,32 @@ compare-func@^1.3.1:
     array-ify "^1.0.0"
     dot-prop "^3.0.0"
 
+compare-versions@^3.1.0:
+  version "3.3.1"
+  resolved "https://registry.yarnpkg.com/compare-versions/-/compare-versions-3.3.1.tgz#1ede3172b713c15f7c7beb98cb74d2d82576dad3"
+
 component-emitter@^1.2.1:
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/component-emitter/-/component-emitter-1.2.1.tgz#137918d6d78283f7df7a6b7c5a63e140e69425e6"
 
+compressible@~2.0.14:
+  version "2.0.14"
+  resolved "https://registry.yarnpkg.com/compressible/-/compressible-2.0.14.tgz#326c5f507fbb055f54116782b969a81b67a29da7"
+  dependencies:
+    mime-db ">= 1.34.0 < 2"
+
+compression@^1.6.2:
+  version "1.7.3"
+  resolved "https://registry.yarnpkg.com/compression/-/compression-1.7.3.tgz#27e0e176aaf260f7f2c2813c3e440adb9f1993db"
+  dependencies:
+    accepts "~1.3.5"
+    bytes "3.0.0"
+    compressible "~2.0.14"
+    debug "2.6.9"
+    on-headers "~1.0.1"
+    safe-buffer "5.1.2"
+    vary "~1.1.2"
+
 concat-map@0.0.1:
   version "0.0.1"
   resolved "https://registry.yarnpkg.com/concat-map/-/concat-map-0.0.1.tgz#d8a96bd77fd68df7793a73036a3ba0d5405d477b"
@@ -1701,10 +2025,17 @@ conventional-recommended-bump@^2.0.6:
     meow "^4.0.0"
     q "^1.5.1"
 
-convert-source-map@^1.5.0, convert-source-map@^1.5.1:
+convert-source-map@^1.4.0, convert-source-map@^1.5.0, convert-source-map@^1.5.1:
   version "1.5.1"
   resolved "https://registry.yarnpkg.com/convert-source-map/-/convert-source-map-1.5.1.tgz#b8278097b9bc229365de5c62cf5fcaed8b5599e5"
 
+cookie-parser@^1.4.3:
+  version "1.4.3"
+  resolved "https://registry.yarnpkg.com/cookie-parser/-/cookie-parser-1.4.3.tgz#0fe31fa19d000b95f4aadf1f53fdc2b8a203baa5"
+  dependencies:
+    cookie "0.3.1"
+    cookie-signature "1.0.6"
+
 cookie-signature@1.0.6:
   version "1.0.6"
   resolved "https://registry.yarnpkg.com/cookie-signature/-/cookie-signature-1.0.6.tgz#e303a882b342cc3ee8ca513a79999734dab3ae2c"
@@ -1721,6 +2052,10 @@ core-js@^2.4.0:
   version "2.5.6"
   resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.5.6.tgz#0fe6d45bf3cac3ac364a9d72de7576f4eb221b9d"
 
+core-js@^2.5.0:
+  version "2.5.7"
+  resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.5.7.tgz#f972608ff0cead68b841a16a932d0b183791814e"
+
 core-util-is@1.0.2, core-util-is@~1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/core-util-is/-/core-util-is-1.0.2.tgz#b5fd54220aa2bc5ab57aab7140c940754503c1a7"
@@ -1732,6 +2067,10 @@ cors@^2.8.1:
     object-assign "^4"
     vary "^1"
 
+corser@~2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/corser/-/corser-2.0.1.tgz#8eda252ecaab5840dcd975ceb90d9370c819ff87"
+
 cosmiconfig@^5.0.2:
   version "5.0.6"
   resolved "https://registry.yarnpkg.com/cosmiconfig/-/cosmiconfig-5.0.6.tgz#dca6cf680a0bd03589aff684700858c81abeeb39"
@@ -1740,6 +2079,53 @@ cosmiconfig@^5.0.2:
     js-yaml "^3.9.0"
     parse-json "^4.0.0"
 
+couchdb-calculate-session-id@^1.1.0:
+  version "1.1.3"
+  resolved "https://registry.yarnpkg.com/couchdb-calculate-session-id/-/couchdb-calculate-session-id-1.1.3.tgz#b755e2c88ce1d67170dd258b398a6665f09202ba"
+  dependencies:
+    aproba "^1.0.1"
+    base64url "^3.0.0"
+    crypto-lite "^0.2.0"
+
+couchdb-eval@4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/couchdb-eval/-/couchdb-eval-4.1.0.tgz#ee32f9f413e0e7e3ce4d3431a1b60bad0fa1342f"
+  dependencies:
+    extend "^3.0.0"
+    pouchdb-plugin-error "4.1.0"
+
+couchdb-log-parse@^0.0.4:
+  version "0.0.4"
+  resolved "https://registry.yarnpkg.com/couchdb-log-parse/-/couchdb-log-parse-0.0.4.tgz#7594c6a7b481effc7647c711760dfc090658a326"
+
+couchdb-objects@4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/couchdb-objects/-/couchdb-objects-4.1.0.tgz#3735870b0a6dc2ed2a839f3545a24d5ea38c623e"
+  dependencies:
+    extend "^3.0.0"
+    header-case-normalizer "^1.0.3"
+    is-empty "^1.2.0"
+    pouchdb-promise "^6.4.1"
+    random-uuid-v4 "0.0.7"
+
+couchdb-render@4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/couchdb-render/-/couchdb-render-4.1.0.tgz#2882e4f9b8daa6bfcb95d2d7ddb5d308524e1b66"
+  dependencies:
+    couchdb-eval "4.1.0"
+    couchdb-resp-completer "4.1.0"
+    extend "^3.0.0"
+    is-empty "^1.2.0"
+    pouchdb-plugin-error "4.1.0"
+
+couchdb-resp-completer@4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/couchdb-resp-completer/-/couchdb-resp-completer-4.1.0.tgz#51bc69de7030c527dbde3ce6e2aa761f25403f54"
+  dependencies:
+    extend "^3.0.0"
+    is-empty "^1.2.0"
+    pouchdb-plugin-error "4.1.0"
+
 coveralls@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/coveralls/-/coveralls-3.0.2.tgz#f5a0bcd90ca4e64e088b710fa8dda640aea4884f"
@@ -1794,10 +2180,24 @@ cryptiles@3.x.x:
   dependencies:
     boom "5.x.x"
 
+crypto-lite@^0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/crypto-lite/-/crypto-lite-0.2.0.tgz#3a14cf63038461a5eb85945de78bf04de4daaf73"
+
 crypto-random-string@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/crypto-random-string/-/crypto-random-string-1.0.0.tgz#a230f64f568310e1498009940790ec99545bca7e"
 
+cssom@0.3.x, "cssom@>= 0.3.2 < 0.4.0":
+  version "0.3.4"
+  resolved "https://registry.yarnpkg.com/cssom/-/cssom-0.3.4.tgz#8cd52e8a3acfd68d3aed38ee0a640177d2f9d797"
+
+cssstyle@^1.0.0:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/cssstyle/-/cssstyle-1.1.1.tgz#18b038a9c44d65f7a8e428a653b9f6fe42faf5fb"
+  dependencies:
+    cssom "0.3.x"
+
 currently-unhandled@^0.4.1:
   version "0.4.1"
   resolved "https://registry.yarnpkg.com/currently-unhandled/-/currently-unhandled-0.4.1.tgz#988df33feab191ef799a61369dd76c17adf957ea"
@@ -1816,6 +2216,14 @@ dashdash@^1.12.0:
   dependencies:
     assert-plus "^1.0.0"
 
+data-urls@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/data-urls/-/data-urls-1.0.1.tgz#d416ac3896918f29ca84d81085bc3705834da579"
+  dependencies:
+    abab "^2.0.0"
+    whatwg-mimetype "^2.1.0"
+    whatwg-url "^7.0.0"
+
 date-fns@^1.23.0:
   version "1.29.0"
   resolved "https://registry.yarnpkg.com/date-fns/-/date-fns-1.29.0.tgz#12e609cdcb935127311d04d33334e2960a2a54e6"
@@ -1828,7 +2236,7 @@ debug-log@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/debug-log/-/debug-log-1.0.1.tgz#2307632d4c04382b8df8a32f70b895046d52745f"
 
-debug@2.6.9, debug@^2.1.2, debug@^2.2.0, debug@^2.3.3, debug@^2.6.9:
+debug@2.6.9, debug@^2.1.2, debug@^2.2.0, debug@^2.3.3, debug@^2.6.8, debug@^2.6.9:
   version "2.6.9"
   resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.9.tgz#5d128515df134ff327e90a4c93f4e077a536341f"
   dependencies:
@@ -1889,6 +2297,10 @@ deep-extend@^0.5.1:
   version "0.5.1"
   resolved "https://registry.yarnpkg.com/deep-extend/-/deep-extend-0.5.1.tgz#b894a9dd90d3023fbf1c55a394fb858eb2066f1f"
 
+deep-extend@^0.6.0:
+  version "0.6.0"
+  resolved "https://registry.yarnpkg.com/deep-extend/-/deep-extend-0.6.0.tgz#c4fa7c95404a17a9c3e8ca7e1537312b736330ac"
+
 deep-is@~0.1.3:
   version "0.1.3"
   resolved "https://registry.yarnpkg.com/deep-is/-/deep-is-0.1.3.tgz#b369d6fb5dbc13eecf524f91b070feedc357cf34"
@@ -1899,12 +2311,24 @@ default-require-extensions@^1.0.0:
   dependencies:
     strip-bom "^2.0.0"
 
+default-require-extensions@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/default-require-extensions/-/default-require-extensions-2.0.0.tgz#f5f8fbb18a7d6d50b21f641f649ebb522cfe24f7"
+  dependencies:
+    strip-bom "^3.0.0"
+
 defaults@^1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/defaults/-/defaults-1.0.3.tgz#c656051e9817d9ff08ed881477f3fe4019f3ef7d"
   dependencies:
     clone "^1.0.2"
 
+deferred-leveldown@~2.0.2:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/deferred-leveldown/-/deferred-leveldown-2.0.3.tgz#91fbc7699ac85f3920df035792d96d97cbf50c0f"
+  dependencies:
+    abstract-leveldown "~3.0.0"
+
 deferred-leveldown@~3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/deferred-leveldown/-/deferred-leveldown-3.0.0.tgz#bff7241bf156aa3635f520bedf34330c408d3307"
@@ -1956,6 +2380,10 @@ delegates@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/delegates/-/delegates-1.0.0.tgz#84c6e159b81904fdca59a0ef44cd870d31250f9a"
 
+denodeify@^1.2.1:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/denodeify/-/denodeify-1.2.1.tgz#3a36287f5034e699e7577901052c2e6c94251631"
+
 depd@1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/depd/-/depd-1.1.1.tgz#5783b4e1c459f06fa5ca27f991f3d06e7a310359"
@@ -1968,6 +2396,12 @@ destroy@~1.0.4:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/destroy/-/destroy-1.0.4.tgz#978857442c44749e4206613e37946205826abd80"
 
+detect-indent@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/detect-indent/-/detect-indent-4.0.0.tgz#f76d064352cdf43a1cb6ce619c4ee3a9475de208"
+  dependencies:
+    repeating "^2.0.0"
+
 detect-indent@^5.0.0:
   version "5.0.0"
   resolved "https://registry.yarnpkg.com/detect-indent/-/detect-indent-5.0.0.tgz#3871cc0a6a002e8c3e5b3cf7f336264675f06b9d"
@@ -1976,6 +2410,10 @@ detect-libc@^1.0.2, detect-libc@^1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/detect-libc/-/detect-libc-1.0.3.tgz#fa137c4bd698edf55cd5cd02ac559f91a4c4ba9b"
 
+detect-newline@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/detect-newline/-/detect-newline-2.1.0.tgz#f41f1c10be4b00e87b5f13da680759f2c5bfd3e2"
+
 detective@^4.3.1:
   version "4.7.1"
   resolved "https://registry.yarnpkg.com/detective/-/detective-4.7.1.tgz#0eca7314338442febb6d65da54c10bb1c82b246e"
@@ -2005,6 +2443,12 @@ dom-walk@^0.1.0:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/dom-walk/-/dom-walk-0.1.1.tgz#672226dc74c8f799ad35307df936aba11acd6018"
 
+domexception@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/domexception/-/domexception-1.0.1.tgz#937442644ca6a31261ef36e3ec677fe805582c90"
+  dependencies:
+    webidl-conversions "^4.0.2"
+
 dot-prop@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/dot-prop/-/dot-prop-3.0.0.tgz#1b708af094a49c9a0e7dbcad790aba539dac1177"
@@ -2099,6 +2543,12 @@ end-stream@~0.1.0:
   dependencies:
     write-stream "~0.4.3"
 
+equals@^1.0.5:
+  version "1.0.5"
+  resolved "https://registry.yarnpkg.com/equals/-/equals-1.0.5.tgz#212062dde5e1a510d955f13598efcc6a621b6ace"
+  dependencies:
+    jkroso-type "1"
+
 errno@~0.1.1:
   version "0.1.7"
   resolved "https://registry.yarnpkg.com/errno/-/errno-0.1.7.tgz#4684d71779ad39af177e3f007996f7c67c852618"
@@ -2111,7 +2561,7 @@ error-ex@^1.2.0, error-ex@^1.3.1:
   dependencies:
     is-arrayish "^0.2.1"
 
-es-abstract@^1.4.3:
+es-abstract@^1.4.3, es-abstract@^1.5.1:
   version "1.12.0"
   resolved "https://registry.yarnpkg.com/es-abstract/-/es-abstract-1.12.0.tgz#9dbbdd27c6856f0001421ca18782d786bf8a6165"
   dependencies:
@@ -2168,6 +2618,17 @@ escodegen@1.8.1:
   optionalDependencies:
     source-map "~0.2.0"
 
+escodegen@^1.9.1:
+  version "1.11.0"
+  resolved "https://registry.yarnpkg.com/escodegen/-/escodegen-1.11.0.tgz#b27a9389481d5bfd5bec76f7bb1eb3f8f4556589"
+  dependencies:
+    esprima "^3.1.3"
+    estraverse "^4.2.0"
+    esutils "^2.0.2"
+    optionator "^0.8.1"
+  optionalDependencies:
+    source-map "~0.6.1"
+
 esmangle-evaluator@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/esmangle-evaluator/-/esmangle-evaluator-1.0.1.tgz#620d866ef4861b3311f75766d52a8572bb3c6336"
@@ -2188,18 +2649,22 @@ esprima@^2.7.1:
   version "2.7.3"
   resolved "https://registry.yarnpkg.com/esprima/-/esprima-2.7.3.tgz#96e3b70d5779f6ad49cd032673d1c312767ba581"
 
+esprima@^3.1.3, esprima@~3.1.0:
+  version "3.1.3"
+  resolved "https://registry.yarnpkg.com/esprima/-/esprima-3.1.3.tgz#fdca51cee6133895e3c88d535ce49dbff62a4633"
+
 esprima@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/esprima/-/esprima-4.0.0.tgz#4499eddcd1110e0b218bacf2fa7f7f59f55ca804"
 
-esprima@~3.1.0:
-  version "3.1.3"
-  resolved "https://registry.yarnpkg.com/esprima/-/esprima-3.1.3.tgz#fdca51cee6133895e3c88d535ce49dbff62a4633"
-
 estraverse@^1.9.1:
   version "1.9.3"
   resolved "https://registry.yarnpkg.com/estraverse/-/estraverse-1.9.3.tgz#af67f2dc922582415950926091a4005d29c9bb44"
 
+estraverse@^4.2.0:
+  version "4.2.0"
+  resolved "https://registry.yarnpkg.com/estraverse/-/estraverse-4.2.0.tgz#0dee3fed31fcd469618ce7342099fc1afa0bdb13"
+
 esutils@^2.0.2:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/esutils/-/esutils-2.0.2.tgz#0abf4f1caa5bcb1f7a9d8acc6dea4faaa04bac9b"
@@ -2247,6 +2712,12 @@ event-stream@~3.3.0:
     stream-combiner "~0.0.4"
     through "~2.3.1"
 
+exec-sh@^0.2.0:
+  version "0.2.2"
+  resolved "https://registry.yarnpkg.com/exec-sh/-/exec-sh-0.2.2.tgz#2a5e7ffcbd7d0ba2755bdecb16e5a427dfbdec36"
+  dependencies:
+    merge "^1.2.0"
+
 execa@^0.10.0:
   version "0.10.0"
   resolved "https://registry.yarnpkg.com/execa/-/execa-0.10.0.tgz#ff456a8f53f90f8eccc71a96d11bdfc7f082cb50"
@@ -2271,6 +2742,16 @@ execa@^0.7.0:
     signal-exit "^3.0.0"
     strip-eof "^1.0.0"
 
+exit@0.1.2, exit@^0.1.2:
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/exit/-/exit-0.1.2.tgz#0632638f8d877cc82107d30a0fff1a17cba1cd0c"
+
+expand-brackets@^0.1.4:
+  version "0.1.5"
+  resolved "https://registry.yarnpkg.com/expand-brackets/-/expand-brackets-0.1.5.tgz#df07284e342a807cd733ac5af72411e581d1177b"
+  dependencies:
+    is-posix-bracket "^0.1.0"
+
 expand-brackets@^2.1.4:
   version "2.1.4"
   resolved "https://registry.yarnpkg.com/expand-brackets/-/expand-brackets-2.1.4.tgz#b77735e315ce30f6b6eff0f83b04151a22449622"
@@ -2283,6 +2764,12 @@ expand-brackets@^2.1.4:
     snapdragon "^0.8.1"
     to-regex "^3.0.1"
 
+expand-range@^1.8.1:
+  version "1.8.2"
+  resolved "https://registry.yarnpkg.com/expand-range/-/expand-range-1.8.2.tgz#a299effd335fe2721ebae8e257ec79644fc85337"
+  dependencies:
+    fill-range "^2.1.0"
+
 expand-template@1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/expand-template/-/expand-template-1.0.3.tgz#6c303323177a62b1b22c070279f7861287b69b1a"
@@ -2291,7 +2778,53 @@ expand-template@^1.0.2:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/expand-template/-/expand-template-1.1.1.tgz#981f188c0c3a87d2e28f559bc541426ff94f21dd"
 
-express@^4.14.0:
+expect@^23.5.0:
+  version "23.5.0"
+  resolved "https://registry.yarnpkg.com/expect/-/expect-23.5.0.tgz#18999a0eef8f8acf99023fde766d9c323c2562ed"
+  dependencies:
+    ansi-styles "^3.2.0"
+    jest-diff "^23.5.0"
+    jest-get-type "^22.1.0"
+    jest-matcher-utils "^23.5.0"
+    jest-message-util "^23.4.0"
+    jest-regex-util "^23.3.0"
+
+express-pouchdb@4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/express-pouchdb/-/express-pouchdb-4.1.0.tgz#cc8771aa90cb252b77175a229c35054b6286e92e"
+  dependencies:
+    basic-auth "^2.0.0"
+    body-parser "^1.16.1"
+    compression "^1.6.2"
+    cookie-parser "^1.4.3"
+    denodeify "^1.2.1"
+    express "^4.14.1"
+    extend "^3.0.0"
+    header-case-normalizer "^1.0.3"
+    mkdirp "^0.5.0"
+    multiparty "^4.1.3"
+    on-finished "^2.3.0"
+    pouchdb-all-dbs "^1.0.2"
+    pouchdb-auth "4.1.0"
+    pouchdb-collections "^6.4.1"
+    pouchdb-fauxton "^0.0.6"
+    pouchdb-find "^6.4.1"
+    pouchdb-list "4.1.0"
+    pouchdb-promise "^6.4.1"
+    pouchdb-replicator "4.1.0"
+    pouchdb-rewrite "4.1.0"
+    pouchdb-security "4.1.0"
+    pouchdb-show "4.1.0"
+    pouchdb-size "4.1.0"
+    pouchdb-update "4.1.0"
+    pouchdb-validation "4.1.0"
+    pouchdb-vhost "4.1.0"
+    pouchdb-wrappers "4.1.0"
+    raw-body "^2.2.0"
+    sanitize-filename "^1.6.1"
+    uuid "^3.0.1"
+
+express@^4.14.0, express@^4.14.1:
   version "4.16.3"
   resolved "https://registry.yarnpkg.com/express/-/express-4.16.3.tgz#6af8a502350db3246ecc4becf6b5a34d22f7ed53"
   dependencies:
@@ -2355,6 +2888,12 @@ external-editor@^2.1.0:
     iconv-lite "^0.4.17"
     tmp "^0.0.33"
 
+extglob@^0.3.1:
+  version "0.3.2"
+  resolved "https://registry.yarnpkg.com/extglob/-/extglob-0.3.2.tgz#2e18ff3d2f49ab2765cec9023f011daa8d8349a1"
+  dependencies:
+    is-extglob "^1.0.0"
+
 extglob@^2.0.4:
   version "2.0.4"
   resolved "https://registry.yarnpkg.com/extglob/-/extglob-2.0.4.tgz#ad00fe4dc612a9232e8718711dc5cb5ab0285543"
@@ -2420,6 +2959,18 @@ fast-stringify@^1.0.3:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/fast-stringify/-/fast-stringify-1.0.4.tgz#7279707663aea3efbed1d9f5da36d7adbeadf5b6"
 
+fb-watchman@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/fb-watchman/-/fb-watchman-2.0.0.tgz#54e9abf7dfa2f26cd9b1636c588c1afc05de5d58"
+  dependencies:
+    bser "^2.0.0"
+
+fd-slicer@1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/fd-slicer/-/fd-slicer-1.1.0.tgz#25c7c89cb1f9077f8891bbe61d8f390eae256f1e"
+  dependencies:
+    pend "~1.2.0"
+
 fetch-cookie@0.7.0:
   version "0.7.0"
   resolved "https://registry.yarnpkg.com/fetch-cookie/-/fetch-cookie-0.7.0.tgz#a6fc137ad8363aa89125864c6451b86ecb7de802"
@@ -2433,6 +2984,27 @@ figures@^2.0.0:
   dependencies:
     escape-string-regexp "^1.0.5"
 
+filename-regex@^2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/filename-regex/-/filename-regex-2.0.1.tgz#c1c4b9bee3e09725ddb106b75c1e301fe2f18b26"
+
+fileset@^2.0.2:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/fileset/-/fileset-2.0.3.tgz#8e7548a96d3cc2327ee5e674168723a333bba2a0"
+  dependencies:
+    glob "^7.0.3"
+    minimatch "^3.0.3"
+
+fill-range@^2.1.0:
+  version "2.2.4"
+  resolved "https://registry.yarnpkg.com/fill-range/-/fill-range-2.2.4.tgz#eb1e773abb056dcd8df2bfdf6af59b8b3a936565"
+  dependencies:
+    is-number "^2.1.0"
+    isobject "^2.0.0"
+    randomatic "^3.0.0"
+    repeat-element "^1.1.2"
+    repeat-string "^1.5.2"
+
 fill-range@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/fill-range/-/fill-range-4.0.0.tgz#d544811d428f98eb06a63dc402d2403c328c38f7"
@@ -2494,10 +3066,16 @@ for-each@^0.3.2:
   dependencies:
     is-function "~1.0.0"
 
-for-in@^1.0.2:
+for-in@^1.0.1, for-in@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/for-in/-/for-in-1.0.2.tgz#81068d295a8142ec0ac726c6e2200c30fb6d5e80"
 
+for-own@^0.1.4:
+  version "0.1.5"
+  resolved "https://registry.yarnpkg.com/for-own/-/for-own-0.1.5.tgz#5265c681a4f294dabbf17c9509b6763aa84510ce"
+  dependencies:
+    for-in "^1.0.1"
+
 foreach@^2.0.5:
   version "2.0.5"
   resolved "https://registry.yarnpkg.com/foreach/-/foreach-2.0.5.tgz#0bee005018aeb260d0a3af3ae658dd0136ec1b99"
@@ -2591,7 +3169,22 @@ fsevents@^1.1.2:
     nan "^2.9.2"
     node-pre-gyp "^0.9.0"
 
-fstream@^1.0.0, fstream@^1.0.2:
+fsevents@^1.2.3:
+  version "1.2.4"
+  resolved "https://registry.yarnpkg.com/fsevents/-/fsevents-1.2.4.tgz#f41dcb1af2582af3692da36fc55cbd8e1041c426"
+  dependencies:
+    nan "^2.9.2"
+    node-pre-gyp "^0.10.0"
+
+fstream-ignore@^1.0.5:
+  version "1.0.5"
+  resolved "https://registry.yarnpkg.com/fstream-ignore/-/fstream-ignore-1.0.5.tgz#9c31dae34767018fe1d249b24dada67d092da105"
+  dependencies:
+    fstream "^1.0.0"
+    inherits "2"
+    minimatch "^3.0.0"
+
+fstream@^1.0.0, fstream@^1.0.10, fstream@^1.0.2:
   version "1.0.11"
   resolved "https://registry.yarnpkg.com/fstream/-/fstream-1.0.11.tgz#5c1fb1f117477114f0632a0eb4b71b3cb0fd3171"
   dependencies:
@@ -2604,6 +3197,14 @@ function-bind@^1.0.2, function-bind@^1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/function-bind/-/function-bind-1.1.1.tgz#a56899d3ea3c9bab874bb9773b7c5ede92f4895d"
 
+functional-red-black-tree@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/functional-red-black-tree/-/functional-red-black-tree-1.0.1.tgz#1b0ab3bd553b2a0d6399d29c0e3ea0b252078327"
+
+gar@^1.0.2:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/gar/-/gar-1.0.3.tgz#cd6e954dff11821697a9ed5852c7ac5f18df02ce"
+
 gauge@~2.7.3:
   version "2.7.4"
   resolved "https://registry.yarnpkg.com/gauge/-/gauge-2.7.4.tgz#2c03405c7538c39d7eb37b317022e325fb018bf7"
@@ -2625,7 +3226,14 @@ get-caller-file@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/get-caller-file/-/get-caller-file-1.0.2.tgz#f702e63127e7e231c160a80c1554acb70d5047e5"
 
-get-func-name@^2.0.0:
+get-folder-size@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/get-folder-size/-/get-folder-size-2.0.0.tgz#f0ecb4aa30ea855e051366714eaabcc41cf9d43f"
+  dependencies:
+    gar "^1.0.2"
+    tiny-each-async "2.0.3"
+
+get-func-name@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/get-func-name/-/get-func-name-2.0.0.tgz#ead774abee72e20409433a066366023dd6887a41"
 
@@ -2695,6 +3303,19 @@ github-from-package@0.0.0:
   version "0.0.0"
   resolved "https://registry.yarnpkg.com/github-from-package/-/github-from-package-0.0.0.tgz#97fb5d96bfde8973313f20e8288ef9a167fa64ce"
 
+glob-base@^0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/glob-base/-/glob-base-0.3.0.tgz#dbb164f6221b1c0b1ccf82aea328b497df0ea3c4"
+  dependencies:
+    glob-parent "^2.0.0"
+    is-glob "^2.0.0"
+
+glob-parent@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/glob-parent/-/glob-parent-2.0.0.tgz#81383d72db054fcccf5336daa902f182f6edbb28"
+  dependencies:
+    is-glob "^2.0.0"
+
 glob-parent@^3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/glob-parent/-/glob-parent-3.1.0.tgz#9e6af6299d8d3bd2bd40430832bd113df906c5ae"
@@ -2759,6 +3380,10 @@ globals@^11.1.0:
   version "11.7.0"
   resolved "https://registry.yarnpkg.com/globals/-/globals-11.7.0.tgz#a583faa43055b1aca771914bf68258e2fc125673"
 
+globals@^9.18.0:
+  version "9.18.0"
+  resolved "https://registry.yarnpkg.com/globals/-/globals-9.18.0.tgz#aa3896b3e69b487f17e31ed2143d69a8e30c2d8a"
+
 globby@6.1.0:
   version "6.1.0"
   resolved "https://registry.yarnpkg.com/globby/-/globby-6.1.0.tgz#f5a6d70e8395e21c858fb0489d64df02424d506c"
@@ -2809,7 +3434,11 @@ growl@1.10.5, "growl@~> 1.10.0":
   version "1.10.5"
   resolved "https://registry.yarnpkg.com/growl/-/growl-1.10.5.tgz#f2735dc2283674fa67478b10181059355c369e5e"
 
-handlebars@^4.0.11, handlebars@^4.0.2:
+growly@^1.3.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/growly/-/growly-1.3.0.tgz#f10748cbe76af964b7c96c93c6bcc28af120c081"
+
+handlebars@^4.0.11, handlebars@^4.0.2, handlebars@^4.0.3:
   version "4.0.11"
   resolved "https://registry.yarnpkg.com/handlebars/-/handlebars-4.0.11.tgz#630a35dfe0294bc281edae6ffc5d329fc7982dcc"
   dependencies:
@@ -2872,10 +3501,28 @@ has-flag@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-3.0.0.tgz#b5d454dc2199ae225699f3467e5a07f3b955bafd"
 
+has-own-property-x@^3.1.1:
+  version "3.2.0"
+  resolved "https://registry.yarnpkg.com/has-own-property-x/-/has-own-property-x-3.2.0.tgz#1c4b112a577c8cb5805469556e54b6e959e4ded9"
+  dependencies:
+    cached-constructors-x "^1.0.0"
+    to-object-x "^1.5.0"
+    to-property-key-x "^2.0.2"
+
+has-symbol-support-x@^1.4.1, has-symbol-support-x@^1.4.2:
+  version "1.4.2"
+  resolved "https://registry.yarnpkg.com/has-symbol-support-x/-/has-symbol-support-x-1.4.2.tgz#1409f98bc00247da45da67cee0a36f282ff26455"
+
 has-symbols@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/has-symbols/-/has-symbols-1.0.0.tgz#ba1a8f1af2a0fc39650f5c850367704122063b44"
 
+has-to-string-tag-x@^1.4.1:
+  version "1.4.1"
+  resolved "https://registry.yarnpkg.com/has-to-string-tag-x/-/has-to-string-tag-x-1.4.1.tgz#a045ab383d7b4b2012a00148ab0aa5f290044d4d"
+  dependencies:
+    has-symbol-support-x "^1.4.1"
+
 has-unicode@^2.0.0, has-unicode@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/has-unicode/-/has-unicode-2.0.1.tgz#e0e6fe6a28cf51138855e086d1691e771de2a8b9"
@@ -2920,7 +3567,7 @@ hash.js@^1.0.0, hash.js@^1.0.3:
     inherits "^2.0.3"
     minimalistic-assert "^1.0.0"
 
-hawk@~3.1.3:
+hawk@3.1.3, hawk@~3.1.3:
   version "3.1.3"
   resolved "https://registry.yarnpkg.com/hawk/-/hawk-3.1.3.tgz#078444bd7c1640b0fe540d2c9b73d59678e8e1c4"
   dependencies:
@@ -2942,6 +3589,10 @@ he@1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/he/-/he-1.1.1.tgz#93410fd21b009735151f8868c2f271f3427e23fd"
 
+header-case-normalizer@^1.0.3:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/header-case-normalizer/-/header-case-normalizer-1.0.3.tgz#fb1d4c8d0c6169dcab4f7c7e21b186a6a22ac0c1"
+
 hmac-drbg@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/hmac-drbg/-/hmac-drbg-1.0.1.tgz#d2745701025a6c775a6c545793ed502fc0c649a1"
@@ -2958,6 +3609,13 @@ hoek@4.x.x:
   version "4.2.1"
   resolved "https://registry.yarnpkg.com/hoek/-/hoek-4.2.1.tgz#9634502aa12c445dd5a7c5734b572bb8738aacbb"
 
