From f87b673a2959b8d05703c2c83c89d32fe38d2e75 Mon Sep 17 00:00:00 2001
From: David Aurelio <davidaurelio@fb.com>
Date: Tue, 15 Mar 2016 05:21:55 -0700
Subject: [PATCH] Add possibility to `console.error`/redbox on promise
 rejections

Summary: Adds a possibility to `console.error` / redbox if any promise is rejected.

Differential Revision: D3048130

fb-gh-sync-id: b1a44b421ec3b1f7913226c86b2a48f00f27b105
shipit-source-id: b1a44b421ec3b1f7913226c86b2a48f00f27b105
---
 Libraries/promiseRejectionIsError.js | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 Libraries/promiseRejectionIsError.js

diff --git a/Libraries/promiseRejectionIsError.js b/Libraries/promiseRejectionIsError.js
new file mode 100644
index 00000000000000..7e6bca86f496a6
--- /dev/null
+++ b/Libraries/promiseRejectionIsError.js
@@ -0,0 +1,24 @@
+/**
+ * Copyright (c) 2016-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ *
+ * @providesModule promiseRejectionIsError
+ * @flow
+ */
+
+require('Promise'); // make sure the default rejection handler is installed
+const rejectionTracking = require('promise/setimmediate/rejection-tracking');
+
+module.exports = () => {
+  rejectionTracking.enable({
+    allRejections: true,
+    onUnhandled: (id, error) => {
+      console.error(error);
+    },
+    onHandled: () => {},
+  });
+};