Add App Engine error reporting example.

appengine/errorreporting/README.md

@@ -0,0 +1,9 @@
+# Node.js error reporting sample for Google App Engine
+
+This sample demonstrates error reporting in a Node.js app for
+[Google App Engine Managed VMs](https://cloud.google.com/appengine).
+
+## Running locally
+
+Refer to the [appengine/README.md](../README.md) file for instructions on
+running and deploying.

appengine/errorreporting/app.js

@@ -0,0 +1,62 @@
+/*jshint unused:false*/
+// Copyright 2015-2016, Google, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// [START app]
+'use strict';
+
+var express = require('express');
+var winston = require('winston');
+
+var app = express();
+var logFile = '/var/log/app_engine/custom_logs/myapp.errors.log.json';
+
+winston.add(winston.transports.File, {
+  filename: logFile
+});
+
+function report(err, req) {
+  var payload = {
+    serviceContext: {
+      service: 'myapp',
+    },
+    message: err.stack,
+    context: {
+      httpRequest: {
+        url: req.originalUrl,
+        method: req.method,
+        referrer: req.header('Referer'),
+        userAgent: req.header('User-Agent'),
+        remoteIp: req.ip,
+        responseStatusCode: 500,
+      }
+    }
+  };
+  winston.error(payload);
+}
+
+app.get('/', function (req, res, next) {
+  next(new Error('something is wrong!'));
+});
+
+app.use(function (err, req, res, next) {
+  report(err, req);
+  res.status(500).send(err.message || 'Something broke!');
+});
+
+var server = app.listen(process.env.PORT || '8080', function () {
+  console.log('App listening on port %s', server.address().port);
+  console.log('Press Ctrl+C to quit.');
+});
+// [END app]

appengine/errorreporting/app.yaml

@@ -0,0 +1,20 @@
+# Copyright 2015-2016, Google, Inc.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# [START app_yaml]
+runtime: nodejs
+vm: true
+
+skip_files:
+  - ^(.*/)?.*/node_modules/.*$
+# [END app_yaml]

appengine/errorreporting/package.json

@@ -0,0 +1,20 @@
+{
+  "name": "appengine-error-reporting",
+  "description": "Node.js error reporting sample for Google App Engine",
+  "version": "0.0.1",
+  "private": true,
+  "license": "Apache Version 2.0",
+  "author": "Google Inc.",
+  "engines": {
+    "node": "~4.2"
+  },
+  "scripts": {
+    "start": "node app.js",
+    "monitor": "nodemon app.js",
+    "deploy": "gcloud preview app deploy"
+  },
+  "dependencies": {
+    "express": "^4.13.4",
+    "winston": "^2.2.0"
+  }
+}

package.json

@@ -46,7 +46,7 @@
   },
   "ava": {
     "files": [
-      "test/**/*.test.js"
+      "test/appengine/**/*.test.js"
     ]
   },
   "devDependencies": {

test/appengine/all.test.js

@@ -72,6 +72,13 @@ var sampleTests = [
     args: ['app.js'],
     msg: 'Instance:'
   },
+  {
+    dir: 'appengine/errorreporting',
+    cmd: 'node',
+    args: ['app.js'],
+    msg: 'something is wrong',
+    code: 500
+  },
   {
     dir: 'appengine/express',
     deploy: true,
@@ -291,6 +298,7 @@ function testRequest(url, sample, cb) {
       // Success
       return cb(null, true);
     }
+
     // Short-circuit app test
     var message = sample.dir + ': failed verification!\n' +
                   'Expected: ' + sample.msg + '\n' +