+home-or-tmp@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/home-or-tmp/-/home-or-tmp-2.0.0.tgz#e36c3f2d2cae7d746a857e38d18d5f32a7882db8"
+  dependencies:
+    os-homedir "^1.0.0"
+    os-tmpdir "^1.0.1"
+
 hosted-git-info@^2.1.4:
   version "2.6.0"
   resolved "https://registry.yarnpkg.com/hosted-git-info/-/hosted-git-info-2.6.0.tgz#23235b29ab230c576aab0d4f13fc046b0b038222"
@@ -2966,6 +3624,12 @@ hosted-git-info@^2.6.0:
   version "2.7.1"
   resolved "https://registry.yarnpkg.com/hosted-git-info/-/hosted-git-info-2.7.1.tgz#97f236977bd6e125408930ff6de3eec6281ec047"
 
+html-encoding-sniffer@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/html-encoding-sniffer/-/html-encoding-sniffer-1.0.2.tgz#e70d84b94da53aa375e11fe3a351be6642ca46f8"
+  dependencies:
+    whatwg-encoding "^1.0.1"
+
 http-errors@1.6.2:
   version "1.6.2"
   resolved "https://registry.yarnpkg.com/http-errors/-/http-errors-1.6.2.tgz#0a002cc85707192a7e7946ceedc11155f60ec736"
@@ -2975,7 +3639,7 @@ http-errors@1.6.2:
     setprototypeof "1.0.3"
     statuses ">= 1.3.1 < 2"
 
-http-errors@~1.6.2:
+http-errors@1.6.3, http-errors@~1.6.2, http-errors@~1.6.3:
   version "1.6.3"
   resolved "https://registry.yarnpkg.com/http-errors/-/http-errors-1.6.3.tgz#8b55680bb4be283a0b5bf4ea2e38580be1d9320d"
   dependencies:
@@ -2984,6 +3648,26 @@ http-errors@~1.6.2:
     setprototypeof "1.1.0"
     statuses ">= 1.4.0 < 2"
 
+http-errors@~1.7.0:
+  version "1.7.0"
+  resolved "https://registry.yarnpkg.com/http-errors/-/http-errors-1.7.0.tgz#b6d36492a201c7888bdcb5dd0471140423c4ad2a"
+  dependencies:
+    depd "~1.1.2"
+    inherits "2.0.3"
+    setprototypeof "1.1.0"
+    statuses ">= 1.5.0 < 2"
+    toidentifier "1.0.0"
+
+http-pouchdb@4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/http-pouchdb/-/http-pouchdb-4.1.0.tgz#d73c5551a6c8fa6cb4124f758b00428a81049622"
+  dependencies:
+    basic-authorization-header "^0.2.7"
+    bluebird "^3.4.7"
+    extend "^3.0.0"
+    pouchdb-wrappers "4.1.0"
+    xhr2 "^0.1.3"
+
 http-signature@~1.1.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/http-signature/-/http-signature-1.1.1.tgz#df72e267066cd0ac67fb76adf8e134a8fbcf91bf"
@@ -3004,15 +3688,15 @@ iconv-lite@0.4.19:
   version "0.4.19"
   resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.19.tgz#f7468f60135f5e5dad3399c0a81be9a1603a082b"
 
-iconv-lite@^0.4.17, iconv-lite@^0.4.4, iconv-lite@~0.4.13:
-  version "0.4.22"
-  resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.22.tgz#c6b16b9d05bc6c307dc9303a820412995d2eea95"
+iconv-lite@0.4.23, iconv-lite@^0.4.5:
+  version "0.4.23"
+  resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.23.tgz#297871f63be507adcfbfca715d0cd0eed84e9a63"
   dependencies:
     safer-buffer ">= 2.1.2 < 3"
 
-iconv-lite@^0.4.5:
-  version "0.4.23"
-  resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.23.tgz#297871f63be507adcfbfca715d0cd0eed84e9a63"
+iconv-lite@^0.4.17, iconv-lite@^0.4.4, iconv-lite@~0.4.13:
+  version "0.4.22"
+  resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.22.tgz#c6b16b9d05bc6c307dc9303a820412995d2eea95"
   dependencies:
     safer-buffer ">= 2.1.2 < 3"
 
@@ -3034,6 +3718,10 @@ immediate@3.0.6, immediate@~3.0.5:
   version "3.0.6"
   resolved "https://registry.yarnpkg.com/immediate/-/immediate-3.0.6.tgz#9db1dbd0faf8de6fbe0f5dd5e56bb606280de69b"
 
+immediate@^3.2.2, immediate@^3.2.3:
+  version "3.2.3"
+  resolved "https://registry.yarnpkg.com/immediate/-/immediate-3.2.3.tgz#d140fa8f614659bd6541233097ddaac25cdd991c"
+
 immutable@3.8.2:
   version "3.8.2"
   resolved "https://registry.yarnpkg.com/immutable/-/immutable-3.8.2.tgz#c2439951455bb39913daf281376f1530e104adf3"
@@ -3067,6 +3755,10 @@ indent-string@^3.0.0:
   version "3.2.0"
   resolved "https://registry.yarnpkg.com/indent-string/-/indent-string-3.2.0.tgz#4a5fd6d27cc332f37e5419a504dbb837105c9289"
 
+infinity-x@^1.0.1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/infinity-x/-/infinity-x-1.0.2.tgz#374a4d5c8a9b98d2f61b782fc63892598de2f14c"
+
 inflection@1.12.0:
   version "1.12.0"
   resolved "https://registry.yarnpkg.com/inflection/-/inflection-1.12.0.tgz#a200935656d6f5f6bc4dc7502e1aecb703228416"
@@ -3124,7 +3816,7 @@ inquirer@^5.1.0:
     strip-ansi "^4.0.0"
     through "^2.3.6"
 
-invariant@^2.2.0:
+invariant@^2.2.0, invariant@^2.2.2, invariant@^2.2.4:
   version "2.2.4"
   resolved "https://registry.yarnpkg.com/invariant/-/invariant-2.2.4.tgz#610f3c92c9359ce1db616e538008d23ff35158e6"
   dependencies:
@@ -3157,6 +3849,16 @@ is-accessor-descriptor@^1.0.0:
   dependencies:
     kind-of "^6.0.0"
 
+is-array-buffer-x@^1.0.13:
+  version "1.7.0"
+  resolved "https://registry.yarnpkg.com/is-array-buffer-x/-/is-array-buffer-x-1.7.0.tgz#4b0b10427b64aa3437767adf4fc07702c59b2371"
+  dependencies:
+    attempt-x "^1.1.0"
+    has-to-string-tag-x "^1.4.1"
+    is-object-like-x "^1.5.1"
+    object-get-own-property-descriptor-x "^3.2.0"
+    to-string-tag-x "^1.4.1"
+
 is-arrayish@^0.2.1:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/is-arrayish/-/is-arrayish-0.2.1.tgz#77c99840527aa8ecb1a8ba697b80645a7a926a9d"
@@ -3227,6 +3929,20 @@ is-directory@^0.3.1:
   version "0.3.1"
   resolved "https://registry.yarnpkg.com/is-directory/-/is-directory-0.3.1.tgz#61339b6f2475fc772fd9c9d83f5c8575dc154ae1"
 
+is-dotfile@^1.0.0:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/is-dotfile/-/is-dotfile-1.0.3.tgz#a6a2f32ffd2dfb04f5ca25ecd0f6b83cf798a1e1"
+
+is-empty@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/is-empty/-/is-empty-1.2.0.tgz#de9bb5b278738a05a0b09a57e1fb4d4a341a9f6b"
+
+is-equal-shallow@^0.1.3:
+  version "0.1.3"
+  resolved "https://registry.yarnpkg.com/is-equal-shallow/-/is-equal-shallow-0.1.3.tgz#2238098fc221de0bcfa5d9eac4c45d638aa1c534"
+  dependencies:
+    is-primitive "^2.0.0"
+
 is-extendable@^0.1.0, is-extendable@^0.1.1:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/is-extendable/-/is-extendable-0.1.1.tgz#62b110e289a471418e3ec36a617d472e301dfc89"
@@ -3237,10 +3953,27 @@ is-extendable@^1.0.1:
   dependencies:
     is-plain-object "^2.0.4"
 
+is-extglob@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-extglob/-/is-extglob-1.0.0.tgz#ac468177c4943405a092fc8f29760c6ffc6206c0"
+
 is-extglob@^2.1.0, is-extglob@^2.1.1:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/is-extglob/-/is-extglob-2.1.1.tgz#a88c02535791f02ed37c76a1b9ea9773c833f8c2"
 
+is-falsey-x@^1.0.0, is-falsey-x@^1.0.1:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/is-falsey-x/-/is-falsey-x-1.0.3.tgz#d8bb6d77c15fb2b99d81d10a7351641495fb36e2"
+  dependencies:
+    to-boolean-x "^1.0.2"
+
+is-finite-x@^3.0.2:
+  version "3.0.4"
+  resolved "https://registry.yarnpkg.com/is-finite-x/-/is-finite-x-3.0.4.tgz#320c97bab8aacc7e3cfa34aa58c432762c491b4e"
+  dependencies:
+    infinity-x "^1.0.1"
+    is-nan-x "^1.0.2"
+
 is-finite@^1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/is-finite/-/is-finite-1.0.2.tgz#cc6677695602be550ef11e8b4aa6305342b6d0aa"
@@ -3257,10 +3990,33 @@ is-fullwidth-code-point@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/is-fullwidth-code-point/-/is-fullwidth-code-point-2.0.0.tgz#a3b30a5c4f199183167aaab93beefae3ddfb654f"
 
+is-function-x@^3.2.0, is-function-x@^3.3.0:
+  version "3.3.0"
+  resolved "https://registry.yarnpkg.com/is-function-x/-/is-function-x-3.3.0.tgz#7d16bc113853db206d5e40a8b32caf99bd4ff7c0"
+  dependencies:
+    attempt-x "^1.1.1"
+    has-to-string-tag-x "^1.4.1"
+    is-falsey-x "^1.0.1"
+    is-primitive "^2.0.0"
+    normalize-space-x "^3.0.0"
+    replace-comments-x "^2.0.0"
+    to-boolean-x "^1.0.1"
+    to-string-tag-x "^1.4.2"
+
 is-function@^1.0.1, is-function@~1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/is-function/-/is-function-1.0.1.tgz#12cfb98b65b57dd3d193a3121f5f6e2f437602b5"
 
+is-generator-fn@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-generator-fn/-/is-generator-fn-1.0.0.tgz#969d49e1bb3329f6bb7f09089be26578b2ddd46a"
+
+is-glob@^2.0.0, is-glob@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/is-glob/-/is-glob-2.0.1.tgz#d096f926a3ded5600f3fdfd91198cb0888c2d863"
+  dependencies:
+    is-extglob "^1.0.0"
+
 is-glob@^3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/is-glob/-/is-glob-3.1.0.tgz#7ba5ae24217804ac70707b96922567486cc3e84a"
@@ -3277,6 +4033,16 @@ is-hex-prefixed@1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/is-hex-prefixed/-/is-hex-prefixed-1.0.0.tgz#7d8d37e6ad77e5d127148913c573e082d777f554"
 
+is-index-x@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/is-index-x/-/is-index-x-1.1.0.tgz#43dac97b3a04f30191530833f45ac35001682ee2"
+  dependencies:
+    math-clamp-x "^1.2.0"
+    max-safe-integer "^1.0.1"
+    to-integer-x "^3.0.0"
+    to-number-x "^2.0.0"
+    to-string-symbols-supported-x "^1.0.0"
+
 is-installed-globally@^0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/is-installed-globally/-/is-installed-globally-0.1.0.tgz#0dfd98f5a9111716dd535dda6492f67bf3d25a80"
@@ -3284,14 +4050,31 @@ is-installed-globally@^0.1.0:
     global-dirs "^0.1.0"
     is-path-inside "^1.0.0"
 
+is-nan-x@^1.0.1, is-nan-x@^1.0.2:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/is-nan-x/-/is-nan-x-1.0.3.tgz#1c7fca40fc1b830a36e8800b37513a81f91fcc58"
+
 is-negated-glob@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/is-negated-glob/-/is-negated-glob-1.0.0.tgz#6910bca5da8c95e784b5751b976cf5a10fee36d2"
 
+is-nil-x@^1.4.1, is-nil-x@^1.4.2:
+  version "1.4.2"
+  resolved "https://registry.yarnpkg.com/is-nil-x/-/is-nil-x-1.4.2.tgz#a45e798d1e490d38db4570f2457245da21493e97"
+  dependencies:
+    lodash.isnull "^3.0.0"
+    validate.io-undefined "^1.0.3"
+
 is-npm@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/is-npm/-/is-npm-1.0.0.tgz#f2fb63a65e4905b406c86072765a1a4dc793b9f4"
 
+is-number@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/is-number/-/is-number-2.1.0.tgz#01fcbbb393463a548f2f466cce16dece49db908f"
+  dependencies:
+    kind-of "^3.0.2"
+
 is-number@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/is-number/-/is-number-3.0.0.tgz#24fd6201a4782cf50561c810276afc7d12d71195"
@@ -3306,6 +4089,13 @@ is-obj@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/is-obj/-/is-obj-1.0.1.tgz#3e4729ac1f5fde025cd7d83a896dab9f4f67db0f"
 
+is-object-like-x@^1.5.1:
+  version "1.7.1"
+  resolved "https://registry.yarnpkg.com/is-object-like-x/-/is-object-like-x-1.7.1.tgz#f440ce811fb31278e4ed0b34f2d5a277d87b4481"
+  dependencies:
+    is-function-x "^3.3.0"
+    is-primitive "^3.0.0"
+
 is-odd@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/is-odd/-/is-odd-2.0.0.tgz#7646624671fd7ea558ccd9a2795182f2958f1b24"
@@ -3328,6 +4118,18 @@ is-plain-object@^2.0.1, is-plain-object@^2.0.3, is-plain-object@^2.0.4:
   dependencies:
     isobject "^3.0.1"
 
+is-posix-bracket@^0.1.0:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/is-posix-bracket/-/is-posix-bracket-0.1.1.tgz#3334dc79774368e92f016e6fbc0a88f5cd6e6bc4"
+
+is-primitive@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/is-primitive/-/is-primitive-2.0.0.tgz#207bab91638499c07b2adf240a41a87210034575"
+
+is-primitive@^3.0.0:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/is-primitive/-/is-primitive-3.0.1.tgz#98c4db1abff185485a657fc2905052b940524d05"
+
 is-promise@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/is-promise/-/is-promise-2.1.0.tgz#79a2a9ece7f096e80f36d2b2f3bc16c1ff4bf3fa"
@@ -3356,6 +4158,10 @@ is-stream@^1.0.0, is-stream@^1.0.1, is-stream@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/is-stream/-/is-stream-1.1.0.tgz#12d4a3dd4e68e0b79ceb8dbc84173ae80d91ca44"
 
+is-string@^1.0.4:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/is-string/-/is-string-1.0.4.tgz#cc3a9b69857d621e963725a24caeec873b826e64"
+
 is-subset@^0.1.1:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/is-subset/-/is-subset-0.1.1.tgz#8a59117d932de1de00f245fcdd39ce43f1e939a6"
@@ -3425,6 +4231,23 @@ isstream@~0.1.2:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/isstream/-/isstream-0.1.2.tgz#47e63f7af55afa6f92e1500e690eb8b8529c099a"
 
+istanbul-api@^1.3.1:
+  version "1.3.1"
+  resolved "https://registry.yarnpkg.com/istanbul-api/-/istanbul-api-1.3.1.tgz#4c3b05d18c0016d1022e079b98dc82c40f488954"
+  dependencies:
+    async "^2.1.4"
+    compare-versions "^3.1.0"
+    fileset "^2.0.2"
+    istanbul-lib-coverage "^1.2.0"
+    istanbul-lib-hook "^1.2.0"
+    istanbul-lib-instrument "^1.10.1"
+    istanbul-lib-report "^1.1.4"
+    istanbul-lib-source-maps "^1.2.4"
+    istanbul-reports "^1.3.0"
+    js-yaml "^3.7.0"
+    mkdirp "^0.5.1"
+    once "^1.4.0"
+
 istanbul-lib-coverage@^1.1.2, istanbul-lib-coverage@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/istanbul-lib-coverage/-/istanbul-lib-coverage-1.2.0.tgz#f7d8f2e42b97e37fe796114cb0f9d68b5e3a4341"
@@ -3439,6 +4262,24 @@ istanbul-lib-hook@^1.1.0:
   dependencies:
     append-transform "^0.4.0"
 
+istanbul-lib-hook@^1.2.0:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/istanbul-lib-hook/-/istanbul-lib-hook-1.2.1.tgz#f614ec45287b2a8fc4f07f5660af787575601805"
+  dependencies:
+    append-transform "^1.0.0"
+
+istanbul-lib-instrument@^1.10.1:
+  version "1.10.1"
+  resolved "https://registry.yarnpkg.com/istanbul-lib-instrument/-/istanbul-lib-instrument-1.10.1.tgz#724b4b6caceba8692d3f1f9d0727e279c401af7b"
+  dependencies:
+    babel-generator "^6.18.0"
+    babel-template "^6.16.0"
+    babel-traverse "^6.18.0"
+    babel-types "^6.18.0"
+    babylon "^6.18.0"
+    istanbul-lib-coverage "^1.2.0"
+    semver "^5.3.0"
+
 istanbul-lib-instrument@^2.1.0:
   version "2.3.2"
   resolved "https://registry.yarnpkg.com/istanbul-lib-instrument/-/istanbul-lib-instrument-2.3.2.tgz#b287cbae2b5f65f3567b05e2e29b275eaf92d25e"
@@ -3460,7 +4301,16 @@ istanbul-lib-report@^1.1.3:
     path-parse "^1.0.5"
     supports-color "^3.1.2"
 
-istanbul-lib-source-maps@^1.2.5:
+istanbul-lib-report@^1.1.4:
+  version "1.1.4"
+  resolved "https://registry.yarnpkg.com/istanbul-lib-report/-/istanbul-lib-report-1.1.4.tgz#e886cdf505c4ebbd8e099e4396a90d0a28e2acb5"
+  dependencies:
+    istanbul-lib-coverage "^1.2.0"
+    mkdirp "^0.5.1"
+    path-parse "^1.0.5"
+    supports-color "^3.1.2"
+
+istanbul-lib-source-maps@^1.2.4, istanbul-lib-source-maps@^1.2.5:
   version "1.2.5"
   resolved "https://registry.yarnpkg.com/istanbul-lib-source-maps/-/istanbul-lib-source-maps-1.2.5.tgz#ffe6be4e7ab86d3603e4290d54990b14506fc9b1"
   dependencies:
@@ -3470,12 +4320,312 @@ istanbul-lib-source-maps@^1.2.5:
     rimraf "^2.6.1"
     source-map "^0.5.3"
 
+istanbul-reports@^1.3.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/istanbul-reports/-/istanbul-reports-1.3.0.tgz#2f322e81e1d9520767597dca3c20a0cce89a3554"
+  dependencies:
+    handlebars "^4.0.3"
+
 istanbul-reports@^1.4.1:
   version "1.5.0"
   resolved "https://registry.yarnpkg.com/istanbul-reports/-/istanbul-reports-1.5.0.tgz#c6c2867fa65f59eb7dcedb7f845dfc76aaee70f9"
   dependencies:
     handlebars "^4.0.11"
 
+jest-changed-files@^23.4.2:
+  version "23.4.2"
+  resolved "https://registry.yarnpkg.com/jest-changed-files/-/jest-changed-files-23.4.2.tgz#1eed688370cd5eebafe4ae93d34bb3b64968fe83"
+  dependencies:
+    throat "^4.0.0"
+
+jest-cli@^23.5.0:
+  version "23.5.0"
+  resolved "https://registry.yarnpkg.com/jest-cli/-/jest-cli-23.5.0.tgz#d316b8e34a38a610a1efc4f0403d8ef8a55e4492"
+  dependencies:
+    ansi-escapes "^3.0.0"
+    chalk "^2.0.1"
+    exit "^0.1.2"
+    glob "^7.1.2"
+    graceful-fs "^4.1.11"
+    import-local "^1.0.0"
+    is-ci "^1.0.10"
+    istanbul-api "^1.3.1"
+    istanbul-lib-coverage "^1.2.0"
+    istanbul-lib-instrument "^1.10.1"
+    istanbul-lib-source-maps "^1.2.4"
+    jest-changed-files "^23.4.2"
+    jest-config "^23.5.0"
+    jest-environment-jsdom "^23.4.0"
+    jest-get-type "^22.1.0"
+    jest-haste-map "^23.5.0"
+    jest-message-util "^23.4.0"
+    jest-regex-util "^23.3.0"
+    jest-resolve-dependencies "^23.5.0"
+    jest-runner "^23.5.0"
+    jest-runtime "^23.5.0"
+    jest-snapshot "^23.5.0"
+    jest-util "^23.4.0"
+    jest-validate "^23.5.0"
+    jest-watcher "^23.4.0"
+    jest-worker "^23.2.0"
+    micromatch "^2.3.11"
+    node-notifier "^5.2.1"
+    prompts "^0.1.9"
+    realpath-native "^1.0.0"
+    rimraf "^2.5.4"
+    slash "^1.0.0"
+    string-length "^2.0.0"
+    strip-ansi "^4.0.0"
+    which "^1.2.12"
+    yargs "^11.0.0"
+
+jest-config@^23.5.0:
+  version "23.5.0"
+  resolved "https://registry.yarnpkg.com/jest-config/-/jest-config-23.5.0.tgz#3770fba03f7507ee15f3b8867c742e48f31a9773"
+  dependencies:
+    babel-core "^6.0.0"
+    babel-jest "^23.4.2"
+    chalk "^2.0.1"
+    glob "^7.1.1"
+    jest-environment-jsdom "^23.4.0"
+    jest-environment-node "^23.4.0"
+    jest-get-type "^22.1.0"
+    jest-jasmine2 "^23.5.0"
+    jest-regex-util "^23.3.0"
+    jest-resolve "^23.5.0"
+    jest-util "^23.4.0"
+    jest-validate "^23.5.0"
+    micromatch "^2.3.11"
+    pretty-format "^23.5.0"
+
+jest-diff@^23.5.0:
+  version "23.5.0"
+  resolved "https://registry.yarnpkg.com/jest-diff/-/jest-diff-23.5.0.tgz#250651a433dd0050290a07642946cc9baaf06fba"
+  dependencies:
+    chalk "^2.0.1"
+    diff "^3.2.0"
+    jest-get-type "^22.1.0"
+    pretty-format "^23.5.0"
+
+jest-docblock@^23.2.0:
+  version "23.2.0"
+  resolved "https://registry.yarnpkg.com/jest-docblock/-/jest-docblock-23.2.0.tgz#f085e1f18548d99fdd69b20207e6fd55d91383a7"
+  dependencies:
+    detect-newline "^2.1.0"
+
+jest-each@^23.5.0:
+  version "23.5.0"
+  resolved "https://registry.yarnpkg.com/jest-each/-/jest-each-23.5.0.tgz#77f7e2afe6132a80954b920006e78239862b10ba"
+  dependencies:
+    chalk "^2.0.1"
+    pretty-format "^23.5.0"
+
+jest-environment-jsdom@^23.4.0:
+  version "23.4.0"
+  resolved "https://registry.yarnpkg.com/jest-environment-jsdom/-/jest-environment-jsdom-23.4.0.tgz#056a7952b3fea513ac62a140a2c368c79d9e6023"
+  dependencies:
+    jest-mock "^23.2.0"
+    jest-util "^23.4.0"
+    jsdom "^11.5.1"
+
+jest-environment-node@^23.4.0:
+  version "23.4.0"
+  resolved "https://registry.yarnpkg.com/jest-environment-node/-/jest-environment-node-23.4.0.tgz#57e80ed0841dea303167cce8cd79521debafde10"
+  dependencies:
+    jest-mock "^23.2.0"
+    jest-util "^23.4.0"
+
+jest-get-type@^22.1.0:
+  version "22.4.3"
+  resolved "https://registry.yarnpkg.com/jest-get-type/-/jest-get-type-22.4.3.tgz#e3a8504d8479342dd4420236b322869f18900ce4"
+
+jest-haste-map@^23.5.0:
+  version "23.5.0"
+  resolved "https://registry.yarnpkg.com/jest-haste-map/-/jest-haste-map-23.5.0.tgz#d4ca618188bd38caa6cb20349ce6610e194a8065"
+  dependencies:
+    fb-watchman "^2.0.0"
+    graceful-fs "^4.1.11"
+    invariant "^2.2.4"
+    jest-docblock "^23.2.0"
+    jest-serializer "^23.0.1"
+    jest-worker "^23.2.0"
+    micromatch "^2.3.11"
+    sane "^2.0.0"
+
+jest-jasmine2@^23.5.0:
+  version "23.5.0"
+  resolved "https://registry.yarnpkg.com/jest-jasmine2/-/jest-jasmine2-23.5.0.tgz#05fe7f1788e650eeb5a03929e6461ea2e9f3db53"
+  dependencies:
+    babel-traverse "^6.0.0"
+    chalk "^2.0.1"
+    co "^4.6.0"
+    expect "^23.5.0"
+    is-generator-fn "^1.0.0"
+    jest-diff "^23.5.0"
+    jest-each "^23.5.0"
+    jest-matcher-utils "^23.5.0"
+    jest-message-util "^23.4.0"
+    jest-snapshot "^23.5.0"
+    jest-util "^23.4.0"
+    pretty-format "^23.5.0"
+
+jest-leak-detector@^23.5.0:
+  version "23.5.0"
+  resolved "https://registry.yarnpkg.com/jest-leak-detector/-/jest-leak-detector-23.5.0.tgz#14ac2a785bd625160a2ea968fd5d98b7dcea3e64"
+  dependencies:
+    pretty-format "^23.5.0"
+
+jest-matcher-utils@^23.5.0:
+  version "23.5.0"
+  resolved "https://registry.yarnpkg.com/jest-matcher-utils/-/jest-matcher-utils-23.5.0.tgz#0e2ea67744cab78c9ab15011c4d888bdd3e49e2a"
+  dependencies:
+    chalk "^2.0.1"
+    jest-get-type "^22.1.0"
+    pretty-format "^23.5.0"
+
+jest-message-util@^23.4.0:
+  version "23.4.0"
+  resolved "https://registry.yarnpkg.com/jest-message-util/-/jest-message-util-23.4.0.tgz#17610c50942349508d01a3d1e0bda2c079086a9f"
+  dependencies:
+    "@babel/code-frame" "^7.0.0-beta.35"
+    chalk "^2.0.1"
+    micromatch "^2.3.11"
+    slash "^1.0.0"
+    stack-utils "^1.0.1"
+
+jest-mock@^23.2.0:
+  version "23.2.0"
+  resolved "https://registry.yarnpkg.com/jest-mock/-/jest-mock-23.2.0.tgz#ad1c60f29e8719d47c26e1138098b6d18b261134"
+
+jest-regex-util@^23.3.0:
+  version "23.3.0"
+  resolved "https://registry.yarnpkg.com/jest-regex-util/-/jest-regex-util-23.3.0.tgz#5f86729547c2785c4002ceaa8f849fe8ca471bc5"
+
+jest-resolve-dependencies@^23.5.0:
+  version "23.5.0"
+  resolved "https://registry.yarnpkg.com/jest-resolve-dependencies/-/jest-resolve-dependencies-23.5.0.tgz#10c4d135beb9d2256de1fedc7094916c3ad74af7"
+  dependencies:
+    jest-regex-util "^23.3.0"
+    jest-snapshot "^23.5.0"
+
+jest-resolve@^23.5.0:
+  version "23.5.0"
+  resolved "https://registry.yarnpkg.com/jest-resolve/-/jest-resolve-23.5.0.tgz#3b8e7f67e84598f0caf63d1530bd8534a189d0e6"
+  dependencies:
+    browser-resolve "^1.11.3"
+    chalk "^2.0.1"
+    realpath-native "^1.0.0"
+
+jest-runner@^23.5.0:
+  version "23.5.0"
+  resolved "https://registry.yarnpkg.com/jest-runner/-/jest-runner-23.5.0.tgz#570f7a044da91648b5bb9b6baacdd511076c71d7"
+  dependencies:
+    exit "^0.1.2"
+    graceful-fs "^4.1.11"
+    jest-config "^23.5.0"
+    jest-docblock "^23.2.0"
+    jest-haste-map "^23.5.0"
+    jest-jasmine2 "^23.5.0"
+    jest-leak-detector "^23.5.0"
+    jest-message-util "^23.4.0"
+    jest-runtime "^23.5.0"
+    jest-util "^23.4.0"
+    jest-worker "^23.2.0"
+    source-map-support "^0.5.6"
+    throat "^4.0.0"
+
+jest-runtime@^23.5.0:
+  version "23.5.0"
+  resolved "https://registry.yarnpkg.com/jest-runtime/-/jest-runtime-23.5.0.tgz#eb503525a196dc32f2f9974e3482d26bdf7b63ce"
+  dependencies:
+    babel-core "^6.0.0"
+    babel-plugin-istanbul "^4.1.6"
+    chalk "^2.0.1"
+    convert-source-map "^1.4.0"
+    exit "^0.1.2"
+    fast-json-stable-stringify "^2.0.0"
+    graceful-fs "^4.1.11"
+    jest-config "^23.5.0"
+    jest-haste-map "^23.5.0"
+    jest-message-util "^23.4.0"
+    jest-regex-util "^23.3.0"
+    jest-resolve "^23.5.0"
+    jest-snapshot "^23.5.0"
+    jest-util "^23.4.0"
+    jest-validate "^23.5.0"
+    micromatch "^2.3.11"
+    realpath-native "^1.0.0"
+    slash "^1.0.0"
+    strip-bom "3.0.0"
+    write-file-atomic "^2.1.0"
+    yargs "^11.0.0"
+
+jest-serializer@^23.0.1:
+  version "23.0.1"
+  resolved "https://registry.yarnpkg.com/jest-serializer/-/jest-serializer-23.0.1.tgz#a3776aeb311e90fe83fab9e533e85102bd164165"
+
+jest-snapshot@^23.5.0:
+  version "23.5.0"
+  resolved "https://registry.yarnpkg.com/jest-snapshot/-/jest-snapshot-23.5.0.tgz#cc368ebd8513e1175e2a7277f37a801b7358ae79"
+  dependencies:
+    babel-types "^6.0.0"
+    chalk "^2.0.1"
+    jest-diff "^23.5.0"
+    jest-matcher-utils "^23.5.0"
+    jest-message-util "^23.4.0"
+    jest-resolve "^23.5.0"
+    mkdirp "^0.5.1"
+    natural-compare "^1.4.0"
+    pretty-format "^23.5.0"
+    semver "^5.5.0"
+
+jest-util@^23.4.0:
+  version "23.4.0"
+  resolved "https://registry.yarnpkg.com/jest-util/-/jest-util-23.4.0.tgz#4d063cb927baf0a23831ff61bec2cbbf49793561"
+  dependencies:
+    callsites "^2.0.0"
+    chalk "^2.0.1"
+    graceful-fs "^4.1.11"
+    is-ci "^1.0.10"
+    jest-message-util "^23.4.0"
+    mkdirp "^0.5.1"
+    slash "^1.0.0"
+    source-map "^0.6.0"
+
+jest-validate@^23.5.0:
+  version "23.5.0"
+  resolved "https://registry.yarnpkg.com/jest-validate/-/jest-validate-23.5.0.tgz#f5df8f761cf43155e1b2e21d6e9de8a2852d0231"
+  dependencies:
+    chalk "^2.0.1"
+    jest-get-type "^22.1.0"
+    leven "^2.1.0"
+    pretty-format "^23.5.0"
+
+jest-watcher@^23.4.0:
+  version "23.4.0"
+  resolved "https://registry.yarnpkg.com/jest-watcher/-/jest-watcher-23.4.0.tgz#d2e28ce74f8dad6c6afc922b92cabef6ed05c91c"
+  dependencies:
+    ansi-escapes "^3.0.0"
+    chalk "^2.0.1"
+    string-length "^2.0.0"
+
+jest-worker@^23.2.0:
+  version "23.2.0"
+  resolved "https://registry.yarnpkg.com/jest-worker/-/jest-worker-23.2.0.tgz#faf706a8da36fae60eb26957257fa7b5d8ea02b9"
+  dependencies:
+    merge-stream "^1.0.1"
+
+jest@^23.1.0:
+  version "23.5.0"
+  resolved "https://registry.yarnpkg.com/jest/-/jest-23.5.0.tgz#80de353d156ea5ea4a7332f7962ac79135fbc62e"
+  dependencies:
+    import-local "^1.0.0"
+    jest-cli "^23.5.0"
+
+jkroso-type@1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/jkroso-type/-/jkroso-type-1.1.1.tgz#bc4ced6d6c45fe0745282bafc86a9f8c4fc9ce61"
+
 js-sha3@^0.3.1:
   version "0.3.1"
   resolved "https://registry.yarnpkg.com/js-sha3/-/js-sha3-0.3.1.tgz#86122802142f0828502a0d1dee1d95e253bb0243"
@@ -3506,6 +4656,41 @@ jsbn@~0.1.0:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/jsbn/-/jsbn-0.1.1.tgz#a5e654c2e5a2deb5f201d96cefbca80c0ef2f513"
 
+jsdom@^11.5.1:
+  version "11.12.0"
+  resolved "https://registry.yarnpkg.com/jsdom/-/jsdom-11.12.0.tgz#1a80d40ddd378a1de59656e9e6dc5a3ba8657bc8"
+  dependencies:
+    abab "^2.0.0"
+    acorn "^5.5.3"
+    acorn-globals "^4.1.0"
+    array-equal "^1.0.0"
+    cssom ">= 0.3.2 < 0.4.0"
+    cssstyle "^1.0.0"
+    data-urls "^1.0.0"
+    domexception "^1.0.1"
+    escodegen "^1.9.1"
+    html-encoding-sniffer "^1.0.2"
+    left-pad "^1.3.0"
+    nwsapi "^2.0.7"
+    parse5 "4.0.0"
+    pn "^1.1.0"
+    request "^2.87.0"
+    request-promise-native "^1.0.5"
+    sax "^1.2.4"
+    symbol-tree "^3.2.2"
+    tough-cookie "^2.3.4"
+    w3c-hr-time "^1.0.1"
+    webidl-conversions "^4.0.2"
+    whatwg-encoding "^1.0.3"
+    whatwg-mimetype "^2.1.0"
+    whatwg-url "^6.4.1"
+    ws "^5.2.0"
+    xml-name-validator "^3.0.0"
+
+jsesc@^1.3.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/jsesc/-/jsesc-1.3.0.tgz#46c3fec8c1892b12b0833db9bc7622176dbab34b"
+
 jsesc@^2.5.1:
   version "2.5.1"
   resolved "https://registry.yarnpkg.com/jsesc/-/jsesc-2.5.1.tgz#e421a2a8e20d6b0819df28908f782526b96dd1fe"
@@ -3532,6 +4717,10 @@ json-stringify-safe@^5.0.1, json-stringify-safe@~5.0.1:
   version "5.0.1"
   resolved "https://registry.yarnpkg.com/json-stringify-safe/-/json-stringify-safe-5.0.1.tgz#1296a2d58fd45f19a0f6ce01d65701e2c735b6eb"
 
+json5@^0.5.1:
+  version "0.5.1"
+  resolved "https://registry.yarnpkg.com/json5/-/json5-0.5.1.tgz#1eade7acc012034ad84e2396767ead9fa5495821"
+
 jsonfile@^3.0.0:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/jsonfile/-/jsonfile-3.0.1.tgz#a5ecc6f65f53f662c4415c7675a0331d0992ec66"
@@ -3586,6 +4775,10 @@ keccakjs@^0.2.1:
     browserify-sha3 "^0.0.1"
     sha3 "^1.1.0"
 
+killable@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/killable/-/killable-1.0.0.tgz#da8b84bd47de5395878f95d64d02f2449fe05e6b"
+
 kind-of@^3.0.2, kind-of@^3.0.3, kind-of@^3.2.0:
   version "3.2.2"
   resolved "https://registry.yarnpkg.com/kind-of/-/kind-of-3.2.2.tgz#31ea21a734bab9bbb0f32466d893aea51e4a3c64"
@@ -3606,6 +4799,10 @@ kind-of@^6.0.0, kind-of@^6.0.2:
   version "6.0.2"
   resolved "https://registry.yarnpkg.com/kind-of/-/kind-of-6.0.2.tgz#01146b36a6218e64e58f3a8d66de5d7fc6f6d051"
 
+kleur@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/kleur/-/kleur-2.0.1.tgz#7cc64b0d188d0dcbc98bdcdfdda2cc10619ddce8"
+
 ksuid@^1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/ksuid/-/ksuid-1.1.2.tgz#582ab1bc9fe36e6b9ff3c0fd85c76c67132150ec"
@@ -3652,6 +4849,10 @@ lead@^1.0.0:
   dependencies:
     flush-write-stream "^1.0.2"
 
+left-pad@^1.3.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/left-pad/-/left-pad-1.3.0.tgz#5b8a3a7765dfe001261dde915589e782f8c94d1e"
+
 lerna@^3.0.3:
   version "3.0.3"
   resolved "https://registry.yarnpkg.com/lerna/-/lerna-3.0.3.tgz#130b98e51ac4d2889fad7a753f934ddd4440072f"
@@ -3701,6 +4902,13 @@ level-write-stream@1.0.0:
   dependencies:
     end-stream "~0.1.0"
 
+level@2.1.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/level/-/level-2.1.1.tgz#6c9d459dc6a417ef1f53c58e3cb23180b0734926"
+  dependencies:
+    level-packager "^2.0.2"
+    leveldown "^2.1.1"
+
 level@3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/level/-/level-3.0.2.tgz#83c3d6e48c9e89abc4b6f5ca1c591f177ea2bd59"
@@ -3709,6 +4917,16 @@ level@3.0.2:
     leveldown "^3.0.0"
     opencollective-postinstall "^2.0.0"
 
+leveldown@2.1.1, leveldown@^2.1.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/leveldown/-/leveldown-2.1.1.tgz#2f4d786dfe6ba3ecc63409784ce29eca110413bf"
+  dependencies:
+    abstract-leveldown "~3.0.0"
+    bindings "~1.3.0"
+    fast-future "~1.0.2"
+    nan "~2.8.0"
+    prebuild-install "^2.1.0"
+
 leveldown@3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/leveldown/-/leveldown-3.0.0.tgz#a42ef5d4029f88ba538ed8da3e6c34c5b008ddd7"
@@ -3729,6 +4947,15 @@ leveldown@^3.0.0:
     nan "~2.10.0"
     prebuild-install "^4.0.0"
 
+levelup@2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/levelup/-/levelup-2.0.1.tgz#3dc91b3e632d37c9e546239c864118b004c9f860"
+  dependencies:
+    deferred-leveldown "~2.0.2"
+    level-errors "~1.1.0"
+    level-iterator-stream "~2.0.0"
+    xtend "~4.0.0"
+
 levelup@3.0.1:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/levelup/-/levelup-3.0.1.tgz#07794639fd0af185089130aaea09d03023637b8d"
@@ -3747,6 +4974,10 @@ levelup@^2.0.0:
     level-iterator-stream "~2.0.0"
     xtend "~4.0.0"
 
+leven@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/leven/-/leven-2.1.0.tgz#c2e7a9f772094dee9d34202ae8acce4687875580"
+
 levn@~0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/levn/-/levn-0.3.0.tgz#3b09924edf9f083c0490fdd4c0bc4421e04764ee"
@@ -3806,13 +5037,13 @@ lodash._reinterpolate@~3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/lodash._reinterpolate/-/lodash._reinterpolate-3.0.0.tgz#0ccf2d89166af03b3663c796538b75ac6e114d9d"
 
-lodash.identity@^3.0.0:
+lodash.isnull@^3.0.0:
   version "3.0.0"
-  resolved "https://registry.yarnpkg.com/lodash.identity/-/lodash.identity-3.0.0.tgz#ad7bc6a4e647d79c972e1b80feef7af156267876"
+  resolved "https://registry.yarnpkg.com/lodash.isnull/-/lodash.isnull-3.0.0.tgz#fafbe59ea1dca27eed786534039dd84c2e07c56e"
 
-lodash.isplainobject@^4.0.6:
-  version "4.0.6"
-  resolved "https://registry.yarnpkg.com/lodash.isplainobject/-/lodash.isplainobject-4.0.6.tgz#7c526a52d89b45c45cc690b88163be0497f550cb"
+lodash.sortby@^4.7.0:
+  version "4.7.0"
+  resolved "https://registry.yarnpkg.com/lodash.sortby/-/lodash.sortby-4.7.0.tgz#edd14c824e2cc9c1e0b0a1b42bb5210516a42438"
 
 lodash.template@^4.0.2:
   version "4.4.0"
@@ -3827,7 +5058,7 @@ lodash.templatesettings@^4.0.0:
   dependencies:
     lodash._reinterpolate "~3.0.0"
 
-lodash@^4.17.1, lodash@^4.17.5, lodash@^4.2.1, lodash@^4.3.0, lodash@^4.5.1:
+lodash@^4.13.1, lodash@^4.17.1, lodash@^4.17.10, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.2.1, lodash@^4.3.0, lodash@^4.5.1:
   version "4.17.10"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.10.tgz#1b7793cf7259ea38fb3661d4d38b3260af8ae4e7"
 
@@ -3863,10 +5094,18 @@ lru-cache@^4.0.1:
     pseudomap "^1.0.2"
     yallist "^2.1.2"
 
+ltgt@2.2.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/ltgt/-/ltgt-2.2.0.tgz#b65ba5fcb349a29924c8e333f7c6a5562f2e4842"
+
 ltgt@2.2.1:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/ltgt/-/ltgt-2.2.1.tgz#f35ca91c493f7b73da0e07495304f17b31f87ee5"
 
+ltgt@~2.1.3:
+  version "2.1.3"
+  resolved "https://registry.yarnpkg.com/ltgt/-/ltgt-2.1.3.tgz#10851a06d9964b971178441c23c9e52698eece34"
+
 make-dir@^1.0.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/make-dir/-/make-dir-1.2.0.tgz#6d6a49eead4aae296c53bbf3a1a008bd6c89469b"
@@ -3877,6 +5116,12 @@ make-error@^1.1.1:
   version "1.3.4"
   resolved "https://registry.yarnpkg.com/make-error/-/make-error-1.3.4.tgz#19978ed575f9e9545d2ff8c13e33b5d18a67d535"
 
+makeerror@1.0.x:
+  version "1.0.11"
+  resolved "https://registry.yarnpkg.com/makeerror/-/makeerror-1.0.11.tgz#e01a5c9109f2af79660e4e8b9587790184f5a96c"
+  dependencies:
+    tmpl "1.0.x"
+
 map-cache@^0.2.2:
   version "0.2.2"
   resolved "https://registry.yarnpkg.com/map-cache/-/map-cache-0.2.2.tgz#c32abd0bd6525d9b051645bb4f26ac5dc98a0dbf"
@@ -3899,11 +5144,32 @@ map-visit@^1.0.0:
   dependencies:
     object-visit "^1.0.0"
 
-md5-hex@^1.2.0:
-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/md5-hex/-/md5-hex-1.3.0.tgz#d2c4afe983c4370662179b8cad145219135046c4"
+math-clamp-x@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/math-clamp-x/-/math-clamp-x-1.2.0.tgz#8b537be0645bbba7ee73ee16091e7d6018c5edcf"
   dependencies:
-    md5-o-matic "^0.1.1"
+    to-number-x "^2.0.0"
+
+math-random@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/math-random/-/math-random-1.0.1.tgz#8b3aac588b8a66e4975e3cdea67f7bb329601fac"
+
+math-sign-x@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/math-sign-x/-/math-sign-x-3.0.0.tgz#d5286022b48e150c384729a86042e0835264c3ed"
+  dependencies:
+    is-nan-x "^1.0.1"
+    to-number-x "^2.0.0"
+
+max-safe-integer@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/max-safe-integer/-/max-safe-integer-1.0.1.tgz#f38060be2c563d8c02e6d48af39122fd83b6f410"
+
+md5-hex@^1.2.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/md5-hex/-/md5-hex-1.3.0.tgz#d2c4afe983c4370662179b8cad145219135046c4"
+  dependencies:
+    md5-o-matic "^0.1.1"
 
 md5-o-matic@^0.1.1:
   version "0.1.1"
@@ -3919,6 +5185,16 @@ mem@^1.1.0:
   dependencies:
     mimic-fn "^1.0.0"
 
+memdown@1.2.4:
+  version "1.2.4"
+  resolved "https://registry.yarnpkg.com/memdown/-/memdown-1.2.4.tgz#cd9a34aaf074d53445a271108eb4b8dd4ec0f27f"
+  dependencies:
+    abstract-leveldown "2.4.1"
+    functional-red-black-tree "^1.0.1"
+    immediate "^3.2.3"
+    inherits "~2.0.1"
+    ltgt "~2.1.3"
+
 meow@^3.3.0:
   version "3.7.0"
   resolved "https://registry.yarnpkg.com/meow/-/meow-3.7.0.tgz#72cb668b425228290abbfa856892587308a801fb"
@@ -3958,10 +5234,20 @@ merge-source-map@^1.1.0:
   dependencies:
     source-map "^0.6.1"
 
+merge-stream@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/merge-stream/-/merge-stream-1.0.1.tgz#4041202d508a342ba00174008df0c251b8c135e1"
+  dependencies:
+    readable-stream "^2.0.1"
+
 merge2@^1.2.1:
   version "1.2.2"
   resolved "https://registry.yarnpkg.com/merge2/-/merge2-1.2.2.tgz#03212e3da8d86c4d8523cebd6318193414f94e34"
 
+merge@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/merge/-/merge-1.2.0.tgz#7531e39d4949c281a66b8c5a6e0265e8b05894da"
+
 methods@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/methods/-/methods-1.1.2.tgz#5529a4d67654134edcc5266656835b0f851afcee"
@@ -3970,6 +5256,24 @@ micro-memoize@^2.0.3:
   version "2.0.3"
   resolved "https://registry.yarnpkg.com/micro-memoize/-/micro-memoize-2.0.3.tgz#5122131971eae6c69249a8a63a91b7b5cee20111"
 
+micromatch@^2.3.11:
+  version "2.3.11"
+  resolved "https://registry.yarnpkg.com/micromatch/-/micromatch-2.3.11.tgz#86677c97d1720b363431d04d0d15293bd38c1565"
+  dependencies:
+    arr-diff "^2.0.0"
+    array-unique "^0.2.1"
+    braces "^1.8.2"
+    expand-brackets "^0.1.4"
+    extglob "^0.3.1"
+    filename-regex "^2.0.0"
+    is-extglob "^1.0.0"
+    is-glob "^2.0.1"
+    kind-of "^3.0.2"
+    normalize-path "^2.0.1"
+    object.omit "^2.0.0"
+    parse-glob "^3.0.4"
+    regex-cache "^0.4.2"
+
 micromatch@^3.1.10, micromatch@^3.1.4, micromatch@^3.1.8:
   version "3.1.10"
   resolved "https://registry.yarnpkg.com/micromatch/-/micromatch-3.1.10.tgz#70859bc95c9840952f359a068a3fc49f9ecfac23"
@@ -3988,6 +5292,10 @@ micromatch@^3.1.10, micromatch@^3.1.4, micromatch@^3.1.8:
     snapdragon "^0.8.1"
     to-regex "^3.0.2"
 
+"mime-db@>= 1.34.0 < 2":
+  version "1.36.0"
+  resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.36.0.tgz#5020478db3c7fe93aad7bbcc4dcf869c43363397"
+
 mime-db@~1.33.0:
   version "1.33.0"
   resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.33.0.tgz#a3492050a5cb9b63450541e39d9788d2272783db"
@@ -4034,7 +5342,7 @@ minimalistic-crypto-utils@^1.0.0, minimalistic-crypto-utils@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/minimalistic-crypto-utils/-/minimalistic-crypto-utils-1.0.1.tgz#f6c00c1c0b082246e5c4d99dfb8c7c083b2b582a"
 
-"minimatch@2 || 3", minimatch@3.0.4, minimatch@^3.0.0, minimatch@^3.0.2, minimatch@^3.0.4:
+"minimatch@2 || 3", minimatch@3.0.4, minimatch@^3.0.0, minimatch@^3.0.2, minimatch@^3.0.3, minimatch@^3.0.4:
   version "3.0.4"
   resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-3.0.4.tgz#5166e286457f03306064be5497e8dbb0c3d32083"
   dependencies:
@@ -4051,7 +5359,7 @@ minimist@0.0.8:
   version "0.0.8"
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.0.8.tgz#857fcabfc3397d2625b8228262e86aa7a011b05d"
 
-minimist@1.2.0, minimist@^1.1.3, minimist@^1.2.0:
+minimist@1.2.0, minimist@^1.1.1, minimist@^1.1.3, minimist@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.0.tgz#a35008b20f41383eec1fb914f4cd5df79a264284"
 
@@ -4147,6 +5455,10 @@ ms@2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.0.0.tgz#5608aeadfc00be6c2901df5f9861788de0d597c8"
 
+ms@2.1.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.1.tgz#30a5864eb3ebb0a66f2ebe6d727af06a09d86e0a"
+
 multimatch@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/multimatch/-/multimatch-2.1.0.tgz#9c7906a22fb4c02919e2f5f75161b4cdbd4b2a2b"
@@ -4156,6 +5468,15 @@ multimatch@^2.1.0:
     arrify "^1.0.0"
     minimatch "^3.0.0"
 
+multiparty@^4.1.3:
+  version "4.2.1"
+  resolved "https://registry.yarnpkg.com/multiparty/-/multiparty-4.2.1.tgz#d9b6c46d8b8deab1ee70c734b0af771dd46e0b13"
+  dependencies:
+    fd-slicer "1.1.0"
+    http-errors "~1.7.0"
+    safe-buffer "5.1.2"
+    uid-safe "2.1.5"
+
 multistream@2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/multistream/-/multistream-2.1.0.tgz#625c267d5c44424ad6294788b5bb4da3dcb32f1d"
@@ -4167,10 +5488,18 @@ mute-stream@0.0.7, mute-stream@~0.0.4:
   version "0.0.7"
   resolved "https://registry.yarnpkg.com/mute-stream/-/mute-stream-0.0.7.tgz#3075ce93bc21b8fab43e1bc4da7e8115ed1e7bab"
 
+nan-x@^1.0.0:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/nan-x/-/nan-x-1.0.2.tgz#5f34e9d3115242486219eee3c8bc49fd2425b19a"
+
 nan@2.10.0, nan@^2.9.2, nan@~2.10.0:
   version "2.10.0"
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.10.0.tgz#96d0cd610ebd58d4b4de9cc0c6828cda99c7548f"
 
+nan@~2.7.0:
+  version "2.7.0"
+  resolved "https://registry.yarnpkg.com/nan/-/nan-2.7.0.tgz#d95bf721ec877e08db276ed3fc6eb78f9083ad46"
+
 nan@~2.8.0:
   version "2.8.0"
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.8.0.tgz#ed715f3fe9de02b57a5e6252d90a96675e1f085a"
@@ -4196,6 +5525,10 @@ nanomatch@^1.2.9:
     snapdragon "^0.8.1"
     to-regex "^3.0.1"
 
+natural-compare@^1.4.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/natural-compare/-/natural-compare-1.4.0.tgz#4abebfeed7541f2c27acfb29bdbbd15c8d5ba4f7"
+
 needle@^2.2.0:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/needle/-/needle-2.2.1.tgz#b5e325bd3aae8c2678902fa296f729455d1d3a7d"
@@ -4204,6 +5537,14 @@ needle@^2.2.0:
     iconv-lite "^0.4.4"
     sax "^1.2.4"
 
+needle@^2.2.1:
+  version "2.2.2"
+  resolved "https://registry.yarnpkg.com/needle/-/needle-2.2.2.tgz#1120ca4c41f2fcc6976fd28a8968afe239929418"
+  dependencies:
+    debug "^2.1.2"
+    iconv-lite "^0.4.4"
+    sax "^1.2.4"
+
 negotiator@0.6.1:
   version "0.6.1"
   resolved "https://registry.yarnpkg.com/negotiator/-/negotiator-0.6.1.tgz#2b327184e8992101177b28563fb5e7102acd0ca9"
@@ -4246,6 +5587,34 @@ node-gyp@^3.6.2:
     tar "^2.0.0"
     which "1"
 
+node-int64@^0.4.0:
+  version "0.4.0"
+  resolved "https://registry.yarnpkg.com/node-int64/-/node-int64-0.4.0.tgz#87a9065cdb355d3182d8f94ce11188b825c68a3b"
+
+node-notifier@^5.2.1:
+  version "5.2.1"
+  resolved "https://registry.yarnpkg.com/node-notifier/-/node-notifier-5.2.1.tgz#fa313dd08f5517db0e2502e5758d664ac69f9dea"
+  dependencies:
+    growly "^1.3.0"
+    semver "^5.4.1"
+    shellwords "^0.1.1"
+    which "^1.3.0"
+
+node-pre-gyp@^0.10.0:
+  version "0.10.3"
+  resolved "https://registry.yarnpkg.com/node-pre-gyp/-/node-pre-gyp-0.10.3.tgz#3070040716afdc778747b61b6887bf78880b80fc"
+  dependencies:
+    detect-libc "^1.0.2"
+    mkdirp "^0.5.1"
+    needle "^2.2.1"
+    nopt "^4.0.1"
+    npm-packlist "^1.1.6"
+    npmlog "^4.0.2"
+    rc "^1.2.7"
+    rimraf "^2.6.1"
+    semver "^5.3.0"
+    tar "^4"
+
 node-pre-gyp@^0.9.0:
   version "0.9.1"
   resolved "https://registry.yarnpkg.com/node-pre-gyp/-/node-pre-gyp-0.9.1.tgz#f11c07516dd92f87199dbc7e1838eab7cd56c9e0"
@@ -4261,6 +5630,22 @@ node-pre-gyp@^0.9.0:
     semver "^5.3.0"
     tar "^4"
 
+node-pre-gyp@~0.6.38:
+  version "0.6.39"
+  resolved "https://registry.yarnpkg.com/node-pre-gyp/-/node-pre-gyp-0.6.39.tgz#c00e96860b23c0e1420ac7befc5044e1d78d8649"
+  dependencies:
+    detect-libc "^1.0.2"
+    hawk "3.1.3"
+    mkdirp "^0.5.1"
+    nopt "^4.0.1"
+    npmlog "^4.0.2"
+    rc "^1.1.7"
+    request "2.81.0"
+    rimraf "^2.6.1"
+    semver "^5.3.0"
+    tar "^2.2.1"
+    tar-pack "^3.4.0"
+
 nodemon@^1.14.12:
   version "1.17.4"
   resolved "https://registry.yarnpkg.com/nodemon/-/nodemon-1.17.4.tgz#243ff9c69ffbf1175f2460f9b023f35a072c15e9"
@@ -4276,6 +5661,10 @@ nodemon@^1.14.12:
     undefsafe "^2.0.2"
     update-notifier "^2.3.0"
 
+noop-fn@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/noop-fn/-/noop-fn-1.0.0.tgz#5f33d47f13d2150df93e0cb036699e982f78ffbf"
+
 noop-logger@^0.1.1:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/noop-logger/-/noop-logger-0.1.1.tgz#94a2b1633c4f1317553007d8966fd0e841b6a4c2"
@@ -4308,12 +5697,20 @@ normalize-package-data@^2.0.0, normalize-package-data@^2.3.0, normalize-package-
     semver "2 || 3 || 4 || 5"
     validate-npm-package-license "^3.0.1"
 
-normalize-path@^2.1.1:
+normalize-path@^2.0.1, normalize-path@^2.1.1:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/normalize-path/-/normalize-path-2.1.1.tgz#1ab28b556e198363a8c1a6f7e6fa20137fe6aed9"
   dependencies:
     remove-trailing-separator "^1.0.1"
 
+normalize-space-x@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/normalize-space-x/-/normalize-space-x-3.0.0.tgz#17907d6c7c724a4f9567471cbb319553bc0f8882"
+  dependencies:
+    cached-constructors-x "^1.0.0"
+    trim-x "^3.0.0"
+    white-space-x "^3.0.0"
+
 now-and-later@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/now-and-later/-/now-and-later-2.0.0.tgz#bc61cbb456d79cb32207ce47ca05136ff2e7d6ee"
@@ -4379,6 +5776,10 @@ number-to-bn@1.7.0, number-to-bn@^1.7.0:
     bn.js "4.11.6"
     strip-hex-prefix "1.0.0"
 
+nwsapi@^2.0.7:
+  version "2.0.8"
+  resolved "https://registry.yarnpkg.com/nwsapi/-/nwsapi-2.0.8.tgz#e3603579b7e162b3dbedae4fb24e46f771d8fa24"
+
 nyc@^12.0.2:
   version "12.0.2"
   resolved "https://registry.yarnpkg.com/nyc/-/nyc-12.0.2.tgz#8a4a4ed690966c11ec587ff87eea0c12c974ba99"
@@ -4435,6 +5836,21 @@ object-copy@^0.1.0:
     define-property "^0.2.5"
     kind-of "^3.0.3"
 
+object-get-own-property-descriptor-x@^3.2.0:
+  version "3.2.0"
+  resolved "https://registry.yarnpkg.com/object-get-own-property-descriptor-x/-/object-get-own-property-descriptor-x-3.2.0.tgz#464585ad03e66108ed166c99325b8d2c5ba93712"
+  dependencies:
+    attempt-x "^1.1.0"
+    has-own-property-x "^3.1.1"
+    has-symbol-support-x "^1.4.1"
+    is-falsey-x "^1.0.0"
+    is-index-x "^1.0.0"
+    is-primitive "^2.0.0"
+    is-string "^1.0.4"
+    property-is-enumerable-x "^1.1.0"
+    to-object-x "^1.4.1"
+    to-property-key-x "^2.0.1"
+
 object-keys@^1.0.11, object-keys@^1.0.6, object-keys@^1.0.8:
   version "1.0.12"
   resolved "https://registry.yarnpkg.com/object-keys/-/object-keys-1.0.12.tgz#09c53855377575310cca62f55bb334abff7b3ed2"
@@ -4454,19 +5870,37 @@ object.assign@^4.0.4:
     has-symbols "^1.0.0"
     object-keys "^1.0.11"
 
+object.getownpropertydescriptors@^2.0.3:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/object.getownpropertydescriptors/-/object.getownpropertydescriptors-2.0.3.tgz#8758c846f5b407adab0f236e0986f14b051caa16"
+  dependencies:
+    define-properties "^1.1.2"
+    es-abstract "^1.5.1"
+
+object.omit@^2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/object.omit/-/object.omit-2.0.1.tgz#1a9c744829f39dbb858c76ca3579ae2a54ebd1fa"
+  dependencies:
+    for-own "^0.1.4"
+    is-extendable "^0.1.1"
+
 object.pick@^1.3.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/object.pick/-/object.pick-1.3.0.tgz#87a10ac4c1694bd2e1cbf53591a66141fb5dd747"
   dependencies:
     isobject "^3.0.1"
 
-on-finished@~2.3.0:
+on-finished@^2.3.0, on-finished@~2.3.0:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/on-finished/-/on-finished-2.3.0.tgz#20f1336481b083cd75337992a16971aa2d906947"
   dependencies:
     ee-first "1.1.1"
 
-once@^1.3.0, once@^1.3.1, once@^1.3.2, once@^1.4.0:
+on-headers@~1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/on-headers/-/on-headers-1.0.1.tgz#928f5d0f470d49342651ea6794b0857c100693f7"
+
+once@^1.3.0, once@^1.3.1, once@^1.3.2, once@^1.3.3, once@^1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/once/-/once-1.4.0.tgz#583b1aa775961d4b113ac17d9c50baef9dd76bd1"
   dependencies:
@@ -4612,6 +6046,15 @@ parse-github-repo-url@^1.3.0:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/parse-github-repo-url/-/parse-github-repo-url-1.4.1.tgz#9e7d8bb252a6cb6ba42595060b7bf6df3dbc1f50"
 
+parse-glob@^3.0.4:
+  version "3.0.4"
+  resolved "https://registry.yarnpkg.com/parse-glob/-/parse-glob-3.0.4.tgz#b2c376cfb11f35513badd173ef0bb6e3a388391c"
+  dependencies:
+    glob-base "^0.3.0"
+    is-dotfile "^1.0.0"
+    is-extglob "^1.0.0"
+    is-glob "^2.0.0"
+
 parse-headers@^2.0.0:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/parse-headers/-/parse-headers-2.0.1.tgz#6ae83a7aa25a9d9b700acc28698cd1f1ed7e9536"
@@ -4619,6 +6062,15 @@ parse-headers@^2.0.0:
     for-each "^0.3.2"
     trim "0.0.1"
 
+parse-int-x@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/parse-int-x/-/parse-int-x-2.0.0.tgz#9f979d4115930df2f4706a41810b9c712405552f"
+  dependencies:
+    cached-constructors-x "^1.0.0"
+    nan-x "^1.0.0"
+    to-string-x "^1.4.2"
+    trim-left-x "^3.0.0"
+
 parse-json@^2.2.0:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/parse-json/-/parse-json-2.2.0.tgz#f480f40434ef80741f8469099f8dea18f55a4dc9"
@@ -4632,6 +6084,10 @@ parse-json@^4.0.0:
     error-ex "^1.3.1"
     json-parse-better-errors "^1.0.1"
 
+parse5@4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/parse5/-/parse5-4.0.0.tgz#6d78656e3da8d78b4ec0b906f7c08ef1dfe3f608"
+
 parseurl@~1.3.2:
   version "1.3.2"
   resolved "https://registry.yarnpkg.com/parseurl/-/parseurl-1.3.2.tgz#fc289d4ed8993119460c156253262cdc8de65bf3"
@@ -4654,7 +6110,7 @@ path-exists@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/path-exists/-/path-exists-3.0.0.tgz#ce0ebeaa5f78cb18925ea7d810d7b59b010fd515"
 
-path-is-absolute@^1.0.0:
+path-is-absolute@^1.0.0, path-is-absolute@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/path-is-absolute/-/path-is-absolute-1.0.1.tgz#174b9268735534ffbc7ace6bf53a5a9e1b5c5f5f"
 
@@ -4698,6 +6154,10 @@ pause-stream@0.0.11:
   dependencies:
     through "~2.3"
 
+pend@~1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/pend/-/pend-1.2.0.tgz#7a57eb550a6783f9115331fcf4663d5c8e007a50"
+
 performance-now@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/performance-now/-/performance-now-0.2.0.tgz#33ef30c5c77d4ea21c5a53869d91b56d8f2555e5"
@@ -4807,6 +6267,10 @@ pkg@^4.3.1:
     simple-bufferstream "1.0.0"
     stream-meter "1.0.4"
 
+pn@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/pn/-/pn-1.1.0.tgz#e2f4cef0e219f463c179ab37463e4e1ecdccbafb"
+
 posix-character-classes@^0.1.0:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/posix-character-classes/-/posix-character-classes-0.1.1.tgz#01eac0fe3b5af71a2a6c02feabb8c1fef7e00eab"
@@ -4829,6 +6293,18 @@ postgres-interval@^1.1.0:
   dependencies:
     xtend "^4.0.0"
 
+pouchdb-abstract-mapreduce@6.4.3:
+  version "6.4.3"
+  resolved "https://registry.yarnpkg.com/pouchdb-abstract-mapreduce/-/pouchdb-abstract-mapreduce-6.4.3.tgz#0310053812d16ff9545a3db43f5e38a67a0133d7"
+  dependencies:
+    pouchdb-binary-utils "6.4.3"
+    pouchdb-collate "6.4.3"
+    pouchdb-collections "6.4.3"
+    pouchdb-mapreduce-utils "6.4.3"
+    pouchdb-md5 "6.4.3"
+    pouchdb-promise "6.4.3"
+    pouchdb-utils "6.4.3"
+
 pouchdb-abstract-mapreduce@7.0.0:
   version "7.0.0"
   resolved "https://registry.yarnpkg.com/pouchdb-abstract-mapreduce/-/pouchdb-abstract-mapreduce-7.0.0.tgz#946d79073c9795ca03c9b5c318a64372422e8740"
@@ -4842,6 +6318,100 @@ pouchdb-abstract-mapreduce@7.0.0:
     pouchdb-md5 "7.0.0"
     pouchdb-utils "7.0.0"
 
+pouchdb-adapter-http@^6.4.1:
+  version "6.4.3"
+  resolved "https://registry.yarnpkg.com/pouchdb-adapter-http/-/pouchdb-adapter-http-6.4.3.tgz#0bc713e4d5f5b7bbaa4dc509d417d38b7733a71f"
+  dependencies:
+    argsarray "0.0.1"
+    pouchdb-ajax "6.4.3"
+    pouchdb-binary-utils "6.4.3"
+    pouchdb-errors "6.4.3"
+    pouchdb-promise "6.4.3"
+    pouchdb-utils "6.4.3"
+
+pouchdb-adapter-leveldb-core@6.4.3, pouchdb-adapter-leveldb-core@^6.4.1:
+  version "6.4.3"
+  resolved "https://registry.yarnpkg.com/pouchdb-adapter-leveldb-core/-/pouchdb-adapter-leveldb-core-6.4.3.tgz#0b623fc12e63acbf5606508ba2008e501803076a"
+  dependencies:
+    argsarray "0.0.1"
+    buffer-from "0.1.1"
+    double-ended-queue "2.1.0-0"
+    levelup "2.0.1"
+    pouchdb-adapter-utils "6.4.3"
+    pouchdb-binary-utils "6.4.3"
+    pouchdb-collections "6.4.3"
+    pouchdb-errors "6.4.3"
+    pouchdb-json "6.4.3"
+    pouchdb-md5 "6.4.3"
+    pouchdb-merge "6.4.3"
+    pouchdb-promise "6.4.3"
+    pouchdb-utils "6.4.3"
+    sublevel-pouchdb "6.4.3"
+    through2 "2.0.3"
+
+pouchdb-adapter-leveldb@^6.4.1:
+  version "6.4.3"
+  resolved "https://registry.yarnpkg.com/pouchdb-adapter-leveldb/-/pouchdb-adapter-leveldb-6.4.3.tgz#0fe0f69b090df849c15b54e09a0e20db13cfa581"
+  dependencies:
+    level "2.1.1"
+    level-write-stream "1.0.0"
+    leveldown "2.1.1"
+    pouchdb-adapter-leveldb-core "6.4.3"
+    pouchdb-merge "6.4.3"
+    pouchdb-utils "6.4.3"
+    through2 "2.0.3"
+
+pouchdb-adapter-memory@^6.4.1:
+  version "6.4.3"
+  resolved "https://registry.yarnpkg.com/pouchdb-adapter-memory/-/pouchdb-adapter-memory-6.4.3.tgz#06edb687be9d063b27e9b58ca30ea1a08a9b94f4"
+  dependencies:
+    memdown "1.2.4"
+    pouchdb-adapter-leveldb-core "6.4.3"
+    pouchdb-utils "6.4.3"
+
+pouchdb-adapter-node-websql@^6.4.1:
+  version "6.4.3"
+  resolved "https://registry.yarnpkg.com/pouchdb-adapter-node-websql/-/pouchdb-adapter-node-websql-6.4.3.tgz#0e6cc29945f363f0130a798ffc15c3483058ceff"
+  dependencies:
+    pouchdb-adapter-websql-core "6.4.3"
+    pouchdb-utils "6.4.3"
+    websql "0.4.4"
+
+pouchdb-adapter-utils@6.4.3:
+  version "6.4.3"
+  resolved "https://registry.yarnpkg.com/pouchdb-adapter-utils/-/pouchdb-adapter-utils-6.4.3.tgz#384bb1bcd37dc7d473016eb450cec53d665bcae4"
+  dependencies:
+    pouchdb-binary-utils "6.4.3"
+    pouchdb-collections "6.4.3"
+    pouchdb-errors "6.4.3"
+    pouchdb-md5 "6.4.3"
+    pouchdb-merge "6.4.3"
+    pouchdb-promise "6.4.3"
+    pouchdb-utils "6.4.3"
+
+pouchdb-adapter-websql-core@6.4.3:
+  version "6.4.3"
+  resolved "https://registry.yarnpkg.com/pouchdb-adapter-websql-core/-/pouchdb-adapter-websql-core-6.4.3.tgz#8f992a46ca8a6870440d0c8699cfaa7ac1c382c4"
+  dependencies:
+    pouchdb-adapter-utils "6.4.3"
+    pouchdb-binary-utils "6.4.3"
+    pouchdb-collections "6.4.3"
+    pouchdb-errors "6.4.3"
+    pouchdb-json "6.4.3"
+    pouchdb-merge "6.4.3"
+    pouchdb-utils "6.4.3"
+
+pouchdb-ajax@6.4.3:
+  version "6.4.3"
+  resolved "https://registry.yarnpkg.com/pouchdb-ajax/-/pouchdb-ajax-6.4.3.tgz#642aea957925cb9fcd6493d2f39820c34bca3e88"
+  dependencies:
+    buffer-from "0.1.1"
+    pouchdb-binary-utils "6.4.3"
+    pouchdb-errors "6.4.3"
+    pouchdb-promise "6.4.3"
+    pouchdb-utils "6.4.3"
+    request "2.83.0"
+
 pouchdb-all-dbs@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/pouchdb-all-dbs/-/pouchdb-all-dbs-1.0.2.tgz#8fa1aa4b01665e00e0da9c61bf6dbb99eca05d3c"
@@ -4852,26 +6422,117 @@ pouchdb-all-dbs@^1.0.2:
     pouchdb-promise "5.4.3"
     tiny-queue "^0.2.0"
 
+pouchdb-auth@4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/pouchdb-auth/-/pouchdb-auth-4.1.0.tgz#a3dc3c2d6e62a5d898ae79f177bebe02ddf1b12d"
+  dependencies:
+    base64url "^3.0.0"
+    couchdb-calculate-session-id "^1.1.0"
+    crypto-lite "^0.2.0"
+    pouchdb-bulkdocs-wrapper "4.1.0"
+    pouchdb-plugin-error "4.1.0"
+    pouchdb-promise "^6.4.1"
+    pouchdb-req-http-query "4.1.0"
+    pouchdb-system-db "4.1.0"
+    pouchdb-validation "4.1.0"
+    pouchdb-wrappers "4.1.0"
+    promise-nodify "^1.0.2"
+    secure-random "^1.1.1"
+
+pouchdb-binary-utils@6.4.3:
+  version "6.4.3"
+  resolved "https://registry.yarnpkg.com/pouchdb-binary-utils/-/pouchdb-binary-utils-6.4.3.tgz#ba6d9b9d289a359d47b53c1ec017fd9715a777a9"
+  dependencies:
+    buffer-from "0.1.1"
+
 pouchdb-binary-utils@7.0.0:
   version "7.0.0"
   resolved "https://registry.yarnpkg.com/pouchdb-binary-utils/-/pouchdb-binary-utils-7.0.0.tgz#cb71a288b09572a231f6bab1b4aed201c4d219a7"
   dependencies:
     buffer-from "1.1.0"
 
+pouchdb-bulkdocs-wrapper@4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/pouchdb-bulkdocs-wrapper/-/pouchdb-bulkdocs-wrapper-4.1.0.tgz#d3ab9e06b7c10f0292a70a3d5ec0bc4b55327b3b"
+  dependencies:
+    pouchdb-promise "^6.4.1"
+
+pouchdb-changes-filter@6.4.3:
+  version "6.4.3"
+  resolved "https://registry.yarnpkg.com/pouchdb-changes-filter/-/pouchdb-changes-filter-6.4.3.tgz#01fcf9dbc9d742fe5060624bb39bc459a3d11a1a"
+  dependencies:
+    pouchdb-errors "6.4.3"
+    pouchdb-selector-core "6.4.3"
+    pouchdb-utils "6.4.3"
+
+pouchdb-changeslike-wrapper@4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/pouchdb-changeslike-wrapper/-/pouchdb-changeslike-wrapper-4.1.0.tgz#5aecab31006acd2dbc96da7eaa99b1da42379510"
+
+pouchdb-checkpointer@6.4.3:
+  version "6.4.3"
+  resolved "https://registry.yarnpkg.com/pouchdb-checkpointer/-/pouchdb-checkpointer-6.4.3.tgz#af0e429ca3fe8b86000412f4fc6e9ea98d956992"
+  dependencies:
+    pouchdb-collate "6.4.3"
+    pouchdb-promise "6.4.3"
+    pouchdb-utils "6.4.3"
+
+pouchdb-collate@6.4.3:
+  version "6.4.3"
+  resolved "https://registry.yarnpkg.com/pouchdb-collate/-/pouchdb-collate-6.4.3.tgz#55a77a1a3e1c2cf86fe4d02aea171e10c2a3f944"
+
 pouchdb-collate@7.0.0:
   version "7.0.0"
   resolved "https://registry.yarnpkg.com/pouchdb-collate/-/pouchdb-collate-7.0.0.tgz#4f9a0a03c236f1677a971c400b79b7baf6379a4d"
 
+pouchdb-collections@6.4.3, pouchdb-collections@^6.4.1:
+  version "6.4.3"
+  resolved "https://registry.yarnpkg.com/pouchdb-collections/-/pouchdb-collections-6.4.3.tgz#2b70ca3143134c361dba6e466518b4f4d8e92ff4"
+
 pouchdb-collections@7.0.0:
   version "7.0.0"
   resolved "https://registry.yarnpkg.com/pouchdb-collections/-/pouchdb-collections-7.0.0.tgz#fd1f632337dc6301b0ff8649732ca79204e41780"
 
+pouchdb-collections@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/pouchdb-collections/-/pouchdb-collections-1.0.1.tgz#fe63a17da977611abef7cb8026cb1a9553fd8359"
+
+pouchdb-core@^6.4.1:
+  version "6.4.3"
+  resolved "https://registry.yarnpkg.com/pouchdb-core/-/pouchdb-core-6.4.3.tgz#8a25d60f95b6861191228327e56c04a661389426"
+  dependencies:
+    argsarray "0.0.1"
+    inherits "2.0.3"
+    pouchdb-changes-filter "6.4.3"
+    pouchdb-collections "6.4.3"
+    pouchdb-debug "6.4.3"
+    pouchdb-errors "6.4.3"
+    pouchdb-merge "6.4.3"
+    pouchdb-promise "6.4.3"
+    pouchdb-utils "6.4.3"
+
+pouchdb-debug@6.4.3:
+  version "6.4.3"
+  resolved "https://registry.yarnpkg.com/pouchdb-debug/-/pouchdb-debug-6.4.3.tgz#d5ee0d0f638c455ef947fe6658030db1480c72c0"
+  dependencies:
+    debug "3.1.0"
+
+pouchdb-errors@6.4.3:
+  version "6.4.3"
+  resolved "https://registry.yarnpkg.com/pouchdb-errors/-/pouchdb-errors-6.4.3.tgz#9fa4a13f64ee50c8d593e3235b18b1458977f8d1"
+  dependencies:
+    inherits "2.0.3"
+
 pouchdb-errors@7.0.0:
   version "7.0.0"
   resolved "https://registry.yarnpkg.com/pouchdb-errors/-/pouchdb-errors-7.0.0.tgz#4e2a5a8b82af20cbe5f9970ca90b7ec74563caa0"
   dependencies:
     inherits "2.0.3"
 
+pouchdb-fauxton@^0.0.6:
+  version "0.0.6"
+  resolved "https://registry.yarnpkg.com/pouchdb-fauxton/-/pouchdb-fauxton-0.0.6.tgz#fcfae265a3d621e913ebd035eec338a4efa92aa1"
+
 pouchdb-fetch@7.0.0:
   version "7.0.0"
   resolved "https://registry.yarnpkg.com/pouchdb-fetch/-/pouchdb-fetch-7.0.0.tgz#6b56cc49863837f8d5e38b0956ace03f1fcaf8e0"
@@ -4879,6 +6540,17 @@ pouchdb-fetch@7.0.0:
     fetch-cookie "0.7.0"
     node-fetch "^2.0.0"
 
+pouchdb-find@^6.4.1:
+  version "6.4.3"
+  resolved "https://registry.yarnpkg.com/pouchdb-find/-/pouchdb-find-6.4.3.tgz#1d0128306071434a5e397bb14ce69c831356c95e"
+  dependencies:
+    pouchdb-abstract-mapreduce "6.4.3"
+    pouchdb-collate "6.4.3"
+    pouchdb-md5 "6.4.3"
+    pouchdb-promise "6.4.3"
+    pouchdb-selector-core "6.4.3"
+    pouchdb-utils "6.4.3"
+
 pouchdb-find@^7.0.0:
   version "7.0.0"
   resolved "https://registry.yarnpkg.com/pouchdb-find/-/pouchdb-find-7.0.0.tgz#f390c3f7a9455e700eb178eb89b235aaf7dc3beb"
@@ -4891,6 +6563,41 @@ pouchdb-find@^7.0.0:
     pouchdb-selector-core "7.0.0"
     pouchdb-utils "7.0.0"
 
+pouchdb-generate-replication-id@6.4.3:
+  version "6.4.3"
+  resolved "https://registry.yarnpkg.com/pouchdb-generate-replication-id/-/pouchdb-generate-replication-id-6.4.3.tgz#a11806f511991389c641e81ed46e7460f75bc570"
+  dependencies:
+    pouchdb-collate "6.4.3"
+    pouchdb-md5 "6.4.3"
+    pouchdb-promise "6.4.3"
+
+pouchdb-json@6.4.3:
+  version "6.4.3"
+  resolved "https://registry.yarnpkg.com/pouchdb-json/-/pouchdb-json-6.4.3.tgz#a1702c8eb9d656f6566920aaec9fb3e7e1265132"
+  dependencies:
+    vuvuzela "1.0.3"
+
+pouchdb-list@4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/pouchdb-list/-/pouchdb-list-4.1.0.tgz#a333c3066987c0d8e50c57a5aec2d3c20150bbe0"
+  dependencies:
+    couchdb-objects "4.1.0"
+    couchdb-render "4.1.0"
+    extend "^3.0.0"
+    pouchdb-plugin-error "4.1.0"
+    pouchdb-promise "^6.4.1"
+    pouchdb-req-http-query "4.1.0"
+    promise-nodify "^1.0.2"
+
+pouchdb-mapreduce-utils@6.4.3:
+  version "6.4.3"
+  resolved "https://registry.yarnpkg.com/pouchdb-mapreduce-utils/-/pouchdb-mapreduce-utils-6.4.3.tgz#1245e1ca4d3f216d336030c669dd97d6597442e4"
+  dependencies:
+    argsarray "0.0.1"
+    inherits "2.0.3"
+    pouchdb-collections "6.4.3"
+    pouchdb-utils "6.4.3"
+
 pouchdb-mapreduce-utils@7.0.0:
   version "7.0.0"
   resolved "https://registry.yarnpkg.com/pouchdb-mapreduce-utils/-/pouchdb-mapreduce-utils-7.0.0.tgz#ff342e9d515d4c9cf0b19ad85c78f10f2568493b"
@@ -4900,6 +6607,21 @@ pouchdb-mapreduce-utils@7.0.0:
     pouchdb-collections "7.0.0"
     pouchdb-utils "7.0.0"
 
+pouchdb-mapreduce@^6.4.1:
+  version "6.4.3"
+  resolved "https://registry.yarnpkg.com/pouchdb-mapreduce/-/pouchdb-mapreduce-6.4.3.tgz#941bcda91356196cc32fbb7eb769650e857cc280"
+  dependencies:
+    pouchdb-abstract-mapreduce "6.4.3"
+    pouchdb-mapreduce-utils "6.4.3"
+    pouchdb-utils "6.4.3"
+
+pouchdb-md5@6.4.3:
+  version "6.4.3"
+  resolved "https://registry.yarnpkg.com/pouchdb-md5/-/pouchdb-md5-6.4.3.tgz#d414315366e4bb428fb6048a25655b1eca591797"
+  dependencies:
+    pouchdb-binary-utils "6.4.3"
+    spark-md5 "3.0.0"
+
 pouchdb-md5@7.0.0:
   version "7.0.0"
   resolved "https://registry.yarnpkg.com/pouchdb-md5/-/pouchdb-md5-7.0.0.tgz#935dc6bb507a5f3978fb653ca5790331bae67c96"
@@ -4907,18 +6629,98 @@ pouchdb-md5@7.0.0:
     pouchdb-binary-utils "7.0.0"
     spark-md5 "3.0.0"
 
+pouchdb-merge@6.4.3:
+  version "6.4.3"
+  resolved "https://registry.yarnpkg.com/pouchdb-merge/-/pouchdb-merge-6.4.3.tgz#4ef901f4aaa27be6aec0108998a127fe55bb0628"
+
+pouchdb-plugin-error@4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/pouchdb-plugin-error/-/pouchdb-plugin-error-4.1.0.tgz#eda55021865971b226f7c63d609202473238bbba"
+
 pouchdb-promise@5.4.3:
   version "5.4.3"
   resolved "https://registry.yarnpkg.com/pouchdb-promise/-/pouchdb-promise-5.4.3.tgz#331d670b1989d5a03f268811214f27f54150cb2b"
   dependencies:
     lie "3.0.4"
 
-pouchdb-promise@^6.1.2:
+pouchdb-promise@6.4.3, pouchdb-promise@^6.1.2, pouchdb-promise@^6.4.1:
   version "6.4.3"
   resolved "https://registry.yarnpkg.com/pouchdb-promise/-/pouchdb-promise-6.4.3.tgz#74516f4acf74957b54debd0fb2c0e5b5a68ca7b3"
   dependencies:
     lie "3.1.1"
 
+pouchdb-replication@^6.4.1:
+  version "6.4.3"
+  resolved "https://registry.yarnpkg.com/pouchdb-replication/-/pouchdb-replication-6.4.3.tgz#33718e2b100883707d56a9cc0ec7acba1a7355dd"
+  dependencies:
+    inherits "2.0.3"
+    pouchdb-checkpointer "6.4.3"
+    pouchdb-errors "6.4.3"
+    pouchdb-generate-replication-id "6.4.3"
+    pouchdb-promise "6.4.3"
+    pouchdb-utils "6.4.3"
+
+pouchdb-replicator@4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/pouchdb-replicator/-/pouchdb-replicator-4.1.0.tgz#4ef205d5ca0c28eb11aa84d85160a9437385ca61"
+  dependencies:
+    equals "^1.0.5"
+    extend "^3.0.0"
+    pouchdb-plugin-error "4.1.0"
+    pouchdb-promise "^6.4.1"
+    pouchdb-system-db "4.1.0"
+    pouchdb-validation "4.1.0"
+    promise-nodify "^1.0.2"
+    random-uuid-v4 "0.0.7"
+
+pouchdb-req-http-query@4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/pouchdb-req-http-query/-/pouchdb-req-http-query-4.1.0.tgz#0946bcb7b64b6ad2ff43cf37cbc9484430675467"
+  dependencies:
+    extend "^3.0.0"
+    header-case-normalizer "^1.0.3"
+    pouchdb-plugin-error "4.1.0"
+    pouchdb-promise "^6.4.1"
+    xmlhttprequest-cookie "^0.9.2"
+
+pouchdb-rewrite@4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/pouchdb-rewrite/-/pouchdb-rewrite-4.1.0.tgz#94eedc185de0972453f7002b0ecf5fb7216c5d4e"
+  dependencies:
+    couchdb-objects "4.1.0"
+    extend "^3.0.0"
+    pouchdb-plugin-error "4.1.0"
+    pouchdb-req-http-query "4.1.0"
+    pouchdb-route "4.1.0"
+    promise-nodify "^1.0.2"
+
+pouchdb-route@4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/pouchdb-route/-/pouchdb-route-4.1.0.tgz#2a30d6d87453b8dd7f6276dce6ff8032e650df90"
+  dependencies:
+    extend "^3.0.0"
+    pouchdb-plugin-error "4.1.0"
+
+pouchdb-security@4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/pouchdb-security/-/pouchdb-security-4.1.0.tgz#795d9b79998c04505279399ef0da87acd0393655"
+  dependencies:
+    extend "^3.0.0"
+    pouchdb-bulkdocs-wrapper "4.1.0"
+    pouchdb-changeslike-wrapper "4.1.0"
+    pouchdb-plugin-error "4.1.0"
+    pouchdb-promise "^6.4.1"
+    pouchdb-req-http-query "4.1.0"
+    pouchdb-wrappers "4.1.0"
+    promise-nodify "^1.0.2"
+
+pouchdb-selector-core@6.4.3:
+  version "6.4.3"
+  resolved "https://registry.yarnpkg.com/pouchdb-selector-core/-/pouchdb-selector-core-6.4.3.tgz#03a9cfd9284589baf836f3005ff15cf5e0eaf705"
+  dependencies:
+    pouchdb-collate "6.4.3"
+    pouchdb-utils "6.4.3"
+
 pouchdb-selector-core@7.0.0:
   version "7.0.0"
   resolved "https://registry.yarnpkg.com/pouchdb-selector-core/-/pouchdb-selector-core-7.0.0.tgz#824bd0980bd9778b3ddef869306a6cdb928df703"
@@ -4926,24 +6728,131 @@ pouchdb-selector-core@7.0.0:
     pouchdb-collate "7.0.0"
     pouchdb-utils "7.0.0"
 
+pouchdb-server@^4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/pouchdb-server/-/pouchdb-server-4.1.0.tgz#4514474658123383d710002f2016533d3be7af00"
+  dependencies:
+    "@gerhobbelt/nomnom" "^1.8.4-24"
+    colors "^1.0.3"
+    corser "~2.0.0"
+    couchdb-log-parse "^0.0.4"
+    express "^4.14.1"
+    express-pouchdb "4.1.0"
+    http-pouchdb "4.1.0"
+    killable "^1.0.0"
+    mkdirp "^0.5.0"
+    object-assign "^4.1.0"
+    pouchdb-adapter-http "^6.4.1"
+    pouchdb-adapter-leveldb-core "^6.4.1"
+    pouchdb-adapter-memory "^6.4.1"
+    pouchdb-core "^6.4.1"
+    pouchdb-mapreduce "^6.4.1"
+    pouchdb-promise "^6.4.1"
+    pouchdb-replication "^6.4.1"
+    serve-favicon "~2.5.0"
+    tail "^1.2.1"
+    wordwrap "1.0.0"
+  optionalDependencies:
+    pouchdb-adapter-leveldb "^6.4.1"
+    pouchdb-adapter-node-websql "^6.4.1"
+
+pouchdb-show@4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/pouchdb-show/-/pouchdb-show-4.1.0.tgz#e7235545e20d8e1591299812ad7019c06a3130e0"
+  dependencies:
+    couchdb-objects "4.1.0"
+    couchdb-render "4.1.0"
+    pouchdb-plugin-error "4.1.0"
+    pouchdb-promise "^6.4.1"
+    pouchdb-req-http-query "4.1.0"
+    promise-nodify "^1.0.2"
+
+pouchdb-size@4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/pouchdb-size/-/pouchdb-size-4.1.0.tgz#d72a277b25e1b466bd63045c45e317c39c653d9e"
+  dependencies:
+    bluebird "^3.4.7"
+    get-folder-size "^2.0.0"
+    pouchdb-wrappers "4.1.0"
+    promise-nodify "^1.0.2"
+
+pouchdb-system-db@4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/pouchdb-system-db/-/pouchdb-system-db-4.1.0.tgz#ad7a7d0076216b4da290b41615bbe79f5f477080"
+  dependencies:
+    pouchdb-changeslike-wrapper "4.1.0"
+    pouchdb-plugin-error "4.1.0"
+    pouchdb-security "4.1.0"
+    pouchdb-wrappers "4.1.0"
+
+pouchdb-update@4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/pouchdb-update/-/pouchdb-update-4.1.0.tgz#2374e412f64969ea745d9cb31d0faf82542638ef"
+  dependencies:
+    couchdb-eval "4.1.0"
+    couchdb-objects "4.1.0"
+    couchdb-resp-completer "4.1.0"
+    pouchdb-plugin-error "4.1.0"
+    pouchdb-promise "^6.4.1"
+    pouchdb-req-http-query "4.1.0"
+    promise-nodify "^1.0.2"
+
 pouchdb-upsert@^2.2.0:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/pouchdb-upsert/-/pouchdb-upsert-2.2.0.tgz#42b15e420848f3b294c35060589fdb51cf7f7f5f"
   dependencies:
     pouchdb-promise "^6.1.2"
 
+pouchdb-utils@6.4.3:
+  version "6.4.3"
+  resolved "https://registry.yarnpkg.com/pouchdb-utils/-/pouchdb-utils-6.4.3.tgz#aeb6bb8cbd8cf2d9f04e499bc3b70d1ce2a6c78a"
+  dependencies:
+    argsarray "0.0.1"
+    clone-buffer "1.0.0"
+    immediate "3.0.6"
+    inherits "2.0.3"
+    pouchdb-collections "6.4.3"
+    pouchdb-errors "6.4.3"
+    pouchdb-promise "6.4.3"
+    uuid "3.2.1"
+
 pouchdb-utils@7.0.0:
   version "7.0.0"
   resolved "https://registry.yarnpkg.com/pouchdb-utils/-/pouchdb-utils-7.0.0.tgz#48bfced6665b8f5a2b2d2317e2aa57635ed1e88e"
   dependencies:
-    argsarray "0.0.1"
-    clone-buffer "1.0.0"
-    immediate "3.0.6"
-    inherits "2.0.3"
-    pouchdb-collections "7.0.0"
-    pouchdb-errors "7.0.0"
-    pouchdb-md5 "7.0.0"
-    uuid "3.2.1"
+    argsarray "0.0.1"
+    clone-buffer "1.0.0"
+    immediate "3.0.6"
+    inherits "2.0.3"
+    pouchdb-collections "7.0.0"
+    pouchdb-errors "7.0.0"
+    pouchdb-md5 "7.0.0"
+    uuid "3.2.1"
+
+pouchdb-validation@4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/pouchdb-validation/-/pouchdb-validation-4.1.0.tgz#204a09cd714a733401d59e48d1caaec43195b3c7"
+  dependencies:
+    couchdb-eval "4.1.0"
+    couchdb-objects "4.1.0"
+    pouchdb-bulkdocs-wrapper "4.1.0"
+    pouchdb-plugin-error "4.1.0"
+    pouchdb-promise "^6.4.1"
+    pouchdb-wrappers "4.1.0"
+    random-uuid-v4 "0.0.7"
+
+pouchdb-vhost@4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/pouchdb-vhost/-/pouchdb-vhost-4.1.0.tgz#dec224d30a9ec3a17970c03780ff3a228c5e0dd8"
+  dependencies:
+    pouchdb-route "4.1.0"
+    promise-nodify "^1.0.2"
+
+pouchdb-wrappers@4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/pouchdb-wrappers/-/pouchdb-wrappers-4.1.0.tgz#4c37628e379cd6fcdeb11ee4afc33c995ab98a35"
+  dependencies:
+    promise-nodify "^1.0.2"
 
 pouchdb@^7.0.0:
   version "7.0.0"
@@ -5017,7 +6926,18 @@ prepend-http@^1.0.1:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/prepend-http/-/prepend-http-1.0.4.tgz#d4f4562b0ce3696e41ac52d0e002e57a635dc6dc"
 
-private@^0.1.6, private@~0.1.5:
+preserve@^0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/preserve/-/preserve-0.2.0.tgz#815ed1f6ebc65926f865b310c0713bcb3315ce4b"
+
+pretty-format@^23.5.0:
+  version "23.5.0"
+  resolved "https://registry.yarnpkg.com/pretty-format/-/pretty-format-23.5.0.tgz#0f9601ad9da70fe690a269cd3efca732c210687c"
+  dependencies:
+    ansi-regex "^3.0.0"
+    ansi-styles "^3.2.0"
+
+private@^0.1.6, private@^0.1.8, private@~0.1.5:
   version "0.1.8"
   resolved "https://registry.yarnpkg.com/private/-/private-0.1.8.tgz#2381edb3689f7a53d653190060fcf822d2f368ff"
 
@@ -5033,12 +6953,30 @@ progress@2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/progress/-/progress-2.0.0.tgz#8a1be366bf8fc23db2bd23f10c6fe920b4389d1f"
 
+promise-nodify@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/promise-nodify/-/promise-nodify-1.0.2.tgz#0d0fb143c33400b0061b47e581257557047d4c5a"
+
+prompts@^0.1.9:
+  version "0.1.14"
+  resolved "https://registry.yarnpkg.com/prompts/-/prompts-0.1.14.tgz#a8e15c612c5c9ec8f8111847df3337c9cbd443b2"
+  dependencies:
+    kleur "^2.0.1"
+    sisteransi "^0.1.1"
+
 promzard@^0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/promzard/-/promzard-0.3.0.tgz#26a5d6ee8c7dee4cb12208305acfb93ba382a9ee"
   dependencies:
     read "1"
 
+property-is-enumerable-x@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/property-is-enumerable-x/-/property-is-enumerable-x-1.1.0.tgz#7ca48917476cd0914b37809bfd05776a0d942f6f"
+  dependencies:
+    to-object-x "^1.4.1"
+    to-property-key-x "^2.0.1"
+
 proto-list@~1.2.1:
   version "1.2.4"
   resolved "https://registry.yarnpkg.com/proto-list/-/proto-list-1.2.4.tgz#212d5bfe1318306a420f6402b8e26ff39647a849"
@@ -5100,6 +7038,10 @@ punycode@^1.4.1:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/punycode/-/punycode-1.4.1.tgz#c0d5a63b2718800ad8e1eb0fa5269c84dd41845e"
 
+punycode@^2.1.0:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/punycode/-/punycode-2.1.1.tgz#b58b010ac40c22c5657616c8d2c2c02c7bf479ec"
+
 q@^1.1.2, q@^1.5.1:
   version "1.5.1"
   resolved "https://registry.yarnpkg.com/q/-/q-1.5.1.tgz#7e32f75b41381291d04611f1bf14109ac00651d7"
@@ -5108,14 +7050,14 @@ qs@6.5.1:
   version "6.5.1"
   resolved "https://registry.yarnpkg.com/qs/-/qs-6.5.1.tgz#349cdf6eef89ec45c12d7d5eb3fc0c870343a6d8"
 
+qs@6.5.2, qs@~6.5.1, qs@~6.5.2:
+  version "6.5.2"
+  resolved "https://registry.yarnpkg.com/qs/-/qs-6.5.2.tgz#cb3ae806e8740444584ef154ce8ee98d403f3e36"
+
 qs@~6.4.0:
   version "6.4.0"
   resolved "https://registry.yarnpkg.com/qs/-/qs-6.4.0.tgz#13e26d28ad6b0ffaa91312cd3bf708ed351e7233"
 
-qs@~6.5.1, qs@~6.5.2:
-  version "6.5.2"
-  resolved "https://registry.yarnpkg.com/qs/-/qs-6.5.2.tgz#cb3ae806e8740444584ef154ce8ee98d403f3e36"
-
 query-string@^5.0.1:
   version "5.1.1"
   resolved "https://registry.yarnpkg.com/query-string/-/query-string-5.1.1.tgz#a78c012b71c17e05f2e3fa2319dd330682efb3cb"
@@ -5128,6 +7070,24 @@ quick-lru@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/quick-lru/-/quick-lru-1.1.0.tgz#4360b17c61136ad38078397ff11416e186dcfbb8"
 
+random-bytes@~1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/random-bytes/-/random-bytes-1.0.0.tgz#4f68a1dc0ae58bd3fb95848c30324db75d64360b"
+
+random-uuid-v4@0.0.7:
+  version "0.0.7"
+  resolved "https://registry.yarnpkg.com/random-uuid-v4/-/random-uuid-v4-0.0.7.tgz#0f1b087ecbbfbc1c0147bc68e54ced4d43a16d46"
+  dependencies:
+    jest "^23.1.0"
+
+randomatic@^3.0.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/randomatic/-/randomatic-3.1.0.tgz#36f2ca708e9e567f5ed2ec01949026d50aa10116"
+  dependencies:
+    is-number "^4.0.0"
+    kind-of "^6.0.0"
+    math-random "^1.0.1"
+
 randomhex@0.1.5:
   version "0.1.5"
   resolved "https://registry.yarnpkg.com/randomhex/-/randomhex-0.1.5.tgz#baceef982329091400f2a2912c6cd02f1094f585"
@@ -5145,6 +7105,15 @@ raw-body@2.3.2:
     iconv-lite "0.4.19"
     unpipe "1.0.0"
 
+raw-body@2.3.3, raw-body@^2.2.0:
+  version "2.3.3"
+  resolved "https://registry.yarnpkg.com/raw-body/-/raw-body-2.3.3.tgz#1b324ece6b5706e153855bc1148c65bb7f6ea0c3"
+  dependencies:
+    bytes "3.0.0"
+    http-errors "1.6.3"
+    iconv-lite "0.4.23"
+    unpipe "1.0.0"
+
 rc@^1.0.1, rc@^1.1.6, rc@^1.1.7:
   version "1.2.7"
   resolved "https://registry.yarnpkg.com/rc/-/rc-1.2.7.tgz#8a10ca30d588d00464360372b890d06dacd02297"
@@ -5154,6 +7123,15 @@ rc@^1.0.1, rc@^1.1.6, rc@^1.1.7:
     minimist "^1.2.0"
     strip-json-comments "~2.0.1"
 
+rc@^1.2.7:
+  version "1.2.8"
+  resolved "https://registry.yarnpkg.com/rc/-/rc-1.2.8.tgz#cd924bf5200a075b83c188cd6b9e211b7fc0d3ed"
+  dependencies:
+    deep-extend "^0.6.0"
+    ini "~1.3.0"
+    minimist "^1.2.0"
+    strip-json-comments "~2.0.1"
+
 read-cmd-shim@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/read-cmd-shim/-/read-cmd-shim-1.0.1.tgz#2d5d157786a37c055d22077c32c53f8329e91c7b"
@@ -5269,6 +7247,12 @@ readdirp@^2.0.0:
     readable-stream "^2.0.2"
     set-immediate-shim "^1.0.1"
 
+realpath-native@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/realpath-native/-/realpath-native-1.0.1.tgz#07f40a0cce8f8261e2e8b7ebebf5c95965d7b633"
+  dependencies:
+    util.promisify "^1.0.0"
+
 recast@^0.10.1:
   version "0.10.43"
   resolved "https://registry.yarnpkg.com/recast/-/recast-0.10.43.tgz#b95d50f6d60761a5f6252e15d80678168491ce7f"
@@ -5305,6 +7289,16 @@ regenerator-runtime@^0.10.0:
   version "0.10.5"
   resolved "https://registry.yarnpkg.com/regenerator-runtime/-/regenerator-runtime-0.10.5.tgz#336c3efc1220adcedda2c9fab67b5a7955a33658"
 
+regenerator-runtime@^0.11.0:
+  version "0.11.1"
+  resolved "https://registry.yarnpkg.com/regenerator-runtime/-/regenerator-runtime-0.11.1.tgz#be05ad7f9bf7d22e056f9726cee5017fbf19e2e9"
+
+regex-cache@^0.4.2:
+  version "0.4.4"
+  resolved "https://registry.yarnpkg.com/regex-cache/-/regex-cache-0.4.4.tgz#75bdc58a2a1496cec48a12835bc54c8d562336dd"
+  dependencies:
+    is-equal-shallow "^0.1.3"
+
 regex-not@^1.0.0, regex-not@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/regex-not/-/regex-not-1.0.2.tgz#1f4ece27e00b0b65e0247a6810e6a85d83a5752c"
@@ -5358,6 +7352,13 @@ repeating@^2.0.0:
   dependencies:
     is-finite "^1.0.0"
 
+replace-comments-x@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/replace-comments-x/-/replace-comments-x-2.0.0.tgz#a5cec18efd912aad78a7c3c4b69d01768556d140"
+  dependencies:
+    require-coercible-to-string-x "^1.0.0"
+    to-string-x "^1.4.2"
+
 replace-ext@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/replace-ext/-/replace-ext-1.0.0.tgz#de63128373fcbf7c3ccfa4de5a480c45a67958eb"
@@ -5368,6 +7369,20 @@ request-progress@3.0.0:
   dependencies:
     throttleit "^1.0.0"
 
+request-promise-core@1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/request-promise-core/-/request-promise-core-1.1.1.tgz#3eee00b2c5aa83239cfb04c5700da36f81cd08b6"
+  dependencies:
+    lodash "^4.13.1"
+
+request-promise-native@^1.0.5:
+  version "1.0.5"
+  resolved "https://registry.yarnpkg.com/request-promise-native/-/request-promise-native-1.0.5.tgz#5281770f68e0c9719e5163fd3fab482215f4fda5"
+  dependencies:
+    request-promise-core "1.1.1"
+    stealthy-require "^1.1.0"
+    tough-cookie ">=2.3.3"
+
 request@2.81.0:
   version "2.81.0"
   resolved "https://registry.yarnpkg.com/request/-/request-2.81.0.tgz#c6928946a0e06c5f8d6f8a9333469ffda46298a0"
@@ -5395,6 +7410,33 @@ request@2.81.0:
     tunnel-agent "^0.6.0"
     uuid "^3.0.0"
 
+request@2.83.0:
+  version "2.83.0"
+  resolved "https://registry.yarnpkg.com/request/-/request-2.83.0.tgz#ca0b65da02ed62935887808e6f510381034e3356"
+  dependencies:
+    aws-sign2 "~0.7.0"
+    aws4 "^1.6.0"
+    caseless "~0.12.0"
+    combined-stream "~1.0.5"
+    extend "~3.0.1"
+    forever-agent "~0.6.1"
+    form-data "~2.3.1"
+    har-validator "~5.0.3"
+    hawk "~6.0.2"
+    http-signature "~1.2.0"
+    is-typedarray "~1.0.0"
+    isstream "~0.1.2"
+    json-stringify-safe "~5.0.1"
+    mime-types "~2.1.17"
+    oauth-sign "~0.8.2"
+    performance-now "^2.1.0"
+    qs "~6.5.1"
+    safe-buffer "^5.1.1"
+    stringstream "~0.0.5"
+    tough-cookie "~2.3.3"
+    tunnel-agent "^0.6.0"
+    uuid "^3.1.0"
+
 request@^2.79.0:
   version "2.85.0"
   resolved "https://registry.yarnpkg.com/request/-/request-2.85.0.tgz#5a03615a47c61420b3eb99b7dba204f83603e1fa"
@@ -5472,6 +7514,13 @@ request@^2.87.0:
     tunnel-agent "^0.6.0"
     uuid "^3.3.2"
 
+require-coercible-to-string-x@^1.0.0:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/require-coercible-to-string-x/-/require-coercible-to-string-x-1.0.2.tgz#b8c96ab42962ab7b28f3311fc6b198124c56f9f6"
+  dependencies:
+    require-object-coercible-x "^1.4.3"
+    to-string-x "^1.4.5"
+
 require-directory@^2.1.1:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/require-directory/-/require-directory-2.1.1.tgz#8c64ad5fd30dab1c976e2344ffe7f792a6a6df42"
@@ -5480,6 +7529,12 @@ require-main-filename@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/require-main-filename/-/require-main-filename-1.0.1.tgz#97f717b69d48784f5f526a6c5aa8ffdda055a4d1"
 
+require-object-coercible-x@^1.4.1, require-object-coercible-x@^1.4.3:
+  version "1.4.3"
+  resolved "https://registry.yarnpkg.com/require-object-coercible-x/-/require-object-coercible-x-1.4.3.tgz#783719a23a5c0ce24e845fcc50cd55b6421ea4bb"
+  dependencies:
+    is-nil-x "^1.4.2"
+
 resolve-cwd@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/resolve-cwd/-/resolve-cwd-2.0.0.tgz#00a9f7387556e27038eae232caa372a6a59b665a"
@@ -5508,6 +7563,10 @@ resolve-url@^0.2.1:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/resolve-url/-/resolve-url-0.2.1.tgz#2c637fe77c893afd2a663fe21aa9080068e2052a"
 
+resolve@1.1.7:
+  version "1.1.7"
+  resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.1.7.tgz#203114d82ad2c5ed9e8e0411b3932875e889e97b"
+
 resolve@1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.4.0.tgz#a75be01c53da25d934a98ebd0e4c4a7312f92a86"
@@ -5548,7 +7607,7 @@ right-align@^0.1.1:
   dependencies:
     align-text "^0.1.1"
 
-rimraf@2, rimraf@^2.6.1, rimraf@^2.6.2:
+rimraf@2, rimraf@^2.5.1, rimraf@^2.5.4, rimraf@^2.6.1, rimraf@^2.6.2:
   version "2.6.2"
   resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-2.6.2.tgz#2ed8150d24a16ea8651e6d6ef0f47c4158ce7a36"
   dependencies:
@@ -5558,6 +7617,10 @@ rosie@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/rosie/-/rosie-2.0.1.tgz#c250c4787ce450b72aa9eff26509f68589814fa2"
 
+rsvp@^3.3.3:
+  version "3.6.2"
+  resolved "https://registry.yarnpkg.com/rsvp/-/rsvp-3.6.2.tgz#2e96491599a96cde1b515d5674a8f7a91452926a"
+
 run-async@^2.2.0:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/run-async/-/run-async-2.3.0.tgz#0371ab4ae0bdd720d4166d7dfda64ff7a445a6c0"
@@ -5578,7 +7641,7 @@ safe-buffer@5.1.1:
   version "5.1.1"
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.1.tgz#893312af69b2123def71f57889001671eeb2c853"
 
-safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.1, safe-buffer@^5.1.2, safe-buffer@~5.1.0, safe-buffer@~5.1.1:
+safe-buffer@5.1.2, safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.1, safe-buffer@^5.1.2, safe-buffer@~5.1.0, safe-buffer@~5.1.1:
   version "5.1.2"
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.2.tgz#991ec69d296e0313747d59bdfd2b745c35f8828d"
 
@@ -5592,10 +7655,35 @@ safe-regex@^1.1.0:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/safer-buffer/-/safer-buffer-2.1.2.tgz#44fa161b0187b9549dd84bb91802f9bd8385cd6a"
 
+sane@^2.0.0:
+  version "2.5.2"
+  resolved "https://registry.yarnpkg.com/sane/-/sane-2.5.2.tgz#b4dc1861c21b427e929507a3e751e2a2cb8ab3fa"
+  dependencies:
+    anymatch "^2.0.0"
+    capture-exit "^1.2.0"
+    exec-sh "^0.2.0"
+    fb-watchman "^2.0.0"
+    micromatch "^3.1.4"
+    minimist "^1.1.1"
+    walker "~1.0.5"
+    watch "~0.18.0"
+  optionalDependencies:
+    fsevents "^1.2.3"
+
+sanitize-filename@^1.6.1:
+  version "1.6.1"
+  resolved "https://registry.yarnpkg.com/sanitize-filename/-/sanitize-filename-1.6.1.tgz#612da1c96473fa02dccda92dcd5b4ab164a6772a"
+  dependencies:
+    truncate-utf8-bytes "^1.0.0"
+
 sax@^1.2.4:
   version "1.2.4"
   resolved "https://registry.yarnpkg.com/sax/-/sax-1.2.4.tgz#2816234e2378bddc4e5354fab5caa895df7100d9"
 
+secure-random@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/secure-random/-/secure-random-1.1.1.tgz#0880f2d8c5185f4bcb4684058c836b4ddb07145a"
+
 semver-diff@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/semver-diff/-/semver-diff-2.1.0.tgz#4bbb8437c8d37e4b0cf1a68fd726ec6d645d6d36"
@@ -5658,6 +7746,16 @@ sequelize@^4.35.2, sequelize@^4.37.7:
     validator "^9.4.1"
     wkx "^0.4.1"
 
+serve-favicon@~2.5.0:
+  version "2.5.0"
+  resolved "https://registry.yarnpkg.com/serve-favicon/-/serve-favicon-2.5.0.tgz#935d240cdfe0f5805307fdfe967d88942a2cbcf0"
+  dependencies:
+    etag "~1.8.1"
+    fresh "0.5.2"
+    ms "2.1.1"
+    parseurl "~1.3.2"
+    safe-buffer "5.1.1"
+
 serve-static@1.13.2:
   version "1.13.2"
   resolved "https://registry.yarnpkg.com/serve-static/-/serve-static-1.13.2.tgz#095e8472fd5b46237db50ce486a43f4b86c6cec1"
@@ -5727,6 +7825,10 @@ shebang-regex@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/shebang-regex/-/shebang-regex-1.0.0.tgz#da42f49740c0b42db2ca9728571cb190c98efea3"
 
+shellwords@^0.1.1:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/shellwords/-/shellwords-0.1.1.tgz#d6b9181c1a48d397324c84871efbcfc73fc0654b"
+
 shimmer@^1.1.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/shimmer/-/shimmer-1.2.0.tgz#f966f7555789763e74d8841193685a5e78736665"
@@ -5751,6 +7853,10 @@ simple-get@^2.7.0:
     once "^1.3.1"
     simple-concat "^1.0.0"
 
+sisteransi@^0.1.1:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/sisteransi/-/sisteransi-0.1.1.tgz#5431447d5f7d1675aac667ccd0b865a4994cb3ce"
+
 slash@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/slash/-/slash-1.0.0.tgz#c41f2f6c39fc16d1cd17ad4b5d896114ae470d55"
@@ -5820,6 +7926,12 @@ source-map-support@0.4.14:
   dependencies:
     source-map "^0.5.6"
 
+source-map-support@^0.4.15:
+  version "0.4.18"
+  resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.4.18.tgz#0286a6de8be42641338594e97ccea75f0a2c585f"
+  dependencies:
+    source-map "^0.5.6"
+
 source-map-support@^0.5.6:
   version "0.5.6"
   resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.5.6.tgz#4435cee46b1aab62b8e8610ce60f788091c51c13"
@@ -5843,11 +7955,11 @@ source-map@^0.4.2, source-map@^0.4.4:
   dependencies:
     amdefine ">=0.0.4"
 
-source-map@^0.5.0, source-map@^0.5.3, source-map@^0.5.6, source-map@~0.5.0, source-map@~0.5.1:
+source-map@^0.5.0, source-map@^0.5.3, source-map@^0.5.6, source-map@^0.5.7, source-map@~0.5.0, source-map@~0.5.1:
   version "0.5.7"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.5.7.tgz#8a039d2d1021d22d1ea14c80d8ea468ba2ef3fcc"
 
-source-map@^0.6.0, source-map@^0.6.1:
+source-map@^0.6.0, source-map@^0.6.1, source-map@~0.6.1:
   version "0.6.1"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.6.1.tgz#74722af32e9614e9c287a8d0bbde48b5e2f1a263"
 
@@ -5926,6 +8038,13 @@ sprintf-js@~1.0.2:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/sprintf-js/-/sprintf-js-1.0.3.tgz#04e6926f662895354f3dd015203633b857297e2c"
 
+sqlite3@^3.1.1:
+  version "3.1.13"
+  resolved "https://registry.yarnpkg.com/sqlite3/-/sqlite3-3.1.13.tgz#d990a05627392768de6278bafd1a31fdfe907dd9"
+  dependencies:
+    nan "~2.7.0"
+    node-pre-gyp "~0.6.38"
+
 sshpk@^1.7.0:
   version "1.14.1"
   resolved "https://registry.yarnpkg.com/sshpk/-/sshpk-1.14.1.tgz#130f5975eddad963f1d56f92b9ac6c51fa9f83eb"
@@ -5940,6 +8059,10 @@ sshpk@^1.7.0:
     jsbn "~0.1.0"
     tweetnacl "~0.14.0"
 
+stack-utils@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/stack-utils/-/stack-utils-1.0.1.tgz#d4f33ab54e8e38778b0ca5cfd3b3afb12db68620"
+
 static-extend@^0.1.1:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/static-extend/-/static-extend-0.1.2.tgz#60809c39cbff55337226fd5e0b520f341f1fb5c6"
@@ -5947,7 +8070,7 @@ static-extend@^0.1.1:
     define-property "^0.2.5"
     object-copy "^0.1.0"
 
-"statuses@>= 1.3.1 < 2", "statuses@>= 1.4.0 < 2":
+"statuses@>= 1.3.1 < 2", "statuses@>= 1.4.0 < 2", "statuses@>= 1.5.0 < 2":
   version "1.5.0"
   resolved "https://registry.yarnpkg.com/statuses/-/statuses-1.5.0.tgz#161c7dac177659fd9811f43771fa99381478628c"
 
@@ -5955,6 +8078,10 @@ statuses@~1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/statuses/-/statuses-1.4.0.tgz#bb73d446da2796106efcc1b601a253d6c46bd087"
 
+stealthy-require@^1.1.0:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/stealthy-require/-/stealthy-require-1.1.1.tgz#35b09875b4ff49f26a777e509b3090a3226bf24b"
+
 stream-combiner@~0.0.4:
   version "0.0.4"
   resolved "https://registry.yarnpkg.com/stream-combiner/-/stream-combiner-0.0.4.tgz#4d5e433c185261dde623ca3f44c586bcf5c4ad14"
@@ -5975,6 +8102,13 @@ strict-uri-encode@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/strict-uri-encode/-/strict-uri-encode-1.1.0.tgz#279b225df1d582b1f54e65addd4352e18faa0713"
 
+string-length@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/string-length/-/string-length-2.0.0.tgz#d40dbb686a3ace960c1cffca562bf2c45f8363ed"
+  dependencies:
+    astral-regex "^1.0.0"
+    strip-ansi "^4.0.0"
+
 string-width@^1.0.1, string-width@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/string-width/-/string-width-1.0.2.tgz#118bdf5b8cdc51a2a7e70d211e07e2b0b9b107d3"
@@ -6030,16 +8164,16 @@ strip-ansi@^4.0.0:
   dependencies:
     ansi-regex "^3.0.0"
 
+strip-bom@3.0.0, strip-bom@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/strip-bom/-/strip-bom-3.0.0.tgz#2334c18e9c759f7bdd56fdef7e9ae3d588e68ed3"
+
 strip-bom@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/strip-bom/-/strip-bom-2.0.0.tgz#6219a85616520491f35788bdbf1447a99c7e6b0e"
   dependencies:
     is-utf8 "^0.2.0"
 
-strip-bom@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/strip-bom/-/strip-bom-3.0.0.tgz#2334c18e9c759f7bdd56fdef7e9ae3d588e68ed3"
-
 strip-eof@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/strip-eof/-/strip-eof-1.0.0.tgz#bb43ff5598a6eb05d89b59fcd129c983313606bf"
@@ -6074,6 +8208,15 @@ strong-log-transformer@^1.0.6:
     moment "^2.6.0"
     through "^2.3.4"
 
+sublevel-pouchdb@6.4.3:
+  version "6.4.3"
+  resolved "https://registry.yarnpkg.com/sublevel-pouchdb/-/sublevel-pouchdb-6.4.3.tgz#e4eca52d8ac7ba17ff6c18fcdc51f5ecbbb15597"
+  dependencies:
+    inherits "2.0.3"
+    level-codec "7.0.1"
+    ltgt "2.2.0"
+    readable-stream "1.0.33"
+
 supports-color@4.4.0:
   version "4.4.0"
   resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-4.4.0.tgz#883f7ddabc165142b2a61427f3352ded195d1a3e"
@@ -6110,6 +8253,14 @@ symbol-observable@1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/symbol-observable/-/symbol-observable-1.0.1.tgz#8340fc4702c3122df5d22288f88283f513d3fdd4"
 
+symbol-tree@^3.2.2:
+  version "3.2.2"
+  resolved "https://registry.yarnpkg.com/symbol-tree/-/symbol-tree-3.2.2.tgz#ae27db38f660a7ae2e1c3b7d1bc290819b8519e6"
+
+tail@^1.2.1:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/tail/-/tail-1.3.0.tgz#0bcb25f6e5a70d3c9e76693aa8a1721b22fb1d2e"
+
 tar-fs@^1.13.0:
   version "1.16.3"
   resolved "https://registry.yarnpkg.com/tar-fs/-/tar-fs-1.16.3.tgz#966a628841da2c4010406a82167cbd5e0c72d509"
@@ -6119,6 +8270,19 @@ tar-fs@^1.13.0:
     pump "^1.0.0"
     tar-stream "^1.1.2"
 
+tar-pack@^3.4.0:
+  version "3.4.1"
+  resolved "https://registry.yarnpkg.com/tar-pack/-/tar-pack-3.4.1.tgz#e1dbc03a9b9d3ba07e896ad027317eb679a10a1f"
+  dependencies:
+    debug "^2.2.0"
+    fstream "^1.0.10"
+    fstream-ignore "^1.0.5"
+    once "^1.3.3"
+    readable-stream "^2.1.4"
+    rimraf "^2.5.1"
+    tar "^2.2.1"
+    uid-number "^0.0.6"
+
 tar-stream@^1.1.2:
   version "1.6.1"
   resolved "https://registry.yarnpkg.com/tar-stream/-/tar-stream-1.6.1.tgz#f84ef1696269d6223ca48f6e1eeede3f7e81f395"
@@ -6131,7 +8295,7 @@ tar-stream@^1.1.2:
     to-buffer "^1.1.0"
     xtend "^4.0.0"
 
-tar@^2.0.0:
+tar@^2.0.0, tar@^2.2.1:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/tar/-/tar-2.2.1.tgz#8e4d2a256c0e2185c6b18ad694aec968b83cb1d1"
   dependencies:
@@ -6184,7 +8348,7 @@ terraformer@~1.0.5:
   dependencies:
     "@types/geojson" "^1.0.0"
 
-test-exclude@^4.2.0:
+test-exclude@^4.2.0, test-exclude@^4.2.1:
   version "4.2.1"
   resolved "https://registry.yarnpkg.com/test-exclude/-/test-exclude-4.2.1.tgz#dfa222f03480bca69207ca728b37d74b45f724fa"
   dependencies:
@@ -6198,6 +8362,10 @@ text-extensions@^1.0.0:
   version "1.7.0"
   resolved "https://registry.yarnpkg.com/text-extensions/-/text-extensions-1.7.0.tgz#faaaba2625ed746d568a23e4d0aacd9bf08a8b39"
 
+throat@^4.0.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/throat/-/throat-4.1.0.tgz#89037cbc92c56ab18926e6ba4cbb200e15672a6a"
+
 throttleit@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/throttleit/-/throttleit-1.0.0.tgz#9e785836daf46743145a5984b6268d828528ac6c"
@@ -6231,7 +8399,11 @@ timed-out@^4.0.0, timed-out@^4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/timed-out/-/timed-out-4.0.1.tgz#f32eacac5a175bea25d7fab565ab3ed8741ef56f"
 
-tiny-queue@^0.2.0:
+tiny-each-async@2.0.3:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/tiny-each-async/-/tiny-each-async-2.0.3.tgz#8ebbbfd6d6295f1370003fbb37162afe5a0a51d1"
+
+tiny-queue@^0.2.0, tiny-queue@^0.2.1:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/tiny-queue/-/tiny-queue-0.2.1.tgz#25a67f2c6e253b2ca941977b5ef7442ef97a6046"
 
@@ -6241,6 +8413,10 @@ tmp@^0.0.33:
   dependencies:
     os-tmpdir "~1.0.2"
 
+tmpl@1.0.x:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/tmpl/-/tmpl-1.0.4.tgz#23640dd7b42d00433911140820e5cf440e521dd1"
+
 to-absolute-glob@^2.0.0:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/to-absolute-glob/-/to-absolute-glob-2.0.2.tgz#1865f43d9e74b0822db9f145b78cff7d0f7c849b"
@@ -6248,20 +8424,75 @@ to-absolute-glob@^2.0.0:
     is-absolute "^1.0.0"
     is-negated-glob "^1.0.0"
 
+to-boolean-x@^1.0.1, to-boolean-x@^1.0.2:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/to-boolean-x/-/to-boolean-x-1.0.3.tgz#cbe15e38a85d09553f29869a9b3e3b54ceef5af0"
+
 to-buffer@^1.1.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/to-buffer/-/to-buffer-1.1.1.tgz#493bd48f62d7c43fcded313a03dcadb2e1213a80"
 
+to-fast-properties@^1.0.3:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/to-fast-properties/-/to-fast-properties-1.0.3.tgz#b83571fa4d8c25b82e231b06e3a3055de4ca1a47"
+
 to-fast-properties@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/to-fast-properties/-/to-fast-properties-2.0.0.tgz#dc5e698cbd079265bc73e0377681a4e4e83f616e"
 
+to-integer-x@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/to-integer-x/-/to-integer-x-3.0.0.tgz#9f3b80e668c7f0ae45e6926b40d95f52c1addc74"
+  dependencies:
+    is-finite-x "^3.0.2"
+    is-nan-x "^1.0.1"
+    math-sign-x "^3.0.0"
+    to-number-x "^2.0.0"
+
+to-number-x@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/to-number-x/-/to-number-x-2.0.0.tgz#c9099d7ded8fd327132a2987df2dcc8baf36df4d"
+  dependencies:
+    cached-constructors-x "^1.0.0"
+    nan-x "^1.0.0"
+    parse-int-x "^2.0.0"
+    to-primitive-x "^1.1.0"
+    trim-x "^3.0.0"
+
 to-object-path@^0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/to-object-path/-/to-object-path-0.3.0.tgz#297588b7b0e7e0ac08e04e672f85c1f4999e17af"
   dependencies:
     kind-of "^3.0.2"
 
+to-object-x@^1.4.1, to-object-x@^1.5.0:
+  version "1.5.0"
+  resolved "https://registry.yarnpkg.com/to-object-x/-/to-object-x-1.5.0.tgz#bd69dd4e104d77acc0cc0d84f5ac48f630aebe3c"
+  dependencies:
+    cached-constructors-x "^1.0.0"
+    require-object-coercible-x "^1.4.1"
+
+to-primitive-x@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/to-primitive-x/-/to-primitive-x-1.1.0.tgz#41ce2c13e3e246e0e5d0a8829a0567c6015833f8"
+  dependencies:
+    has-symbol-support-x "^1.4.1"
+    is-date-object "^1.0.1"
+    is-function-x "^3.2.0"
+    is-nil-x "^1.4.1"
+    is-primitive "^2.0.0"
+    is-symbol "^1.0.1"
+    require-object-coercible-x "^1.4.1"
+    validate.io-undefined "^1.0.3"
+
+to-property-key-x@^2.0.1, to-property-key-x@^2.0.2:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/to-property-key-x/-/to-property-key-x-2.0.2.tgz#b19aa8e22faa0ff7d1c102cfbc657af73413cfa1"
+  dependencies:
+    has-symbol-support-x "^1.4.1"
+    to-primitive-x "^1.1.0"
+    to-string-x "^1.4.2"
+
 to-regex-range@^2.1.0:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/to-regex-range/-/to-regex-range-2.1.1.tgz#7c80c17b9dfebe599e27367e0d4dd5590141db38"
@@ -6278,12 +8509,38 @@ to-regex@^3.0.1, to-regex@^3.0.2:
     regex-not "^1.0.2"
     safe-regex "^1.1.0"
 
+to-string-symbols-supported-x@^1.0.0:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/to-string-symbols-supported-x/-/to-string-symbols-supported-x-1.0.2.tgz#73f5e17963520b2b365559f05e3864addaab7f1e"
+  dependencies:
+    cached-constructors-x "^1.0.2"
+    has-symbol-support-x "^1.4.2"
+    is-symbol "^1.0.1"
+
+to-string-tag-x@^1.4.1, to-string-tag-x@^1.4.2:
+  version "1.4.3"
+  resolved "https://registry.yarnpkg.com/to-string-tag-x/-/to-string-tag-x-1.4.3.tgz#3aed2edec9343be3c76e338161f85d6864c692b1"
+  dependencies:
+    lodash.isnull "^3.0.0"
+    validate.io-undefined "^1.0.3"
+
+to-string-x@^1.4.2, to-string-x@^1.4.5:
+  version "1.4.5"
+  resolved "https://registry.yarnpkg.com/to-string-x/-/to-string-x-1.4.5.tgz#b86dad14df68ca4df52ca4cb011a25e0bf5d9ca1"
+  dependencies:
+    cached-constructors-x "^1.0.0"
+    is-symbol "^1.0.1"
+
 to-through@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/to-through/-/to-through-2.0.0.tgz#fc92adaba072647bc0b67d6b03664aa195093af6"
   dependencies:
     through2 "^2.0.3"
 
+toidentifier@1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/toidentifier/-/toidentifier-1.0.0.tgz#7e1be3470f1e77948bc43d94a3c8f4d7752ba553"
+
 toposort-class@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/toposort-class/-/toposort-class-1.0.1.tgz#7ffd1f78c8be28c3ba45cd4e1a3f5ee193bd9988"
@@ -6294,7 +8551,7 @@ touch@^3.1.0:
   dependencies:
     nopt "~1.0.10"
 
-tough-cookie@^2.3.1, tough-cookie@~2.4.3:
+tough-cookie@>=2.3.3, tough-cookie@^2.3.1, tough-cookie@^2.3.4, tough-cookie@~2.4.3:
   version "2.4.3"
   resolved "https://registry.yarnpkg.com/tough-cookie/-/tough-cookie-2.4.3.tgz#53f36da3f47783b0925afa06ff9f3b165280f781"
   dependencies:
@@ -6307,10 +8564,24 @@ tough-cookie@~2.3.0, tough-cookie@~2.3.3:
   dependencies:
     punycode "^1.4.1"
 
+tr46@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/tr46/-/tr46-1.0.1.tgz#a8b13fd6bfd2489519674ccde55ba3693b706d09"
+  dependencies:
+    punycode "^2.1.0"
+
 tree-kill@^1.1.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/tree-kill/-/tree-kill-1.2.0.tgz#5846786237b4239014f05db156b643212d4c6f36"
 
+trim-left-x@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/trim-left-x/-/trim-left-x-3.0.0.tgz#356cf055896726b9754425e841398842e90b4cdf"
+  dependencies:
+    cached-constructors-x "^1.0.0"
+    require-coercible-to-string-x "^1.0.0"
+    white-space-x "^3.0.0"
+
 trim-newlines@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/trim-newlines/-/trim-newlines-1.0.0.tgz#5887966bb582a4503a41eb524f7d35011815a613"
@@ -6323,14 +8594,35 @@ trim-off-newlines@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/trim-off-newlines/-/trim-off-newlines-1.0.1.tgz#9f9ba9d9efa8764c387698bcbfeb2c848f11adb3"
 
