Added sendgrid example app. Also used for Compute Engine snippet.

.gitignore

@@ -3,4 +3,7 @@ npm-debug.log
 coverage/
 
 test/encrypted/nodejs-docs-samples.json
-dump.rdb
+dump.rdb
+logs/
+*.iml
+.idea/

README.md

@@ -33,6 +33,7 @@ and applications on [Google App Engine](http://cloud.google.com/nodejs).
 - Bower - [Source code][bower_1] | [App Engine Tutorial][bower_2] | [Documentation][bower_3]
 - Grunt - [Source code][grunt_1] | [App Engine Tutorial][grunt_2] | [Live demo][grunt_3] | [Documentation][grunt_4]
 - Mailgun - [Source code][mailgun_1] | [App Engine Tutorial][mailgun_2] | [Documentation][mailgun_3]
+- