Merge pull request #832 from chain-engineering/master

My first instant answer that displays the balance of a Bitcoin addresses ready to go!

lib/DDG/Spice/BitcoinBalance.pm

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+package DDG::Spice::BitcoinBalance;
+# ABSTRACT: Displays the balance of a Bitcoin address from the Chain.com API.
+
+use DDG::Spice;
+
+primary_example_queries "17x23dNjXJLzGMev6R63uyRhMWP1VHawKc", "1Gn2dRFqouUHvuWPVhriCDtP3qVQc59WHy", "3QJmV3qfvL9SuYo34YihAf3sRCW3qSinyC";
+description "Display the balance of a Bitcoin address";
+name "Bitcoin Address Balance";
+source "http://chain.com";
+code_url "https://github.com/duckduckgo/zeroclickinfo-spice/blob/master/lib/DDG/Spice/BitcoinBalance.pm";
+topics "economy_and_finance";
+category "finance";
+icon_url "https://chain.com/chain32x32.ico";
+
+attribution github => ['https://github.com/chain-engineering','chain.com'],
+            email => ['[email protected]','[email protected]'],
+            twitter => "chain",
+            web => ['https://chain.com','chain.com'];
+
+triggers query_raw => qr/^[13][1-9A-HJ-NP-Za-km-z]{26,33}$/;
+# This regular expression identifies the unique properties of a Bitcoin Address.
+
+spice to => 'https://api.chain.com/v1/bitcoin/addresses/$1?key={{ENV{BITCOIN_BALANCE_SPICE_APIKEY}}}';
+# The Chain API requires an API key. Chain has granted the spice a free account with unlimited access. We can provide this to DuckDuckGo before release.
+
+spice wrap_jsonp_callback => 1;
+
+spice proxy_cache_valid => "418 1d";
+
+handle query_raw => sub {
+    return $_;
+};
+
+1;

share/spice/bitcoin_balance/bitcoin_balance.css

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+.zci--bitcoinbalance .balance-wrapper {
+    overflow: auto;
+    padding-bottom: 6px;
+}
+
+.zci--bitcoinbalance .balance-box {
+    float: left;
+    box-sizing: border-box;
+    -webkit-box-sizing: border-box;
+    -moz-box-sizing: border-box;
+    background-color: #E9E9E9;
+    border-radius:3px;
+    padding: 2% 22px 3% 22px;
+}
+
+.zci--bitcoinbalance .btc-title {
+    position: relative;
+    float: left;
+    top: 18px;
+    box-sizing: border-box;
+    -webkit-box-sizing: border-box;
+    -moz-box-sizing: border-box;
+    padding-right: 40px;
+    font-size: 15px;
+}
+
+.zci--bitcoinbalance .btc-balance {
+    position: relative;
+    float: right;
+    top: 5px;
+    box-sizing: border-box;
+    -webkit-box-sizing: border-box;
+    -moz-box-sizing: border-box;
+    font-size: 35px;
+}
+
+.zci--bitcoinbalance .zci__more-at__icon {
+  padding-right: 0.45em;
+}
+
+@media screen and (max-width: 568px) {
+
+    .zci--bitcoinbalance .zci__body {
+        box-sizing: border-box;
+        -webkit-box-sizing: border-box;
+        -moz-box-sizing: border-box;
+    }
+
+    .zci--bitcoinbalance .balance-wrapper {
+        padding-bottom: 0;
+    }
+
+    .zci--bitcoinbalance .balance-box {
+        width: 100%;
+        padding: 2% 5% 3% 5%;
+    }
+}
+
+@media screen and (max-width: 480px) {
+    .zci--bitcoinbalance .btc-title {
+       top: 5px;
+    }
+
+    .zci--bitcoinbalance .btc-balance {
+        top: 3px;
+        font-size: 20px;
+    }
+}

share/spice/bitcoin_balance/bitcoin_balance.js

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+(function (env) {
+    "use strict";
+    env.ddg_spice_bitcoin_balance = function(api_result){
+
+        if (!api_result || api_result.error) {
+            return Spice.failed('bitcoin_balance');
+        }
+
+        Spice.add({
+            id: "bitcoinBalance",
+            name: "Bitcoin Address",
+            data: {
+                balance: api_result.balance / 100000000.0
+                //The balance field on the API returns satoshis, so we divide by 100000000 to convert to BTC.
+            },
+            meta: {
+                sourceName: "Chain.com",
+                sourceUrl: "https://chain.com/bitcoin/addresses/" + api_result.hash
+            },
+            templates: {
+                group: 'info',
+                options:{
+                    content: Spice.bitcoin_balance.content,
+                    moreAt: true
+                }
+            }
+        });
+    };
+}(this));

share/spice/bitcoin_balance/content.handlebars

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+<div class="clearfix balance-wrapper">
+    <span class="balance-box">
+      <span class="btc-title">BALANCE</span>
+      <span class="btc-balance">{{balance}} BTC</span>
+    </span>
+</div>

t/BitcoinBalance.t

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+#!/usr/bin/env perl
+
+use strict;
+use warnings;
+use Test::More;
+use DDG::Test::Spice;
+
+ddg_spice_test(
+    [qw( DDG::Spice::BitcoinBalance )],
+    '17x23dNjXJLzGMev6R63uyRhMWP1VHawKc' => test_spice(
+        '/js/spice/bitcoin_balance/17x23dNjXJLzGMev6R63uyRhMWP1VHawKc',
+        call_type => 'include',
+        caller => 'DDG::Spice::BitcoinBalance',
+        proxy_cache_valid => "418 1d", 
+    ),
+    '17x23dNjXJLzGMev6R63uyRhMWP1VHawKc 1Gn2dRFqouUHvuWPVhriCDtP3qVQc59WHy' => undef,
+    'hello 1Gn2dRFqouUHvuWPVhriCDtP3qVQc59WHy' => undef
+);
+
+done_testing;