+trim-right-x@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/trim-right-x/-/trim-right-x-3.0.0.tgz#28c4cd37d5981f50ace9b52e3ce9106f4d2d22c0"
+  dependencies:
+    cached-constructors-x "^1.0.0"
+    require-coercible-to-string-x "^1.0.0"
+    white-space-x "^3.0.0"
+
 trim-right@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/trim-right/-/trim-right-1.0.1.tgz#cb2e1203067e0c8de1f614094b9fe45704ea6003"
 
+trim-x@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/trim-x/-/trim-x-3.0.0.tgz#24efdcd027b748bbfc246a0139ad1749befef024"
+  dependencies:
+    trim-left-x "^3.0.0"
+    trim-right-x "^3.0.0"
+
 trim@0.0.1:
   version "0.0.1"
   resolved "https://registry.yarnpkg.com/trim/-/trim-0.0.1.tgz#5858547f6b290757ee95cccc666fb50084c460dd"
 
+truncate-utf8-bytes@^1.0.0:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/truncate-utf8-bytes/-/truncate-utf8-bytes-1.0.2.tgz#405923909592d56f78a5818434b0b78489ca5f2b"
+  dependencies:
+    utf8-byte-length "^1.0.1"
+
 ts-node@^7.0.1:
   version "7.0.1"
   resolved "https://registry.yarnpkg.com/ts-node/-/ts-node-7.0.1.tgz#9562dc2d1e6d248d24bc55f773e3f614337d9baf"
@@ -6419,10 +8711,16 @@ uglify-to-browserify@~1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/uglify-to-browserify/-/uglify-to-browserify-1.0.2.tgz#6e0924d6bda6b5afe349e39a6d632850a0f882b7"
 
-uid-number@0.0.6:
+uid-number@0.0.6, uid-number@^0.0.6:
   version "0.0.6"
   resolved "https://registry.yarnpkg.com/uid-number/-/uid-number-0.0.6.tgz#0ea10e8035e8eb5b8e4449f06da1c730663baa81"
 
+uid-safe@2.1.5:
+  version "2.1.5"
+  resolved "https://registry.yarnpkg.com/uid-safe/-/uid-safe-2.1.5.tgz#2b3d5c7240e8fc2e58f8aa269e5ee49c0857bd3a"
+  dependencies:
+    random-bytes "~1.0.0"
+
 uid2@0.0.3:
   version "0.0.3"
   resolved "https://registry.yarnpkg.com/uid2/-/uid2-0.0.3.tgz#483126e11774df2f71b8b639dcd799c376162b82"
@@ -6545,6 +8843,10 @@ use@^3.1.0:
   dependencies:
     kind-of "^6.0.2"
 
+utf8-byte-length@^1.0.1:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/utf8-byte-length/-/utf8-byte-length-1.0.4.tgz#f45f150c4c66eee968186505ab93fcbb8ad6bf61"
+
 utf8@2.1.1:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/utf8/-/utf8-2.1.1.tgz#2e01db02f7d8d0944f77104f1609eb0c304cf768"
@@ -6553,6 +8855,13 @@ util-deprecate@~1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/util-deprecate/-/util-deprecate-1.0.2.tgz#450d4dc9fa70de732762fbd2d4a28981419a0ccf"
 
+util.promisify@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/util.promisify/-/util.promisify-1.0.0.tgz#440f7165a459c9a16dc145eb8e72f35687097030"
+  dependencies:
+    define-properties "^1.1.2"
+    object.getownpropertydescriptors "^2.0.3"
+
 utils-merge@1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/utils-merge/-/utils-merge-1.0.1.tgz#9f95710f50a267947b2ccc124741c1028427e713"
@@ -6589,6 +8898,10 @@ validate-npm-package-name@^3.0.0:
   dependencies:
     builtins "^1.0.3"
 
+validate.io-undefined@^1.0.3:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/validate.io-undefined/-/validate.io-undefined-1.0.3.tgz#7e27fcbb315b841e78243431897671929e20b7f4"
+
 validator@^9.4.1:
   version "9.4.1"
   resolved "https://registry.yarnpkg.com/validator/-/validator-9.4.1.tgz#abf466d398b561cd243050112c6ff1de6cc12663"
@@ -6658,6 +8971,25 @@ vuvuzela@1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/vuvuzela/-/vuvuzela-1.0.3.tgz#3be145e58271c73ca55279dd851f12a682114b0b"
 
+w3c-hr-time@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/w3c-hr-time/-/w3c-hr-time-1.0.1.tgz#82ac2bff63d950ea9e3189a58a65625fedf19045"
+  dependencies:
+    browser-process-hrtime "^0.1.2"
+
+walker@~1.0.5:
+  version "1.0.7"
+  resolved "https://registry.yarnpkg.com/walker/-/walker-1.0.7.tgz#2f7f9b8fd10d677262b18a884e28d19618e028fb"
+  dependencies:
+    makeerror "1.0.x"
+
+watch@~0.18.0:
+  version "0.18.0"
+  resolved "https://registry.yarnpkg.com/watch/-/watch-0.18.0.tgz#28095476c6df7c90c963138990c0a5423eb4b986"
+  dependencies:
+    exec-sh "^0.2.0"
+    minimist "^1.2.0"
+
 wcwidth@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/wcwidth/-/wcwidth-1.0.1.tgz#f0b0dcf915bc5ff1528afadb2c0e17b532da2fe8"
@@ -6700,10 +9032,51 @@ web3-utils@1.0.0-beta.34, web3-utils@^1.0.0-beta.34:
     underscore "1.8.3"
     utf8 "2.1.1"
 
+webidl-conversions@^4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/webidl-conversions/-/webidl-conversions-4.0.2.tgz#a855980b1f0b6b359ba1d5d9fb39ae941faa63ad"
+
+websql@0.4.4:
+  version "0.4.4"
+  resolved "https://registry.yarnpkg.com/websql/-/websql-0.4.4.tgz#1463177f203cff0f3ac4d8294c8e1261c0c8ec01"
+  dependencies:
+    argsarray "0.0.1"
+    immediate "^3.2.2"
+    noop-fn "^1.0.0"
+    pouchdb-collections "^1.0.1"
+    sqlite3 "^3.1.1"
+    tiny-queue "^0.2.1"
+
+whatwg-encoding@^1.0.1, whatwg-encoding@^1.0.3:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/whatwg-encoding/-/whatwg-encoding-1.0.4.tgz#63fb016b7435b795d9025632c086a5209dbd2621"
+  dependencies:
+    iconv-lite "0.4.23"
+
 whatwg-fetch@>=0.10.0:
   version "2.0.4"
   resolved "https://registry.yarnpkg.com/whatwg-fetch/-/whatwg-fetch-2.0.4.tgz#dde6a5df315f9d39991aa17621853d720b85566f"
 
+whatwg-mimetype@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/whatwg-mimetype/-/whatwg-mimetype-2.1.0.tgz#f0f21d76cbba72362eb609dbed2a30cd17fcc7d4"
+
+whatwg-url@^6.4.1:
+  version "6.5.0"
+  resolved "https://registry.yarnpkg.com/whatwg-url/-/whatwg-url-6.5.0.tgz#f2df02bff176fd65070df74ad5ccbb5a199965a8"
+  dependencies:
+    lodash.sortby "^4.7.0"
+    tr46 "^1.0.1"
+    webidl-conversions "^4.0.2"
+
+whatwg-url@^7.0.0:
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/whatwg-url/-/whatwg-url-7.0.0.tgz#fde926fa54a599f3adf82dff25a9f7be02dc6edd"
+  dependencies:
+    lodash.sortby "^4.7.0"
+    tr46 "^1.0.1"
+    webidl-conversions "^4.0.2"
+
 which-module@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/which-module/-/which-module-2.0.0.tgz#d9ef07dce77b9902b8a3a8fa4b31c3e3f7e6e87a"
@@ -6712,7 +9085,7 @@ which-pm-runs@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/which-pm-runs/-/which-pm-runs-1.0.0.tgz#670b3afbc552e0b55df6b7780ca74615f23ad1cb"
 
-which@1, which@^1.3.0:
+which@1, which@^1.2.12, which@^1.3.0:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/which/-/which-1.3.1.tgz#a45043d54f5805316da8d62f9f50918d3da70b0a"
   dependencies:
@@ -6724,6 +9097,10 @@ which@^1.2.9:
   dependencies:
     isexe "^2.0.0"
 
+white-space-x@^3.0.0:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/white-space-x/-/white-space-x-3.0.1.tgz#81a82d5432da725aba5ca671624bb579c9e66d4f"
+
 wide-align@^1.1.0:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/wide-align/-/wide-align-1.1.2.tgz#571e0f1b0604636ebc0dfc21b0339bbe31341710"
@@ -6750,14 +9127,14 @@ wordwrap@0.0.2:
   version "0.0.2"
   resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-0.0.2.tgz#b79669bb42ecb409f83d583cad52ca17eaa1643f"
 
+wordwrap@1.0.0, wordwrap@~1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-1.0.0.tgz#27584810891456a4171c8d0226441ade90cbcaeb"
+
 wordwrap@~0.0.2:
   version "0.0.3"
   resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-0.0.3.tgz#a3d5da6cd5c0bc0008d37234bbaf1bed63059107"
 
-wordwrap@~1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-1.0.0.tgz#27584810891456a4171c8d0226441ade90cbcaeb"
-
 wrap-ansi@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/wrap-ansi/-/wrap-ansi-2.1.0.tgz#d8fc3d284dd05794fe84973caecdd1cf824fdd85"
@@ -6777,7 +9154,7 @@ write-file-atomic@^1.1.4:
     imurmurhash "^0.1.4"
     slide "^1.1.5"
 
-write-file-atomic@^2.0.0, write-file-atomic@^2.3.0:
+write-file-atomic@^2.0.0, write-file-atomic@^2.1.0, write-file-atomic@^2.3.0:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/write-file-atomic/-/write-file-atomic-2.3.0.tgz#1ff61575c2e2a4e8e510d6fa4e243cce183999ab"
   dependencies:
@@ -6817,6 +9194,12 @@ ws@^3.0.0:
     safe-buffer "~5.1.0"
     ultron "~1.1.0"
 
+ws@^5.2.0:
+  version "5.2.2"
+  resolved "https://registry.yarnpkg.com/ws/-/ws-5.2.2.tgz#dffef14866b8e8dc9133582514d1befaf96e980f"
+  dependencies:
+    async-limiter "~1.0.0"
+
 xdg-basedir@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/xdg-basedir/-/xdg-basedir-3.0.0.tgz#496b2cc109eca8dbacfe2dc72b603c17c5870ad4"
@@ -6839,6 +9222,10 @@ xhr-request@^1.0.1:
     url-set-query "^1.0.0"
     xhr "^2.0.4"
 
+xhr2@^0.1.3:
+  version "0.1.4"
+  resolved "https://registry.yarnpkg.com/xhr2/-/xhr2-0.1.4.tgz#7f87658847716db5026323812f818cadab387a5f"
+
 xhr@^2.0.4, xhr@^2.3.3:
   version "2.4.1"
   resolved "https://registry.yarnpkg.com/xhr/-/xhr-2.4.1.tgz#ba982cced205ae5eec387169ac9dc77ca4853d38"
@@ -6848,6 +9235,20 @@ xhr@^2.0.4, xhr@^2.3.3:
     parse-headers "^2.0.0"
     xtend "^4.0.0"
 
+xml-name-validator@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/xml-name-validator/-/xml-name-validator-3.0.0.tgz#6ae73e06de4d8c6e47f9fb181f78d648ad457c6a"
+
+xmlhttprequest-cookie@^0.9.2:
+  version "0.9.7"
+  resolved "https://registry.yarnpkg.com/xmlhttprequest-cookie/-/xmlhttprequest-cookie-0.9.7.tgz#4b954d1e53b5608182247a54cae69103696b654c"
+  dependencies:
+    xmlhttprequest ">=1.8.0"
+
+xmlhttprequest@>=1.8.0:
+  version "1.8.0"
+  resolved "https://registry.yarnpkg.com/xmlhttprequest/-/xmlhttprequest-1.8.0.tgz#67fe075c5c24fef39f9d65f5f7b7fe75171968fc"
+
 xregexp@4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/xregexp/-/xregexp-4.0.0.tgz#e698189de49dd2a18cc5687b05e17c8e43943020"
@@ -6890,7 +9291,7 @@ yargs-parser@^9.0.2:
   dependencies:
     camelcase "^4.1.0"
 
-yargs@11.1.0:
+yargs@11.1.0, yargs@^11.0.0:
   version "11.1.0"
   resolved "https://registry.yarnpkg.com/yargs/-/yargs-11.1.0.tgz#90b869934ed6e871115ea2ff58b03f4724ed2d77"
   dependencies:

From d1db17aefc938ec057de0199e53b8c444543708e Mon Sep 17 00:00:00 2001
From: Matt Condon <mattgcondon@gmail.com>
Date: Mon, 20 Aug 2018 18:42:04 -0700
Subject: [PATCH 10/28] feat: fix tests not finishing

---
 .gitignore                                         | 1 +
 packages/gnarly-core/package.json                  | 4 ++--
 packages/gnarly-core/test/stores/AllStores.spec.ts | 8 ++++----
 3 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/.gitignore b/.gitignore
index 5ca885d..d0d92f8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -41,3 +41,4 @@ lib
 lcov.info
 .coveralls.yml
 *.sqlite
+log.txt
diff --git a/packages/gnarly-core/package.json b/packages/gnarly-core/package.json
index 8705906..05f7a82 100644
--- a/packages/gnarly-core/package.json
+++ b/packages/gnarly-core/package.json
@@ -8,8 +8,8 @@
     "prepare": "npm run build",
     "build": "npm run build-ts && npm run tslint",
     "start": "node lib/index.js",
-    "test": "TS_NODE_PROJECT=./tsconfig.test.json nyc --reporter=text mocha -r ts-node/register -r source-map-support/register --full-trace 'test/**/*.spec.ts'",
-    "watch-test": " TS_NODE_PROJECT=./tsconfig.test.json mocha --watch --watch-extensions ts -r ts-node/register -r source-map-support/register --full-trace 'test/**/*.spec.ts'",
+    "test": "TS_NODE_PROJECT=./tsconfig.test.json nyc --reporter=text mocha --exit -r ts-node/register -r source-map-support/register --full-trace 'test/**/*.spec.ts'",
+    "watch-test": " TS_NODE_PROJECT=./tsconfig.test.json mocha --exit --watch --watch-extensions ts -r ts-node/register -r source-map-support/register --full-trace 'test/**/*.spec.ts'",
     "coverage": "nyc report --reporter=text-lcov > ./lcov.info",
     "build-ts": "tsc",
     "watch-ts": "tsc -w",
diff --git a/packages/gnarly-core/test/stores/AllStores.spec.ts b/packages/gnarly-core/test/stores/AllStores.spec.ts
index fde7199..0358ff6 100644
--- a/packages/gnarly-core/test/stores/AllStores.spec.ts
+++ b/packages/gnarly-core/test/stores/AllStores.spec.ts
@@ -17,9 +17,9 @@ describe('All Stores', function () {
   const sequelizeStore = new SequelizePersistInterface(Sequelize, sequelize)
 
   describe('PouchDB Store (pouchdb-server)', function () {
-    this.timeout(9000)
+    this.timeout(12000)
     before(async function () {
-      this.child = exec('pouchdb-server -p 5985 -m -d /tmp')
+      this.child = exec('pouchdb-server -p 5985 -m')
       this.child.on('error', (error) => {
         console.log(`child error:\n${error}`)
       })
@@ -34,12 +34,12 @@ describe('All Stores', function () {
   })
 
   describe('PouchDB Store (default)', function () {
-    this.timeout(9000)
+    this.timeout(12000)
     // assumes pouchdb-server/CouchDB available on default port
     shouldBehaveLikePersistInterface(defaultPouchStore)
   })
 
-  describe.only('Sequelize Store (Postgres)', function () {
+  describe('Sequelize Store (Postgres)', function () {
     this.timeout(2000)
     // assumes postgres is running locally on default port
     shouldBehaveLikePersistInterface(sequelizeStore)

From 4ddd4092eea71ba21cf4f5192650e8a67765a417 Mon Sep 17 00:00:00 2001
From: Matt Condon <mattgcondon@gmail.com>
Date: Mon, 20 Aug 2018 18:43:01 -0700
Subject: [PATCH 11/28] fix: stream test progress

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index a57e2cc..69ff179 100644
--- a/package.json
+++ b/package.json
@@ -4,7 +4,7 @@
   "scripts": {
     "watch-ts": "lerna run watch-ts --parallel",
     "build-ts": "lerna run build-ts",
-    "test": "lerna run test --scope @xlnt/gnarly-core",
+    "test": "lerna run test --stream --scope @xlnt/gnarly-core",
     "lint": "lerna run lint --parallel",
     "clean": "lerna clean --yes && lerna exec --parallel -- rm -r ./lib",
     "coverage": "yarn run coverage:generate && yarn run coverage:submit",

From ceffd5239b4fd82d5ba0ef7e158d5184304fba54 Mon Sep 17 00:00:00 2001
From: Matt Condon <mattgcondon@gmail.com>
Date: Mon, 20 Aug 2018 23:19:58 -0700
Subject: [PATCH 12/28] fix: use latest postgres for travis

---
 .travis.yml | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index c39d9b5..9172f3e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,10 +3,16 @@ sudo: required
 group: beta
 language: node_js
 node_js:
-- '10'
+  - '10'
+addons:
+  postgresql: '10'
+  apt:
+    packages:
+      - postgresql-10
+      - postgresql-client-10
 cache:
   directories:
-  - node_modules
+    - node_modules
 services:
   - postgresql
   - couchdb

From 04db835026e086595300129f3619c2e82d5332b7 Mon Sep 17 00:00:00 2001
From: Matt Condon <mattgcondon@gmail.com>
Date: Mon, 20 Aug 2018 23:43:18 -0700
Subject: [PATCH 13/28] fix: change postgres to 9.6

---
 .travis.yml | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index 9172f3e..8c8abcd 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,11 +5,7 @@ language: node_js
 node_js:
   - '10'
 addons:
-  postgresql: '10'
-  apt:
-    packages:
-      - postgresql-10
-      - postgresql-client-10
+  postgresql: '9.6'
 cache:
   directories:
     - node_modules

From ec0290d9b2fecc3218f00ad69bf62ece60365523 Mon Sep 17 00:00:00 2001
From: Matt Condon <mattgcondon@gmail.com>
Date: Thu, 23 Aug 2018 19:26:34 -0700
Subject: [PATCH 14/28] fix: instrument test

---
 packages/gnarly-core/src/stores/pouchdb.ts                    | 3 +++
 packages/gnarly-core/test/stores/PersistInterface.behavior.ts | 2 +-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/packages/gnarly-core/src/stores/pouchdb.ts b/packages/gnarly-core/src/stores/pouchdb.ts
index 74bbb74..ac19285 100644
--- a/packages/gnarly-core/src/stores/pouchdb.ts
+++ b/packages/gnarly-core/src/stores/pouchdb.ts
@@ -152,6 +152,9 @@ export default class PouchDBPersistInterface implements IPersistInterface {
     // god, this is the worst hack ever, but I'm tired of dealing with pouchdb's weird schema
     const allBlocks = await this.getHistoricalBlocks(reducerKey)
     const blocksToDelete = allBlocks.slice(0, -1 * blockRetention)
+    if (blocksToDelete.length) {
+      console.log('deleting blocks:', blocksToDelete.length)
+    }
     // ^ all blocks before blockRetention
     await db.bulkDocs(blocksToDelete.map((r) => ({ ...r, _deleted: true })))
   }
diff --git a/packages/gnarly-core/test/stores/PersistInterface.behavior.ts b/packages/gnarly-core/test/stores/PersistInterface.behavior.ts
index f9e0564..5abe8e4 100644
--- a/packages/gnarly-core/test/stores/PersistInterface.behavior.ts
+++ b/packages/gnarly-core/test/stores/PersistInterface.behavior.ts
@@ -2,7 +2,7 @@ import chai = require('chai')
 import { pickBy } from 'lodash'
 import 'mocha'
 
-const should = chai
+chai
   .use(require('chai-spies'))
   .should()
 

From bd7d035a7cf0f21412fdaa6912d45278a86eeb3c Mon Sep 17 00:00:00 2001
From: Matt Condon <mattgcondon@gmail.com>
Date: Thu, 23 Aug 2018 19:39:18 -0700
Subject: [PATCH 15/28] fix: increase timeout duration for tests

---
 packages/gnarly-core/test/stores/AllStores.spec.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/gnarly-core/test/stores/AllStores.spec.ts b/packages/gnarly-core/test/stores/AllStores.spec.ts
index 0358ff6..fbaefde 100644
--- a/packages/gnarly-core/test/stores/AllStores.spec.ts
+++ b/packages/gnarly-core/test/stores/AllStores.spec.ts
@@ -17,7 +17,7 @@ describe('All Stores', function () {
   const sequelizeStore = new SequelizePersistInterface(Sequelize, sequelize)
 
   describe('PouchDB Store (pouchdb-server)', function () {
-    this.timeout(12000)
+    this.timeout(22000)
     before(async function () {
       this.child = exec('pouchdb-server -p 5985 -m')
       this.child.on('error', (error) => {

From 0013c08c92a7ca2a4641655761b34e7777ddf91a Mon Sep 17 00:00:00 2001
From: Matt Condon <mattgcondon@gmail.com>
Date: Thu, 23 Aug 2018 19:41:53 -0700
Subject: [PATCH 16/28] fix: cache gnarly-core nodemodules directory

---
 .travis.yml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.travis.yml b/.travis.yml
index 8c8abcd..47c70d3 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,6 +9,7 @@ addons:
 cache:
   directories:
     - node_modules
+    - packages/gnarly-core/node_modules
 services:
   - postgresql
   - couchdb

From 7dd631dcf2f39cbafbdb0c84d9297a12593b0a9c Mon Sep 17 00:00:00 2001
From: Matt Condon <mattgcondon@gmail.com>
Date: Thu, 23 Aug 2018 19:42:42 -0700
Subject: [PATCH 17/28] fix: cache the rest of the node modules, too

---
 .travis.yml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/.travis.yml b/.travis.yml
index 47c70d3..720fd6a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -10,6 +10,10 @@ cache:
   directories:
     - node_modules
     - packages/gnarly-core/node_modules
+    - packages/gnarly-reducer-block-meta/node_modules
+    - packages/gnarly-reducer-erc20/node_modules
+    - packages/gnarly-reducer-erc721/node_modules
+    - packages/gnarly-reducer-events/node_modules
 services:
   - postgresql
   - couchdb

From ec971de7778cacc83f6f1701cd269a6626cb2d1e Mon Sep 17 00:00:00 2001
From: Matt Condon <mattgcondon@gmail.com>
Date: Thu, 23 Aug 2018 19:45:55 -0700
Subject: [PATCH 18/28] fix: add more instrumentation

---
 packages/gnarly-core/src/stores/sequelize.ts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/packages/gnarly-core/src/stores/sequelize.ts b/packages/gnarly-core/src/stores/sequelize.ts
index df7e039..7f246b5 100644
--- a/packages/gnarly-core/src/stores/sequelize.ts
+++ b/packages/gnarly-core/src/stores/sequelize.ts
@@ -217,13 +217,15 @@ export default class SequelizePersistInterface implements IPersistInterface {
       })
 
       // remove blocks that are further away than the block retention limit
-      await this.HistoricalBlock.destroy({
+      const numDestroyed = await this.HistoricalBlock.destroy({
         where: {
           reducerId: { [this.Sequelize.Op.eq]: reducerKey },
           numberDecimal: { [this.Sequelize.Op.lte]: blockNum.sub(toBN(blockRetention)).toString() },
         },
       })
 
+      console.log('destroyed length:', numDestroyed)
+
     } catch (error) {
       throw new Error(`Was not able to save historical block
       ${JSON.stringify(block)} in reducer ${reducerKey}. ${error.stack}`)

From 50a0c9b64ec67d5067ccf1508f5c4097098cb9b1 Mon Sep 17 00:00:00 2001
From: Matt Condon <mattgcondon@gmail.com>
Date: Thu, 23 Aug 2018 20:10:36 -0700
Subject: [PATCH 19/28] fix: minor changes

---
 packages/gnarly-core/src/stores/pouchdb.ts          | 13 +++++++------
 packages/gnarly-core/src/stores/sequelize.ts        |  4 +---
 .../test/stores/PersistInterface.behavior.ts        |  2 +-
 3 files changed, 9 insertions(+), 10 deletions(-)

diff --git a/packages/gnarly-core/src/stores/pouchdb.ts b/packages/gnarly-core/src/stores/pouchdb.ts
index ac19285..883ce5d 100644
--- a/packages/gnarly-core/src/stores/pouchdb.ts
+++ b/packages/gnarly-core/src/stores/pouchdb.ts
@@ -141,7 +141,7 @@ export default class PouchDBPersistInterface implements IPersistInterface {
 
   public saveHistoricalBlock = async (reducerKey: string, blockRetention: number, block: IJSONBlock): Promise<any> => {
     const db = await this.historicalBlocks.get(reducerKey)
-    await db.putIfNotExists({
+    await db.put({
       _id: uuid(),
       hash: block.hash,
       parentHash: block.parentHash,
@@ -151,12 +151,13 @@ export default class PouchDBPersistInterface implements IPersistInterface {
 
     // god, this is the worst hack ever, but I'm tired of dealing with pouchdb's weird schema
     const allBlocks = await this.getHistoricalBlocks(reducerKey)
-    const blocksToDelete = allBlocks.slice(0, -1 * blockRetention)
-    if (blocksToDelete.length) {
-      console.log('deleting blocks:', blocksToDelete.length)
+    if (allBlocks.length > blockRetention) {
+      // delete the blocks from [0, length - blockRetention)
+      // so for a length of 102 and retention of 100, delete the range [0, 2)
+      const blocksToDelete = allBlocks.slice(0, -1 * blockRetention)
+      // ^ all blocks before blockRetention
+      await db.bulkDocs(blocksToDelete.map((r) => ({ ...r, _deleted: true })))
     }
-    // ^ all blocks before blockRetention
-    await db.bulkDocs(blocksToDelete.map((r) => ({ ...r, _deleted: true })))
   }
 
   public deleteHistoricalBlock = async (reducerKey: string, blockHash: string): Promise<any> => {
diff --git a/packages/gnarly-core/src/stores/sequelize.ts b/packages/gnarly-core/src/stores/sequelize.ts
index 7f246b5..df7e039 100644
--- a/packages/gnarly-core/src/stores/sequelize.ts
+++ b/packages/gnarly-core/src/stores/sequelize.ts
@@ -217,15 +217,13 @@ export default class SequelizePersistInterface implements IPersistInterface {
       })
 
       // remove blocks that are further away than the block retention limit
-      const numDestroyed = await this.HistoricalBlock.destroy({
+      await this.HistoricalBlock.destroy({
         where: {
           reducerId: { [this.Sequelize.Op.eq]: reducerKey },
           numberDecimal: { [this.Sequelize.Op.lte]: blockNum.sub(toBN(blockRetention)).toString() },
         },
       })
 
-      console.log('destroyed length:', numDestroyed)
-
     } catch (error) {
       throw new Error(`Was not able to save historical block
       ${JSON.stringify(block)} in reducer ${reducerKey}. ${error.stack}`)
diff --git a/packages/gnarly-core/test/stores/PersistInterface.behavior.ts b/packages/gnarly-core/test/stores/PersistInterface.behavior.ts
index 5abe8e4..1750bdd 100644
--- a/packages/gnarly-core/test/stores/PersistInterface.behavior.ts
+++ b/packages/gnarly-core/test/stores/PersistInterface.behavior.ts
@@ -12,7 +12,7 @@ import { IPersistInterface } from '../../src/stores'
 import { buildChain, genesis } from '../utils'
 
 const MOCK_REDUCER_KEY = 'test'
-const MOCK_RETENTION = 10
+const MOCK_RETENTION = 100
 
 const onlyKeys = (keys: string[]) => (thing: object) => pickBy(thing, (value, key) => keys.includes(key))
 

From 7c28c052bfce232eec2d5e8373da15dc5eca4a04 Mon Sep 17 00:00:00 2001
From: Matt Condon <mattgcondon@gmail.com>
Date: Sun, 2 Sep 2018 12:57:04 -0700
Subject: [PATCH 20/28] fix: add some comments for clarity

---
 packages/gnarly-core/src/stores/pouchdb.ts         | 13 ++++++++-----
 packages/gnarly-core/test/stores/AllStores.spec.ts |  1 +
 2 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/packages/gnarly-core/src/stores/pouchdb.ts b/packages/gnarly-core/src/stores/pouchdb.ts
index 883ce5d..64efc7c 100644
--- a/packages/gnarly-core/src/stores/pouchdb.ts
+++ b/packages/gnarly-core/src/stores/pouchdb.ts
@@ -66,7 +66,7 @@ const deleteById = async (db: PouchDB.Database, id: string) => {
   await db.remove(await db.get(id))
 }
 
-const reducerDb = (e: string) => `${e}/${GNARLY_DB_PREFIX}-reducers`
+const reducerDb = (e: string): PouchDB.Database => new PouchDB(`${e}/${GNARLY_DB_PREFIX}-reducers`)
 const historicalBlocksDb = (e: string) => async (key: string): Promise<PouchDB.Database> =>
   new PouchDB(`${e}/${GNARLY_DB_PREFIX}-historicalblocks-${key}`)
 const transactionsDb = (e: string) => async (key: string): Promise<PouchDB.Database> =>
@@ -85,6 +85,9 @@ class DyanmicDict<T> {
   public get = async (key: string) => {
     if (this.cache[key]) { return this.cache[key] }
 
+    // basically, we don't know the keys of existing dbs until they've been used at runtime
+    // so when we want to setdown the store we actually just hold onto that idea
+    // and then, when the database is actually created, we nuke the old one and then create the new one
     if (this.resetOnFirstInitialization) {
       await this.resetFn(await this.generator(key))
     }
@@ -241,10 +244,7 @@ export default class PouchDBPersistInterface implements IPersistInterface {
   // setup & setdown
   public setup = async (): Promise<any> => {
     try {
-      if (this.didSetDown) {
-        await (new PouchDB(reducerDb(this.dbEndpoint))).destroy()
-      }
-      this.reducers = new PouchDB(reducerDb(this.dbEndpoint))
+      this.reducers = reducerDb(this.dbEndpoint)
       this.historicalBlocks = new DyanmicDict(historicalBlocksDb(this.dbEndpoint), destroyDb, this.didSetDown)
       this.transactions = new DyanmicDict(transactionsDb(this.dbEndpoint), destroyDb, this.didSetDown)
     } catch (error) {
@@ -255,6 +255,9 @@ export default class PouchDBPersistInterface implements IPersistInterface {
   public setdown = async (): Promise<any> => {
     this.didSetDown = true
 
+    // @TODO - replace this dynamic dict setdown situation by iterating over all of the reducers
+    await reducerDb(this.dbEndpoint).destroy()
+
     if (this.historicalBlocks) {
       await this.historicalBlocks.flush()
     }
diff --git a/packages/gnarly-core/test/stores/AllStores.spec.ts b/packages/gnarly-core/test/stores/AllStores.spec.ts
index fbaefde..8082f18 100644
--- a/packages/gnarly-core/test/stores/AllStores.spec.ts
+++ b/packages/gnarly-core/test/stores/AllStores.spec.ts
@@ -11,6 +11,7 @@ describe('All Stores', function () {
   const pouchDBServerStore = new PouchDBPersistInterface('http://127.0.0.1:5985')
   const defaultPouchStore = new PouchDBPersistInterface('http://127.0.0.1:5984')
 
+  // don't forget to `create database travis_ci_test;` on your local postgres!
   const sequelize = new Sequelize('postgres://postgres@127.0.0.1:5432/travis_ci_test', {
     logging: false,
   })

From ddb47b2b6cce00a34832904e5bbce68ef2af3f4e Mon Sep 17 00:00:00 2001
From: Matt Condon <mattgcondon@gmail.com>
Date: Sun, 2 Sep 2018 13:07:00 -0700
Subject: [PATCH 21/28] fix: start all gnarly tables with a letter

---
 packages/gnarly-core/src/stores/pouchdb.ts | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/packages/gnarly-core/src/stores/pouchdb.ts b/packages/gnarly-core/src/stores/pouchdb.ts
index 64efc7c..cb0289c 100644
--- a/packages/gnarly-core/src/stores/pouchdb.ts
+++ b/packages/gnarly-core/src/stores/pouchdb.ts
@@ -43,9 +43,10 @@ async function* batch (
   }
 }
 
-// all databases  have --gnarly prefix so we can delete them and not destroy any user data
-// that might be sitting around
-const GNARLY_DB_PREFIX = '--gnarly'
+// all databases have this prefix so we can differentiate them
+// and ideally not destroy any normal data that might be sitting around
+// couchdb database names must begin with a letter
+const GNARLY_DB_PREFIX = 'z--gnarly'
 
 const sortByHexProp = (prop: string) => (a, b) => toBN(a[prop]).sub(toBN(b[prop])).toNumber()
 // const sortById = (a, b) => KSUID.parse(a._id).compare(KSUID.parse(b._id))

From 5bea34de9ee191d24ad055fab6cd2ca875a9923a Mon Sep 17 00:00:00 2001
From: Matt Condon <mattgcondon@gmail.com>
Date: Sun, 2 Sep 2018 13:09:40 -0700
Subject: [PATCH 22/28] fix: add small wait between db destroy and create

---
 packages/gnarly-core/src/stores/pouchdb.ts | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/packages/gnarly-core/src/stores/pouchdb.ts b/packages/gnarly-core/src/stores/pouchdb.ts
index cb0289c..6db7a48 100644
--- a/packages/gnarly-core/src/stores/pouchdb.ts
+++ b/packages/gnarly-core/src/stores/pouchdb.ts
@@ -12,7 +12,7 @@ import {
   ITransaction,
 } from '../ourbit/types'
 import { IPersistInterface } from '../stores'
-import { forEach, toBN, uuid } from '../utils'
+import { forEach, timeout, toBN, uuid } from '../utils'
 
 // https://pouchdb.com/api.html#batch_fetch
 async function* batch (
@@ -93,6 +93,9 @@ class DyanmicDict<T> {
       await this.resetFn(await this.generator(key))
     }
 
+    await timeout(200)
+    // ^ if we delete a table and then recreated it too quickly, we get no_db_file errors ಠ_ಠ
+
     this.cache[key] = await this.generator(key)
     return this.cache[key]
   }

From e528d686d50e59d7a81633853689221f25d3ae9a Mon Sep 17 00:00:00 2001
From: Matt Condon <mattgcondon@gmail.com>
Date: Sun, 2 Sep 2018 13:21:31 -0700
Subject: [PATCH 23/28] fix: remove couchdb test case

---
 packages/gnarly-core/test/stores/AllStores.spec.ts | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/packages/gnarly-core/test/stores/AllStores.spec.ts b/packages/gnarly-core/test/stores/AllStores.spec.ts
index 8082f18..69c8cb4 100644
--- a/packages/gnarly-core/test/stores/AllStores.spec.ts
+++ b/packages/gnarly-core/test/stores/AllStores.spec.ts
@@ -9,7 +9,7 @@ import shouldBehaveLikePersistInterface from './PersistInterface.behavior'
 
 describe('All Stores', function () {
   const pouchDBServerStore = new PouchDBPersistInterface('http://127.0.0.1:5985')
-  const defaultPouchStore = new PouchDBPersistInterface('http://127.0.0.1:5984')
+  // const defaultPouchStore = new PouchDBPersistInterface('http://127.0.0.1:5984')
 
   // don't forget to `create database travis_ci_test;` on your local postgres!
   const sequelize = new Sequelize('postgres://postgres@127.0.0.1:5432/travis_ci_test', {
@@ -34,11 +34,12 @@ describe('All Stores', function () {
     shouldBehaveLikePersistInterface(pouchDBServerStore)
   })
 
-  describe('PouchDB Store (default)', function () {
-    this.timeout(12000)
-    // assumes pouchdb-server/CouchDB available on default port
-    shouldBehaveLikePersistInterface(defaultPouchStore)
-  })
+  // @TODO - couchdb is not api-compatible with pouchdb-server it seems
+  // describe('PouchDB Store (default)', function () {
+  //   this.timeout(12000)
+  //   // assumes pouchdb-server/CouchDB available on default port
+  //   shouldBehaveLikePersistInterface(defaultPouchStore)
+  // })
 
   describe('Sequelize Store (Postgres)', function () {
     this.timeout(2000)

From 17bbf52d4a4553efbbb2f41d3a31ba532599f731 Mon Sep 17 00:00:00 2001
From: Matt Condon <mattgcondon@gmail.com>
Date: Wed, 5 Sep 2018 14:51:40 -0700
Subject: [PATCH 24/28] fix: rename IPersistInterface to IStore

---
 packages/gnarly-core/src/Gnarly.ts                          | 4 ++--
 packages/gnarly-core/src/globalstate.ts                     | 6 +++---
 .../src/stores/{IPersistInterface.ts => IStore.ts}          | 2 +-
 packages/gnarly-core/src/stores/index.ts                    | 4 ++--
 packages/gnarly-core/src/stores/pouchdb.ts                  | 4 ++--
 packages/gnarly-core/src/stores/sequelize.ts                | 4 ++--
 packages/gnarly-core/test/mocks/MockPersistInterface.ts     | 4 ++--
 .../gnarly-core/test/stores/PersistInterface.behavior.ts    | 4 ++--
 8 files changed, 16 insertions(+), 16 deletions(-)
 rename packages/gnarly-core/src/stores/{IPersistInterface.ts => IStore.ts} (97%)

diff --git a/packages/gnarly-core/src/Gnarly.ts b/packages/gnarly-core/src/Gnarly.ts
index 8bb587f..231069c 100644
--- a/packages/gnarly-core/src/Gnarly.ts
+++ b/packages/gnarly-core/src/Gnarly.ts
@@ -5,7 +5,7 @@ import { globalState } from './globalstate'
 
 import IIngestApi from './ingestion/IngestApi'
 import { IReducer } from './reducer'
-import { IPersistInterface } from './stores'
+import { IStore } from './stores'
 
 import ReducerRunner, { makeRunner } from './ReducerRunner'
 
@@ -14,7 +14,7 @@ class Gnarly {
 
   constructor (
     ingestApi: IIngestApi,
-    store: IPersistInterface,
+    store: IStore,
     private reducers: IReducer[],
   ) {
     globalState.setApi(ingestApi)
diff --git a/packages/gnarly-core/src/globalstate.ts b/packages/gnarly-core/src/globalstate.ts
index 0c138d3..6888580 100644
--- a/packages/gnarly-core/src/globalstate.ts
+++ b/packages/gnarly-core/src/globalstate.ts
@@ -8,7 +8,7 @@
 import IIngestApi from './ingestion/IngestApi'
 import IABIItem, { IABIItemInput } from './models/ABIItem'
 import Log from './models/Log'
-import { IPersistInterface } from './stores'
+import { IStore } from './stores'
 import { enhanceAbiItem, onlySupportedAbiItems } from './utils'
 
 export type ABIItemSet = IABIItem[]
@@ -17,7 +17,7 @@ export class GnarlyGlobals {
   // @TODO(shrugs) - do we need to move this to a contract artifact?
   public abis: { [s: string]: ABIItemSet } = {}
   public api: IIngestApi
-  public store: IPersistInterface
+  public store: IStore
 
   public getLogs = async (options) => {
     const logs = await this.api.getLogs(options)
@@ -28,7 +28,7 @@ export class GnarlyGlobals {
     this.api = api
   }
 
-  public setStore = (store: IPersistInterface) => {
+  public setStore = (store: IStore) => {
     this.store = store
   }
 
diff --git a/packages/gnarly-core/src/stores/IPersistInterface.ts b/packages/gnarly-core/src/stores/IStore.ts
similarity index 97%
rename from packages/gnarly-core/src/stores/IPersistInterface.ts
rename to packages/gnarly-core/src/stores/IStore.ts
index 7cbe9ea..e54be03 100644
--- a/packages/gnarly-core/src/stores/IPersistInterface.ts
+++ b/packages/gnarly-core/src/stores/IStore.ts
@@ -1,7 +1,7 @@
 import { IJSONBlock } from '../models/Block'
 import { ITransaction } from '../ourbit/types'
 
-export interface IPersistInterface {
+export interface IStore {
   // @TODO - how do you get typescript to stop complaining about AsyncIterator symbols?
 
   // reducer CRUD
diff --git a/packages/gnarly-core/src/stores/index.ts b/packages/gnarly-core/src/stores/index.ts
index d1c365a..2a8efe8 100644
--- a/packages/gnarly-core/src/stores/index.ts
+++ b/packages/gnarly-core/src/stores/index.ts
@@ -8,5 +8,5 @@ export {
 } from './pouchdb'
 
 export {
-  IPersistInterface,
-} from './IPersistInterface'
+  IStore,
+} from './IStore'
diff --git a/packages/gnarly-core/src/stores/pouchdb.ts b/packages/gnarly-core/src/stores/pouchdb.ts
index 6db7a48..34b8c3d 100644
--- a/packages/gnarly-core/src/stores/pouchdb.ts
+++ b/packages/gnarly-core/src/stores/pouchdb.ts
@@ -11,7 +11,7 @@ import { IJSONBlock } from '../models/Block'
 import {
   ITransaction,
 } from '../ourbit/types'
-import { IPersistInterface } from '../stores'
+import { IStore } from '../stores'
 import { forEach, timeout, toBN, uuid } from '../utils'
 
 // https://pouchdb.com/api.html#batch_fetch
@@ -112,7 +112,7 @@ class DyanmicDict<T> {
   }
 }
 
-export default class PouchDBPersistInterface implements IPersistInterface {
+export default class PouchDBPersistInterface implements IStore {
   private reducers: PouchDB.Database
   private historicalBlocks: DyanmicDict<PouchDB.Database>
   private transactions: DyanmicDict<PouchDB.Database>
diff --git a/packages/gnarly-core/src/stores/sequelize.ts b/packages/gnarly-core/src/stores/sequelize.ts
index df7e039..045ab6e 100644
--- a/packages/gnarly-core/src/stores/sequelize.ts
+++ b/packages/gnarly-core/src/stores/sequelize.ts
@@ -6,7 +6,7 @@ import { IJSONBlock } from '../models/Block'
 import {
   ITransaction,
 } from '../ourbit/types'
-import { IPersistInterface } from '../stores'
+import { IStore } from '../stores'
 import { toBN } from '../utils'
 
 export const makeSequelizeModels = (
@@ -127,7 +127,7 @@ async function* batch (
   }
 }
 
-export default class SequelizePersistInterface implements IPersistInterface {
+export default class SequelizePersistInterface implements IStore {
   private Reducer
   private HistoricalBlock
   private Transaction
diff --git a/packages/gnarly-core/test/mocks/MockPersistInterface.ts b/packages/gnarly-core/test/mocks/MockPersistInterface.ts
index f983005..7d8032c 100644
--- a/packages/gnarly-core/test/mocks/MockPersistInterface.ts
+++ b/packages/gnarly-core/test/mocks/MockPersistInterface.ts
@@ -3,7 +3,7 @@ import { IJSONBlock } from '../../src/models/Block'
 import {
   ITransaction,
 } from '../../src/ourbit'
-import { IPersistInterface } from '../../src/stores'
+import { IStore } from '../../src/stores'
 
 async function* iter (
   res: any[] = [],
@@ -13,7 +13,7 @@ async function* iter (
   }
 }
 
-export default class MockPersistInterface implements IPersistInterface {
+export default class MockPersistInterface implements IStore {
 
   private reducers: any[] = []
   private transactions: ITransaction[] = []
diff --git a/packages/gnarly-core/test/stores/PersistInterface.behavior.ts b/packages/gnarly-core/test/stores/PersistInterface.behavior.ts
index 1750bdd..7384f4f 100644
--- a/packages/gnarly-core/test/stores/PersistInterface.behavior.ts
+++ b/packages/gnarly-core/test/stores/PersistInterface.behavior.ts
@@ -8,7 +8,7 @@ chai
 
 import { forEach } from '../../src/utils'
 
-import { IPersistInterface } from '../../src/stores'
+import { IStore } from '../../src/stores'
 import { buildChain, genesis } from '../utils'
 
 const MOCK_REDUCER_KEY = 'test'
@@ -27,7 +27,7 @@ const blocksShouldEqual = (as, bs) => as.map(onlyKeys(historialBlockKeys))
     bs.map(onlyKeys(historialBlockKeys)),
   )
 
-const shouldBehaveAsStore = (store: IPersistInterface) => {
+const shouldBehaveAsStore = (store: IStore) => {
   const saveAllHistoricalBlocks = async (blocks) => forEach(blocks, (block) =>
     store.saveHistoricalBlock(MOCK_REDUCER_KEY, MOCK_RETENTION, block),
   )

From b40f7caaf81eb953d54f59ba825aa0b3d69d05c4 Mon Sep 17 00:00:00 2001
From: Matt Condon <mattgcondon@gmail.com>
Date: Wed, 5 Sep 2018 15:03:27 -0700
Subject: [PATCH 25/28] fix: remove couchdb service

---
 .travis.yml | 1 -
 1 file changed, 1 deletion(-)

diff --git a/.travis.yml b/.travis.yml
index 720fd6a..c68d4f7 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -16,7 +16,6 @@ cache:
     - packages/gnarly-reducer-events/node_modules
 services:
   - postgresql
-  - couchdb
 matrix:
   fast_finish: true
 before_script:

From 04e6707a1c979b9eaa0e533ae00a21cbcf67fb5e Mon Sep 17 00:00:00 2001
From: Matt Condon <mattgcondon@gmail.com>
Date: Wed, 5 Sep 2018 15:06:48 -0700
Subject: [PATCH 26/28] feat: rename PersistInterfaces to Stores

---
 packages/gnarly-bin/src/index.ts                       |  8 ++++----
 packages/gnarly-core/src/stores/IStore.ts              |  2 +-
 .../src/stores/{pouchdb.ts => PouchDBStore.ts}         |  2 +-
 .../src/stores/{sequelize.ts => SequelizeStore.ts}     |  2 +-
 packages/gnarly-core/src/stores/index.ts               | 10 +++++-----
 packages/gnarly-core/test/Blockstream.spec.ts          |  6 +++---
 packages/gnarly-core/test/Ourbit.spec.ts               |  4 ++--
 packages/gnarly-core/test/globalstate.spec.ts          |  4 ++--
 .../mocks/{MockPersistInterface.ts => MockStore.ts}    |  2 +-
 packages/gnarly-core/test/stores/AllStores.spec.ts     | 10 +++++-----
 10 files changed, 25 insertions(+), 25 deletions(-)
 rename packages/gnarly-core/src/stores/{pouchdb.ts => PouchDBStore.ts} (99%)
 rename packages/gnarly-core/src/stores/{sequelize.ts => SequelizeStore.ts} (99%)
 rename packages/gnarly-core/test/mocks/{MockPersistInterface.ts => MockStore.ts} (97%)

diff --git a/packages/gnarly-bin/src/index.ts b/packages/gnarly-bin/src/index.ts
index d12e292..51e76cd 100644
--- a/packages/gnarly-bin/src/index.ts
+++ b/packages/gnarly-bin/src/index.ts
@@ -10,8 +10,8 @@ const debug = makeDebug('gnarly')
 import Sequelize = require('sequelize')
 
 import Gnarly, {
-  PouchDBPersistInterface,
-  SequelizePersistInterface,
+  PouchDBStore,
+  SequelizeStore,
   Web3Api,
 } from '@xlnt/gnarly-core'
 
@@ -97,8 +97,8 @@ const main = async () => {
     eventsReducer,
   ]
 
-  const store = new PouchDBPersistInterface('http://127.0.0.1:5984')
-  // const store = new SequelizePersistInterface(Sequelize, sequelize)
+  // const store = new PouchDBStore('http://127.0.0.1:5984')
+  const store = new SequelizeStore(Sequelize, sequelize)
 
   const ingestApi = new Web3Api(nodeEndpoint)
 
diff --git a/packages/gnarly-core/src/stores/IStore.ts b/packages/gnarly-core/src/stores/IStore.ts
index e54be03..785ab96 100644
--- a/packages/gnarly-core/src/stores/IStore.ts
+++ b/packages/gnarly-core/src/stores/IStore.ts
@@ -1,7 +1,7 @@
 import { IJSONBlock } from '../models/Block'
 import { ITransaction } from '../ourbit/types'
 
-export interface IStore {
+export default interface IStore {
   // @TODO - how do you get typescript to stop complaining about AsyncIterator symbols?
 
   // reducer CRUD
diff --git a/packages/gnarly-core/src/stores/pouchdb.ts b/packages/gnarly-core/src/stores/PouchDBStore.ts
similarity index 99%
rename from packages/gnarly-core/src/stores/pouchdb.ts
rename to packages/gnarly-core/src/stores/PouchDBStore.ts
index 34b8c3d..c23cd5b 100644
--- a/packages/gnarly-core/src/stores/pouchdb.ts
+++ b/packages/gnarly-core/src/stores/PouchDBStore.ts
@@ -112,7 +112,7 @@ class DyanmicDict<T> {
   }
 }
 
-export default class PouchDBPersistInterface implements IStore {
+export default class PouchDBStore implements IStore {
   private reducers: PouchDB.Database
   private historicalBlocks: DyanmicDict<PouchDB.Database>
   private transactions: DyanmicDict<PouchDB.Database>
diff --git a/packages/gnarly-core/src/stores/sequelize.ts b/packages/gnarly-core/src/stores/SequelizeStore.ts
similarity index 99%
rename from packages/gnarly-core/src/stores/sequelize.ts
rename to packages/gnarly-core/src/stores/SequelizeStore.ts
index 045ab6e..b505cdb 100644
--- a/packages/gnarly-core/src/stores/sequelize.ts
+++ b/packages/gnarly-core/src/stores/SequelizeStore.ts
@@ -127,7 +127,7 @@ async function* batch (
   }
 }
 
-export default class SequelizePersistInterface implements IStore {
+export default class SequelizeStore implements IStore {
   private Reducer
   private HistoricalBlock
   private Transaction
diff --git a/packages/gnarly-core/src/stores/index.ts b/packages/gnarly-core/src/stores/index.ts
index 2a8efe8..e572ad2 100644
--- a/packages/gnarly-core/src/stores/index.ts
+++ b/packages/gnarly-core/src/stores/index.ts
@@ -1,12 +1,12 @@
 export {
-  default as SequelizePersistInterface,
+  default as SequelizeStore,
   makeSequelizeModels,
-} from './sequelize'
+} from './SequelizeStore'
 
 export {
-  default as PouchDBPersistInterface,
-} from './pouchdb'
+  default as PouchDBStore,
+} from './PouchDBStore'
 
 export {
-  IStore,
+  default as IStore,
 } from './IStore'
diff --git a/packages/gnarly-core/test/Blockstream.spec.ts b/packages/gnarly-core/test/Blockstream.spec.ts
index 46d2c08..b508ff2 100644
--- a/packages/gnarly-core/test/Blockstream.spec.ts
+++ b/packages/gnarly-core/test/Blockstream.spec.ts
@@ -7,7 +7,7 @@ import { IJSONBlock } from '../src/models/Block'
 import { forEach, timeout, toBN, toHex } from '../src/utils'
 
 import MockIngestApi from './mocks/MockIngestApi'
-import MockPersistInterface from './mocks/MockPersistInterface'
+import MockStore from './mocks/MockStore'
 import { buildChain, genesis } from './utils'
 
 const RETENTION = 20
@@ -18,7 +18,7 @@ const should = chai
   .use(require('chai-spies'))
   .should()
 
-const bootstrapHistoricalBlocks = async (reducerKey: string, blocks, store: MockPersistInterface, bs: Blockstream) => {
+const bootstrapHistoricalBlocks = async (reducerKey: string, blocks, store: MockStore, bs: Blockstream) => {
   await forEach(blocks, async (block) => store.saveHistoricalBlock(reducerKey, 100, block), { concurrency: 1 })
   await bs.initWithHistoricalBlocks(blocks)
 }
@@ -42,7 +42,7 @@ describe('Blockstream', function () {
     })
 
     this.api = new MockIngestApi()
-    this.store = new MockPersistInterface()
+    this.store = new MockStore()
     globalState.setApi(this.api)
     globalState.setStore(this.store)
 
diff --git a/packages/gnarly-core/test/Ourbit.spec.ts b/packages/gnarly-core/test/Ourbit.spec.ts
index d50ef04..ff03918 100644
--- a/packages/gnarly-core/test/Ourbit.spec.ts
+++ b/packages/gnarly-core/test/Ourbit.spec.ts
@@ -8,7 +8,7 @@ import Ourbit, {
   ITransaction, ITxExtra,
 } from '../src/ourbit'
 import { ReducerContext } from '../src/reducer'
-import MockPersistInterface from './mocks/MockPersistInterface'
+import MockStore from './mocks/MockStore'
 
 chai
   .use(require('chai-spies'))
@@ -62,7 +62,7 @@ describe('Ourbit', () => {
     }
 
     targetState = {}
-    const store = new MockPersistInterface()
+    const store = new MockStore()
     sandbox.on(store, [
       'saveTransaction',
     ])
diff --git a/packages/gnarly-core/test/globalstate.spec.ts b/packages/gnarly-core/test/globalstate.spec.ts
index 2fbc8b2..5bf1304 100644
--- a/packages/gnarly-core/test/globalstate.spec.ts
+++ b/packages/gnarly-core/test/globalstate.spec.ts
@@ -6,7 +6,7 @@ import Log from '../src/models/Log'
 import { enhanceAbiItem } from '../src/utils'
 
 import MockIngestApi from './mocks/MockIngestApi'
-import MockPersistInterface from './mocks/MockPersistInterface'
+import MockStore from './mocks/MockStore'
 
 import erc20Abi from './data/erc20Abi'
 
@@ -36,7 +36,7 @@ describe('globalstate', function () {
 
   context('store', function () {
     beforeEach(async function () {
-      this.store = new MockPersistInterface()
+      this.store = new MockStore()
     })
 
     it('can set/get store', async function () {
diff --git a/packages/gnarly-core/test/mocks/MockPersistInterface.ts b/packages/gnarly-core/test/mocks/MockStore.ts
similarity index 97%
rename from packages/gnarly-core/test/mocks/MockPersistInterface.ts
rename to packages/gnarly-core/test/mocks/MockStore.ts
index 7d8032c..f2fdb34 100644
--- a/packages/gnarly-core/test/mocks/MockPersistInterface.ts
+++ b/packages/gnarly-core/test/mocks/MockStore.ts
@@ -13,7 +13,7 @@ async function* iter (
   }
 }
 
-export default class MockPersistInterface implements IStore {
+export default class MockStore implements IStore {
 
   private reducers: any[] = []
   private transactions: ITransaction[] = []
diff --git a/packages/gnarly-core/test/stores/AllStores.spec.ts b/packages/gnarly-core/test/stores/AllStores.spec.ts
index 69c8cb4..08061bd 100644
--- a/packages/gnarly-core/test/stores/AllStores.spec.ts
+++ b/packages/gnarly-core/test/stores/AllStores.spec.ts
@@ -1,21 +1,21 @@
 import { exec } from 'child_process'
 import Sequelize = require('sequelize')
 
-import PouchDBPersistInterface from '../../src/stores/pouchdb'
-import SequelizePersistInterface from '../../src/stores/sequelize'
+import PouchDBStore from '../../src/stores/pouchdb'
+import SequelizeStore from '../../src/stores/sequelize'
 import { timeout } from '../../src/utils'
 
 import shouldBehaveLikePersistInterface from './PersistInterface.behavior'
 
 describe('All Stores', function () {
-  const pouchDBServerStore = new PouchDBPersistInterface('http://127.0.0.1:5985')
-  // const defaultPouchStore = new PouchDBPersistInterface('http://127.0.0.1:5984')
+  const pouchDBServerStore = new PouchDBStore('http://127.0.0.1:5985')
+  // const defaultPouchStore = new PouchDBStore('http://127.0.0.1:5984')
 
   // don't forget to `create database travis_ci_test;` on your local postgres!
   const sequelize = new Sequelize('postgres://postgres@127.0.0.1:5432/travis_ci_test', {
     logging: false,
   })
-  const sequelizeStore = new SequelizePersistInterface(Sequelize, sequelize)
+  const sequelizeStore = new SequelizeStore(Sequelize, sequelize)
 
   describe('PouchDB Store (pouchdb-server)', function () {
     this.timeout(22000)

From 6c23aab532e83671b05bd9236425180b0add5367 Mon Sep 17 00:00:00 2001
From: Matt Condon <mattgcondon@gmail.com>
Date: Wed, 5 Sep 2018 15:07:44 -0700
Subject: [PATCH 27/28] fix: refactor store references

---
 ...PersistInterface.behavior.ts => Store.behavior.ts} |  0
 .../test/stores/{AllStores.spec.ts => Stores.spec.ts} | 11 +++++------
 2 files changed, 5 insertions(+), 6 deletions(-)
 rename packages/gnarly-core/test/stores/{PersistInterface.behavior.ts => Store.behavior.ts} (100%)
 rename packages/gnarly-core/test/stores/{AllStores.spec.ts => Stores.spec.ts} (78%)

diff --git a/packages/gnarly-core/test/stores/PersistInterface.behavior.ts b/packages/gnarly-core/test/stores/Store.behavior.ts
similarity index 100%
rename from packages/gnarly-core/test/stores/PersistInterface.behavior.ts
rename to packages/gnarly-core/test/stores/Store.behavior.ts
diff --git a/packages/gnarly-core/test/stores/AllStores.spec.ts b/packages/gnarly-core/test/stores/Stores.spec.ts
similarity index 78%
rename from packages/gnarly-core/test/stores/AllStores.spec.ts
rename to packages/gnarly-core/test/stores/Stores.spec.ts
index 08061bd..ab065e6 100644
--- a/packages/gnarly-core/test/stores/AllStores.spec.ts
+++ b/packages/gnarly-core/test/stores/Stores.spec.ts
@@ -1,11 +1,10 @@
 import { exec } from 'child_process'
 import Sequelize = require('sequelize')
 
-import PouchDBStore from '../../src/stores/pouchdb'
-import SequelizeStore from '../../src/stores/sequelize'
+import { PouchDBStore, SequelizeStore } from '../../src/stores'
 import { timeout } from '../../src/utils'
 
-import shouldBehaveLikePersistInterface from './PersistInterface.behavior'
+import Store from './Store.behavior'
 
 describe('All Stores', function () {
   const pouchDBServerStore = new PouchDBStore('http://127.0.0.1:5985')
@@ -31,19 +30,19 @@ describe('All Stores', function () {
       await this.child.kill()
     })
 
-    shouldBehaveLikePersistInterface(pouchDBServerStore)
+    Store(pouchDBServerStore)
   })
 
   // @TODO - couchdb is not api-compatible with pouchdb-server it seems
   // describe('PouchDB Store (default)', function () {
   //   this.timeout(12000)
   //   // assumes pouchdb-server/CouchDB available on default port
-  //   shouldBehaveLikePersistInterface(defaultPouchStore)
+  //   Store(defaultPouchStore)
   // })
 
   describe('Sequelize Store (Postgres)', function () {
     this.timeout(2000)
     // assumes postgres is running locally on default port
-    shouldBehaveLikePersistInterface(sequelizeStore)
+    Store(sequelizeStore)
   })
 })

From 551cba1807ee49a30152cb6dc900cafedb727ac6 Mon Sep 17 00:00:00 2001
From: Matt Condon <mattgcondon@gmail.com>
Date: Wed, 5 Sep 2018 20:28:21 -0700
Subject: [PATCH 28/28] feat: implement ksuids with mid in the key, remove mids
 elsewhere

---
 packages/gnarly-core/package.json             |   3 +
 packages/gnarly-core/src/ourbit/Ourbit.ts     |   1 +
 packages/gnarly-core/src/ourbit/types.ts      |   1 +
 .../gnarly-core/src/stores/PouchDBStore.ts    |  27 ++-
 .../gnarly-core/src/stores/SequelizeStore.ts  |  26 +--
 packages/gnarly-core/src/utils.ts             |  29 ++-
 packages/gnarly-core/test/Ourbit.spec.ts      |   9 +-
 .../test/factories/IOperationFactory.ts       |  12 ++
 .../test/factories/IPatchFactory.ts           |   9 +
 .../test/factories/ITransactionFactory.ts     |  10 +
 packages/gnarly-core/test/mocks/MockStore.ts  |   7 +-
 .../gnarly-core/test/stores/Store.behavior.ts | 194 ++++++++++++++----
 .../gnarly-core/test/stores/Stores.spec.ts    |  35 ++--
 yarn.lock                                     |  12 +-
 14 files changed, 283 insertions(+), 92 deletions(-)
 create mode 100644 packages/gnarly-core/test/factories/IOperationFactory.ts
 create mode 100644 packages/gnarly-core/test/factories/IPatchFactory.ts
 create mode 100644 packages/gnarly-core/test/factories/ITransactionFactory.ts

diff --git a/packages/gnarly-core/package.json b/packages/gnarly-core/package.json
index 05f7a82..34a4ae7 100644
--- a/packages/gnarly-core/package.json
+++ b/packages/gnarly-core/package.json
@@ -30,6 +30,7 @@
   "dependencies": {
     "@xlnt/fast-json-patch": "^2.0.8",
     "bn.js": "^4.11.8",
+    "crypto": "^1.0.1",
     "debug": "^3.1.0",
     "ethereumjs-blockstream": "^3.1.0",
     "isomorphic-fetch": "^2.2.1",
@@ -44,6 +45,7 @@
     "pouchdb-find": "^7.0.0",
     "pouchdb-upsert": "^2.2.0",
     "sequelize": "^4.35.2",
+    "string.prototype.padstart": "^3.0.0",
     "web3-eth-abi": "^1.0.0-beta.34",
     "web3-utils": "^1.0.0-beta.34"
   },
@@ -58,6 +60,7 @@
     "@types/pouchdb-upsert": "^2.2.3",
     "bn-chai": "^1.0.1",
     "chai": "^4.1.2",
+    "chai-as-promised": "^7.1.1",
     "chai-spies": "^1.0.0",
     "concurrently": "^3.5.1",
     "mocha": "^5.0.4",
diff --git a/packages/gnarly-core/src/ourbit/Ourbit.ts b/packages/gnarly-core/src/ourbit/Ourbit.ts
index 6383e07..68f2f39 100644
--- a/packages/gnarly-core/src/ourbit/Ourbit.ts
+++ b/packages/gnarly-core/src/ourbit/Ourbit.ts
@@ -69,6 +69,7 @@ class Ourbit {
         id: uuid(),
         operations: ops.map((op) => ({
           ...op,
+          id: uuid(),
           volatile: false,
         })),
         reason: this.context.getCurrentReason(),
diff --git a/packages/gnarly-core/src/ourbit/types.ts b/packages/gnarly-core/src/ourbit/types.ts
index 4cb9a7a..1a8833a 100644
--- a/packages/gnarly-core/src/ourbit/types.ts
+++ b/packages/gnarly-core/src/ourbit/types.ts
@@ -4,6 +4,7 @@
  * If it is volatile, it is not persisted in memory and is handled differently.
  */
 export interface IOperation {
+  id: string,
   path: string,
   op: 'add' | 'replace' | 'remove' | 'move' | 'copy' | 'test' | '_get',
   // ^ we will only actually have add|replace|remove
diff --git a/packages/gnarly-core/src/stores/PouchDBStore.ts b/packages/gnarly-core/src/stores/PouchDBStore.ts
index c23cd5b..62e4344 100644
--- a/packages/gnarly-core/src/stores/PouchDBStore.ts
+++ b/packages/gnarly-core/src/stores/PouchDBStore.ts
@@ -21,24 +21,24 @@ async function* batch (
   batchSize = 1000,
   mapper: (v: any) => any = identity,
 ) {
-  let totalRows = 1 // should be 0 at first, but we want to trigger the first iteration
   let lastId
 
-  while (totalRows > 0) {
+  while (true) {
     const opts = {
       ...query,
-      startkey: lastId,
-      skip: 1,
+      startkey: lastId || undefined,
+      skip: lastId ? 1 : 0,
       limit: batchSize,
       include_docs: true,
+      inclusive_end: true,
     }
 
     const res = await db.allDocs(opts)
-    const gots = mapper(res.rows)
-    yield gots
+    if (res.rows.length === 0) {
+      break
+    }
 
-    totalRows = gots.total_rows
-    if (totalRows === 0) { break }
+    yield mapper(res.rows)
     lastId = res.rows[res.rows.length - 1].id
   }
 }
@@ -177,7 +177,16 @@ export default class PouchDBStore implements IStore {
 
   // transaction CRUD
   public getAllTransactionsTo = async (reducerKey: string, toTxId: null | string): Promise<any> => {
+    if (toTxId === null || toTxId === undefined) {
+      throw new Error(`Invalid txId: ${toTxId}`)
+    }
+
     const db = await this.transactions.get(reducerKey)
+    try {
+      await db.get(toTxId)
+    } catch (error) {
+      throw new Error(`Invalid txId: ${toTxId} not found in reducer ${reducerKey}: ${error}`)
+    }
 
     return batch(db, { endkey: toTxId }, 1000, (rows) =>
       rows
@@ -195,7 +204,7 @@ export default class PouchDBStore implements IStore {
   }
 
   public getLatestTransaction = async (reducerKey: string): Promise<ITransaction> => {
-    // in pouch, our ksuids aren't sorting tot he specificity we want
+    // in pouch, our ksuids aren't sorting to the specificity we want
     // so pull the last ~10 and then sort by blocknumber
     const db = await this.transactions.get(reducerKey)
     const res = await db.allDocs({
diff --git a/packages/gnarly-core/src/stores/SequelizeStore.ts b/packages/gnarly-core/src/stores/SequelizeStore.ts
index b505cdb..854956a 100644
--- a/packages/gnarly-core/src/stores/SequelizeStore.ts
+++ b/packages/gnarly-core/src/stores/SequelizeStore.ts
@@ -20,8 +20,7 @@ export const makeSequelizeModels = (
   })
 
   const Transaction = sequelize.define('transaction', {
-    id: { type: DataTypes.STRING, primaryKey: true },
-    mid: { type: DataTypes.INTEGER, autoIncrement: true },
+    id: { type: DataTypes.STRING(27), primaryKey: true },
     blockHash: { type: DataTypes.STRING },
     blockNumber: { type: DataTypes.STRING },
   }, {
@@ -31,12 +30,11 @@ export const makeSequelizeModels = (
   })
 
   const Patch = sequelize.define('patch', {
-    id: { type: DataTypes.STRING, primaryKey: true },
-    mid: { type: DataTypes.INTEGER, autoIncrement: true, primaryKey: true },
+    id: { type: DataTypes.STRING(27), primaryKey: true },
   })
 
   const Operation = sequelize.define('operation', {
-    mid: { type: DataTypes.INTEGER, autoIncrement: true, primaryKey: true },
+    id: { type: DataTypes.STRING(27), primaryKey: true },
     path: { type: DataTypes.STRING },
     op: { type: DataTypes.JSONB },
     value: { type: DataTypes.JSONB },
@@ -258,7 +256,7 @@ export default class SequelizeStore implements IStore {
   public getLatestTransaction = async (reducerKey: string): Promise<ITransaction> => {
     try {
       return (await this.Transaction.findOne({
-        order: [['mid', 'DESC']],
+        order: [['id', 'DESC']],
         rejectOnEmpty: true,
         include: [{
           model: this.Reducer,
@@ -272,6 +270,10 @@ export default class SequelizeStore implements IStore {
 
   public getAllTransactionsTo = async function (reducerKey: string, toTxId: null | string):
     Promise<any> {
+    if (toTxId === null || toTxId === undefined) {
+      throw new Error(`Invalid txId: ${toTxId}`)
+    }
+
     let initial
     try {
       initial = await this.getPlainTransaction(reducerKey, toTxId)
@@ -280,7 +282,7 @@ export default class SequelizeStore implements IStore {
     }
 
     const query = {
-      where: { mid: { [this.Sequelize.Op.lte]: initial.mid } },
+      where: { id: { [this.Sequelize.Op.lte]: initial.id } },
       include: [{
         model: this.Patch,
         include: [{
@@ -292,9 +294,9 @@ export default class SequelizeStore implements IStore {
         where: { id: { [this.Sequelize.Op.eq]: reducerKey } },
       }],
       order: [
-        ['mid', 'ASC'],
-        [{ model: this.Patch }, 'mid', 'ASC'],
-        [{ model: this.Patch }, { model: this.Operation }, 'mid', 'ASC'],
+        ['id', 'ASC'],
+        [{ model: this.Patch }, 'id', 'ASC'],
+        [{ model: this.Patch }, { model: this.Operation }, 'id', 'ASC'],
       ],
     }
 
@@ -356,8 +358,8 @@ export default class SequelizeStore implements IStore {
           where: { id: { [this.Sequelize.Op.eq]: reducerKey } },
         }],
         order: [
-          [{ model: this.Patch }, 'mid', 'ASC'],
-          [{ model: this.Patch }, { model: this.Operation }, 'mid', 'ASC'],
+          [{ model: this.Patch }, 'id', 'ASC'],
+          [{ model: this.Patch }, { model: this.Operation }, 'id', 'ASC'],
         ],
         rejectOnEmpty: true,
       })).get({ plain })
diff --git a/packages/gnarly-core/src/utils.ts b/packages/gnarly-core/src/utils.ts
index 35a835b..7f97ea9 100644
--- a/packages/gnarly-core/src/utils.ts
+++ b/packages/gnarly-core/src/utils.ts
@@ -1,10 +1,12 @@
 import { Operation } from '@xlnt/fast-json-patch'
 import BN = require('bn.js')
-import KSUID = require('ksuid')
+import { randomBytes } from 'crypto'
+import base62 = require('ksuid/base62')
 import { flatMap } from 'lodash'
 import memoize from 'moize'
 import numberToBN = require('number-to-bn')
 import pMap = require('p-map')
+import padStart = require('string.prototype.padstart')
 import web3Utils = require('web3-utils')
 
 import IABIItem, { IABIItemInput } from './models/ABIItem'
@@ -16,8 +18,28 @@ import {
 
 const API_CACHE_MAX_AGE = 1000
 
-// shrugs: I feel like using the sync randomness here isn't really a big deal, but we'll see
-export const uuid = () => KSUID.randomSync().string
+// god, a blockchain would _actually_ solve this problem ಠ_ಠ
+let terribleMonotonicallyIncreasingId = 0
+
+// pouchdb requires more specificity than KSUID's millisecond resolution for keeping order of docs
+// so we use this terrible monotonically increasing id to make sure that, in the case of a single
+// gnalry instance (which will be the case for the foreseeable future), everything is dandy
+// luckily, we don't need to keep this id in a database because if the process crashes, the
+// universe will still move forward, meaning as long as we don't reboot within a few nanoseconds (lol)
+// there will always be enough time to make sure that the next doc has a higher ksuid than the previous
+const STRING_ENCODED_LENGTH = 27
+export const uuid = () => {
+  const timestamp = new Date().getTime() + terribleMonotonicallyIncreasingId++
+  const timestampBuffer = Buffer.allocUnsafe(8)
+  timestampBuffer.writeDoubleBE(timestamp, 0)
+
+  const buf = Buffer.concat([
+    timestampBuffer,
+    Buffer.from(randomBytes(12)),
+  ])
+  const encoded = base62.encode(buf, STRING_ENCODED_LENGTH)
+  return padStart(encoded, STRING_ENCODED_LENGTH, '0')
+}
 
 export const cacheApiRequest = (fn) => memoize(fn, {
   isPromise: true,
@@ -135,6 +157,7 @@ export const appendTo = (
   // but that requires a round trip to the database (previously done in-memory)
   // and we don't have the need for that right now
   return {
+    id: uuid(),
     op: 'add',
     path: `/${domain}/${value.uuid}`,
     value,
diff --git a/packages/gnarly-core/test/Ourbit.spec.ts b/packages/gnarly-core/test/Ourbit.spec.ts
index ff03918..62b8b32 100644
--- a/packages/gnarly-core/test/Ourbit.spec.ts
+++ b/packages/gnarly-core/test/Ourbit.spec.ts
@@ -46,13 +46,14 @@ describe('Ourbit', () => {
     ])
 
     tx = {
-      id: '0x1',
+      id: TEST_UUID,
       blockHash: '0x1',
       blockNumber: '0x0',
       patches: [{
         id: TEST_UUID,
         reason: undefined,
         operations: [{
+          id: TEST_UUID,
           op: 'add',
           path: '/key',
           value: 'value',
@@ -100,6 +101,7 @@ describe('Ourbit', () => {
       id: TEST_UUID,
       reason: undefined,
       operations: [{
+        id: TEST_UUID,
         op: 'replace',
         path: '/key',
         oldValue: 'value',
@@ -126,6 +128,7 @@ describe('Ourbit', () => {
       id: TEST_UUID,
       reason: undefined,
       operations: [{
+        id: TEST_UUID,
         op: 'add',
         path: `/domain/${TEST_UUID}`,
         value: { uuid: TEST_UUID, value: 'value' },
@@ -156,7 +159,7 @@ describe('Ourbit', () => {
     await ourbit.rollbackTransaction('0x2')
     targetState.should.deep.equal({ key: 'value' })
 
-    await ourbit.rollbackTransaction(tx.id)
+    await ourbit.rollbackTransaction('0x1')
     targetState.should.deep.equal({})
   })
 
@@ -167,7 +170,7 @@ describe('Ourbit', () => {
     // new state, same store
     const newOurbit = new Ourbit(TEST_KEY, newState, persistPatch, context)
 
-    await newOurbit.resumeFromTxId('0x1')
+    await newOurbit.resumeFromTxId(tx.id)
     newState.should.deep.equal({ key: 'value' })
   })
 })
diff --git a/packages/gnarly-core/test/factories/IOperationFactory.ts b/packages/gnarly-core/test/factories/IOperationFactory.ts
new file mode 100644
index 0000000..31f92ef
--- /dev/null
+++ b/packages/gnarly-core/test/factories/IOperationFactory.ts
@@ -0,0 +1,12 @@
+import { Factory } from 'rosie'
+import { uuid } from '../../src/utils'
+
+export default new Factory()
+  .attrs({
+    id: () => uuid(),
+    path: '',
+    op: '',
+    // value: undefined,
+    // oldValue: undefined,
+    volatile: false,
+  })
diff --git a/packages/gnarly-core/test/factories/IPatchFactory.ts b/packages/gnarly-core/test/factories/IPatchFactory.ts
new file mode 100644
index 0000000..2819960
--- /dev/null
+++ b/packages/gnarly-core/test/factories/IPatchFactory.ts
@@ -0,0 +1,9 @@
+import { Factory } from 'rosie'
+import { uuid } from '../../src/utils'
+
+export default new Factory()
+  .attrs({
+    id: () => uuid(),
+    // reason:
+    operations: [],
+  })
diff --git a/packages/gnarly-core/test/factories/ITransactionFactory.ts b/packages/gnarly-core/test/factories/ITransactionFactory.ts
new file mode 100644
index 0000000..3db0dfd
--- /dev/null
+++ b/packages/gnarly-core/test/factories/ITransactionFactory.ts
@@ -0,0 +1,10 @@
+import { Factory } from 'rosie'
+import { uuid } from '../../src/utils'
+
+export default new Factory()
+  .attrs({
+    id: () => uuid(),
+    patches: [],
+    blockHash: '',
+    blockNumber: '',
+  })
diff --git a/packages/gnarly-core/test/mocks/MockStore.ts b/packages/gnarly-core/test/mocks/MockStore.ts
index f2fdb34..a4f1642 100644
--- a/packages/gnarly-core/test/mocks/MockStore.ts
+++ b/packages/gnarly-core/test/mocks/MockStore.ts
@@ -15,9 +15,9 @@ async function* iter (
 
 export default class MockStore implements IStore {
 
-  private reducers: any[] = []
-  private transactions: ITransaction[] = []
-  private historicalBlocks: { [_: string]: IJSONBlock[] } = {}
+  public reducers: any[] = []
+  public transactions: ITransaction[] = []
+  public historicalBlocks: { [_: string]: IJSONBlock[] } = {}
 
   public setup = async (reset: boolean = false) => {
     // nothing to be done
@@ -88,6 +88,7 @@ export default class MockStore implements IStore {
   }
 
   public async getTransaction (reducerKey: string, txId: string): Promise<ITransaction> {
+    console.log(txId)
     return find(this.transactions, (t) => t.id === txId)
   }
 
diff --git a/packages/gnarly-core/test/stores/Store.behavior.ts b/packages/gnarly-core/test/stores/Store.behavior.ts
index 7384f4f..0319278 100644
--- a/packages/gnarly-core/test/stores/Store.behavior.ts
+++ b/packages/gnarly-core/test/stores/Store.behavior.ts
@@ -2,15 +2,28 @@ import chai = require('chai')
 import { pickBy } from 'lodash'
 import 'mocha'
 
-chai
+const should = chai
   .use(require('chai-spies'))
+  .use(require('chai-as-promised'))
   .should()
 
-import { forEach } from '../../src/utils'
-
-import { IStore } from '../../src/stores'
+import { ITransaction } from '../../src/ourbit'
+import { forEach, uuid } from '../../src/utils'
+import IPatchFactory from '../factories/IPatchFactory'
+import IOperationFactory from '../factories/IPatchFactory'
+import ITransactionFactory from '../factories/ITransactionFactory'
 import { buildChain, genesis } from '../utils'
 
+const flattenIterable = async (iter) => {
+  const memo = []
+  for await (const batch of iter) {
+    for (const thing of batch) {
+      memo.push(thing)
+    }
+  }
+  return memo
+}
+
 const MOCK_REDUCER_KEY = 'test'
 const MOCK_RETENTION = 100
 
@@ -27,38 +40,59 @@ const blocksShouldEqual = (as, bs) => as.map(onlyKeys(historialBlockKeys))
     bs.map(onlyKeys(historialBlockKeys)),
   )
 
-const shouldBehaveAsStore = (store: IStore) => {
-  const saveAllHistoricalBlocks = async (blocks) => forEach(blocks, (block) =>
-    store.saveHistoricalBlock(MOCK_REDUCER_KEY, MOCK_RETENTION, block),
-  )
+const transactionKeys = ['id', 'patches', 'blockNumber', 'blockHash']
+const patchKeys = ['id', 'operations']
+const operationKeys = ['id', 'path', 'op', 'value', 'oldValue', 'volatile']
+
+const transactionsWithValidKeys = (txs) => txs
+  .map(onlyKeys(transactionKeys))
+  .map((tx) => ({
+    ...tx,
+    patches: tx.patches
+      .map(onlyKeys(patchKeys))
+      .map((patch) => ({
+        ...patch,
+        operations: patch.operations.map(onlyKeys(operationKeys)),
+      })),
+  }))
+
+const transactionsShouldEqual = (as, bs) => transactionsWithValidKeys(as)
+  .should.deep.equal(transactionsWithValidKeys(bs))
+
+const shouldBehaveAsStore = function () {
+  const saveAllHistoricalBlocks = async function (store, blocks)  {
+    return forEach(blocks, (block) =>
+      store.saveHistoricalBlock(MOCK_REDUCER_KEY, MOCK_RETENTION, block),
+    )
+  }
 
   beforeEach(async function () {
     // implicitly tests setup and setdown
-    await store.setdown()
-    await store.setup()
+    await this.store.setdown()
+    await this.store.setup()
   })
 
   context('reducers', function () {
     describe('saveReducer', function () {
       it('should save reducer information', async function () {
-        await store.saveReducer(MOCK_REDUCER_KEY)
+        await this.store.saveReducer(MOCK_REDUCER_KEY)
       })
     })
 
     describe('deleteReducer', function () {
       it('should delete reducer information', async function () {
-        await store.saveReducer(MOCK_REDUCER_KEY)
-        await store.deleteReducer(MOCK_REDUCER_KEY)
+        await this.store.saveReducer(MOCK_REDUCER_KEY)
+        await this.store.deleteReducer(MOCK_REDUCER_KEY)
       })
     })
   })
 
   context('with reducer', function () {
     beforeEach(async function () {
-      await store.saveReducer(MOCK_REDUCER_KEY)
+      await this.store.saveReducer(MOCK_REDUCER_KEY)
     })
     afterEach(async function () {
-      await store.deleteReducer(MOCK_REDUCER_KEY)
+      await this.store.deleteReducer(MOCK_REDUCER_KEY)
     })
 
     context('historical blocks', function () {
@@ -69,21 +103,21 @@ const shouldBehaveAsStore = (store: IStore) => {
         })
 
         it('should return empty array if no historical blocks', async function () {
-          const blocks = await store.getHistoricalBlocks(MOCK_REDUCER_KEY)
+          const blocks = await this.store.getHistoricalBlocks(MOCK_REDUCER_KEY)
           blocks.length.should.equal(0)
         })
 
         it('should save one historical block', async function () {
-          await store.saveHistoricalBlock(MOCK_REDUCER_KEY, MOCK_RETENTION, this.lastBlock)
-          const blocks = await store.getHistoricalBlocks(MOCK_REDUCER_KEY)
+          await this.store.saveHistoricalBlock(MOCK_REDUCER_KEY, MOCK_RETENTION, this.lastBlock)
+          const blocks = await this.store.getHistoricalBlocks(MOCK_REDUCER_KEY)
           blocks.length.should.equal(1)
           blocksShouldEqual(blocks, [this.lastBlock])
         })
 
         it('should save many historical blocks', async function () {
-          await saveAllHistoricalBlocks(this.historicalBlocks)
+          await saveAllHistoricalBlocks(this.store, this.historicalBlocks)
 
-          const blocks = await store.getHistoricalBlocks(MOCK_REDUCER_KEY)
+          const blocks = await this.store.getHistoricalBlocks(MOCK_REDUCER_KEY)
           blocks.length.should.equal(this.historicalBlocks.length)
           blocksShouldEqual(blocks, this.historicalBlocks)
         })
@@ -93,12 +127,12 @@ const shouldBehaveAsStore = (store: IStore) => {
         beforeEach(async function () {
           this.historicalBlocks = buildChain(genesis(), 8)
           this.lastBlock = this.historicalBlocks[this.historicalBlocks.length - 1]
-          await saveAllHistoricalBlocks(this.historicalBlocks)
+          await saveAllHistoricalBlocks(this.store, this.historicalBlocks)
         })
 
         it('should delete a single historical block', async function () {
-          await store.deleteHistoricalBlock(MOCK_REDUCER_KEY, this.lastBlock.hash)
-          const blocks = await store.getHistoricalBlocks(MOCK_REDUCER_KEY)
+          await this.store.deleteHistoricalBlock(MOCK_REDUCER_KEY, this.lastBlock.hash)
+          const blocks = await this.store.getHistoricalBlocks(MOCK_REDUCER_KEY)
           blocksShouldEqual(blocks, this.historicalBlocks.slice(0, -1))
         })
       })
@@ -106,12 +140,12 @@ const shouldBehaveAsStore = (store: IStore) => {
       describe('deleteHistoricalBlocks', function () {
         beforeEach(async function () {
           this.historicalBlocks = buildChain(genesis(), 8)
-          await saveAllHistoricalBlocks(this.historicalBlocks)
+          await saveAllHistoricalBlocks(this.store, this.historicalBlocks)
         })
 
         it('should delete all historical blocks', async function () {
-          await store.deleteHistoricalBlocks(MOCK_REDUCER_KEY)
-          const blocks = await store.getHistoricalBlocks(MOCK_REDUCER_KEY)
+          await this.store.deleteHistoricalBlocks(MOCK_REDUCER_KEY)
+          const blocks = await this.store.getHistoricalBlocks(MOCK_REDUCER_KEY)
           blocks.length.should.equal(0)
         })
       })
@@ -123,8 +157,8 @@ const shouldBehaveAsStore = (store: IStore) => {
           })
 
           it('should still have the same number of blocks', async function () {
-            await saveAllHistoricalBlocks(this.historicalBlocks)
-            const blocks = await store.getHistoricalBlocks(MOCK_REDUCER_KEY)
+            await saveAllHistoricalBlocks(this.store, this.historicalBlocks)
+            const blocks = await this.store.getHistoricalBlocks(MOCK_REDUCER_KEY)
             blocks.length.should.equal(this.historicalBlocks.length)
           })
         })
@@ -135,8 +169,8 @@ const shouldBehaveAsStore = (store: IStore) => {
           })
 
           it('should delete historical blocks beyond retention', async function () {
-            await saveAllHistoricalBlocks(this.historicalBlocks)
-            const blocks = await store.getHistoricalBlocks(MOCK_REDUCER_KEY)
+            await saveAllHistoricalBlocks(this.store, this.historicalBlocks)
+            const blocks = await this.store.getHistoricalBlocks(MOCK_REDUCER_KEY)
             blocks.length.should.equal(MOCK_RETENTION)
 
             blocksShouldEqual(blocks, this.historicalBlocks.slice(-1 * MOCK_RETENTION))
@@ -148,40 +182,112 @@ const shouldBehaveAsStore = (store: IStore) => {
           const base = buildChain(genesis(), 6)
           const fork1 = buildChain(base, 2)
           const fork2 = buildChain(base, MOCK_RETENTION)
-          await saveAllHistoricalBlocks(fork1)
+          await saveAllHistoricalBlocks(this.store, fork1)
 
           // should be fork1
-          blocksShouldEqual(await store.getHistoricalBlocks(MOCK_REDUCER_KEY), fork1)
+          blocksShouldEqual(await this.store.getHistoricalBlocks(MOCK_REDUCER_KEY), fork1)
 
           // delete extra fork1 blocks
-          await forEach(fork1.slice(-2), (block) => store.deleteHistoricalBlock(MOCK_REDUCER_KEY, block.hash))
+          await forEach(fork1.slice(-2), (block) => this.store.deleteHistoricalBlock(MOCK_REDUCER_KEY, block.hash))
 
           // should be base
-          blocksShouldEqual(await store.getHistoricalBlocks(MOCK_REDUCER_KEY), base)
+          blocksShouldEqual(await this.store.getHistoricalBlocks(MOCK_REDUCER_KEY), base)
 
           // add fork2 blocks which goes above retention
-          await saveAllHistoricalBlocks(fork2.slice(-1 * MOCK_RETENTION))
+          await saveAllHistoricalBlocks(this.store, fork2.slice(-1 * MOCK_RETENTION))
 
           // should be last retention blocks of fork2
-          blocksShouldEqual(await store.getHistoricalBlocks(MOCK_REDUCER_KEY), fork2.slice(-1 * MOCK_RETENTION))
+          blocksShouldEqual(await this.store.getHistoricalBlocks(MOCK_REDUCER_KEY), fork2.slice(-1 * MOCK_RETENTION))
 
           // nuke all of them
-          await store.deleteHistoricalBlocks(MOCK_REDUCER_KEY)
+          await this.store.deleteHistoricalBlocks(MOCK_REDUCER_KEY)
 
           // should be empty
-          blocksShouldEqual(await store.getHistoricalBlocks(MOCK_REDUCER_KEY), [])
+          blocksShouldEqual(await this.store.getHistoricalBlocks(MOCK_REDUCER_KEY), [])
         })
       })
     })
 
     context('transactions', function () {
       describe('getAllTransactionsTo', function () {
-        it('should throw error when given unknown txId')
-        it('should return an AsyncIteratorable set of tx batches')
-        it('should return all transactions up to an existing txId (inclusive) ordered correctly')
-        it('should include patches ordered correctly')
-        it('should not include volatile operations')
-        it('should include operations ordered correctly')
+        it('should throw error when given undefined txId', async function () {
+          await this.store.getAllTransactionsTo(MOCK_REDUCER_KEY, undefined).should.be.rejectedWith(Error)
+        })
+
+        it('should throw error when given null txId', async function () {
+          await this.store.getAllTransactionsTo(MOCK_REDUCER_KEY, null).should.be.rejectedWith(Error)
+        })
+
+        it('should throw error when given unknown txId', async function () {
+          await this.store.getAllTransactionsTo(MOCK_REDUCER_KEY, 'fake').should.be.rejectedWith(Error)
+        })
+
+        context('with valid transactions', function () {
+          beforeEach(async function () {
+            this.mockTransactions = [
+              ITransactionFactory.build({
+                patches: [
+                  IPatchFactory.build({
+                    operations: [IOperationFactory.build({
+                      path: '/test',
+                      op: 'add',
+                      value: 'test',
+                      oldValue: null,
+                      volatile: false,
+                    })],
+                  }),
+                  IPatchFactory.build({
+                    operations: [IOperationFactory.build({
+                      path: '/test-2',
+                      op: 'add',
+                      value: 'test',
+                      oldValue: null,
+                      volatile: false,
+                    })],
+                  }),
+                ],
+                blockNumber: '0x1',
+                blockHash: '0x1',
+              }),
+              ITransactionFactory.build({
+                patches: [IPatchFactory.build({
+                  operations: [IOperationFactory.build({
+                    path: '/test',
+                    op: 'update',
+                    value: 'new',
+                    oldValue: 'test',
+                    volatile: false,
+                  })],
+                })],
+                blockNumber: '0x2',
+                blockHash: '0x2',
+              }),
+            ]
+
+            for (const tx of this.mockTransactions) {
+              await this.store.saveTransaction(MOCK_REDUCER_KEY, tx)
+            }
+
+            this.lastTxId = this.mockTransactions[this.mockTransactions.length - 1].id
+          })
+
+          it('should return an AsyncIteratorable', async function () {
+            const iter = await this.store.getAllTransactionsTo(MOCK_REDUCER_KEY, this.lastTxId)
+
+            should.exist(iter[(Symbol as any).asyncIterator])
+          })
+
+          it('should return all transactions up to an existing txId (inclusive) ordered correctly', async function () {
+            const txs = await flattenIterable(await this.store.getAllTransactionsTo(MOCK_REDUCER_KEY, this.lastTxId))
+
+            should.exist(txs)
+            txs.length.should.equal(this.mockTransactions.length)
+            transactionsShouldEqual(txs, this.mockTransactions)
+          })
+
+          it('should not include volatile operations')
+          it('should include operations ordered correctly')
+        })
       })
 
       describe('getLatestTransaction', function () {
diff --git a/packages/gnarly-core/test/stores/Stores.spec.ts b/packages/gnarly-core/test/stores/Stores.spec.ts
index ab065e6..b749c13 100644
--- a/packages/gnarly-core/test/stores/Stores.spec.ts
+++ b/packages/gnarly-core/test/stores/Stores.spec.ts
@@ -4,45 +4,46 @@ import Sequelize = require('sequelize')
 import { PouchDBStore, SequelizeStore } from '../../src/stores'
 import { timeout } from '../../src/utils'
 
-import Store from './Store.behavior'
+import shouldBehaveAsStore from './Store.behavior'
 
 describe('All Stores', function () {
-  const pouchDBServerStore = new PouchDBStore('http://127.0.0.1:5985')
-  // const defaultPouchStore = new PouchDBStore('http://127.0.0.1:5984')
-
-  // don't forget to `create database travis_ci_test;` on your local postgres!
-  const sequelize = new Sequelize('postgres://postgres@127.0.0.1:5432/travis_ci_test', {
-    logging: false,
-  })
-  const sequelizeStore = new SequelizeStore(Sequelize, sequelize)
 
   describe('PouchDB Store (pouchdb-server)', function () {
     this.timeout(22000)
+
     before(async function () {
       this.child = exec('pouchdb-server -p 5985 -m')
       this.child.on('error', (error) => {
         console.log(`child error:\n${error}`)
       })
       await timeout(1000)
+      this.store = new PouchDBStore('http://127.0.0.1:5985')
     })
 
     after(async function () {
       await this.child.kill()
     })
 
-    Store(pouchDBServerStore)
+    shouldBehaveAsStore()
   })
 
   // @TODO - couchdb is not api-compatible with pouchdb-server it seems
-  // describe('PouchDB Store (default)', function () {
-  //   this.timeout(12000)
-  //   // assumes pouchdb-server/CouchDB available on default port
-  //   Store(defaultPouchStore)
-  // })
 
   describe('Sequelize Store (Postgres)', function () {
-    this.timeout(2000)
+
+    before(async function () {
+      // don't forget to `create database travis_ci_test;` on your local postgres!
+      const sequelize = new Sequelize('postgres://postgres@127.0.0.1:5432/travis_ci_test', {
+        logging: false,
+      })
+      this.store = new SequelizeStore(Sequelize, sequelize)
+    })
+
+    after(async function () {
+      // set down
+    })
+
     // assumes postgres is running locally on default port
-    Store(sequelizeStore)
+    shouldBehaveAsStore()
   })
 })
diff --git a/yarn.lock b/yarn.lock
index 7345b81..9795d81 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1622,6 +1622,12 @@ center-align@^0.1.1:
     align-text "^0.1.3"
     lazy-cache "^1.0.3"
 
+chai-as-promised@^7.1.1:
+  version "7.1.1"
+  resolved "https://registry.yarnpkg.com/chai-as-promised/-/chai-as-promised-7.1.1.tgz#08645d825deb8696ee61725dbf590c012eb00ca0"
+  dependencies:
+    check-error "^1.0.2"
+
 chai-spies@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/chai-spies/-/chai-spies-1.0.0.tgz#d16b39336fb316d03abf8c375feb23c0c8bb163d"
@@ -1677,7 +1683,7 @@ chardet@^0.4.0:
   version "0.4.2"
   resolved "https://registry.yarnpkg.com/chardet/-/chardet-0.4.2.tgz#b5473b33dc97c424e5d98dc87d55d4d8a29c8bf2"
 
-check-error@^1.0.1:
+check-error@^1.0.1, check-error@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/check-error/-/check-error-1.0.2.tgz#574d312edd88bb5dd8912e9286dd6c0aed4aac82"
 
@@ -2188,6 +2194,10 @@ crypto-random-string@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/crypto-random-string/-/crypto-random-string-1.0.0.tgz#a230f64f568310e1498009940790ec99545bca7e"
 
+crypto@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/crypto/-/crypto-1.0.1.tgz#2af1b7cad8175d24c8a1b0778255794a21803037"
+
 cssom@0.3.x, "cssom@>= 0.3.2 < 0.4.0":
   version "0.3.4"
   resolved "https://registry.yarnpkg.com/cssom/-/cssom-0.3.4.tgz#8cd52e8a3acfd68d3aed38ee0a640177d2f9d797"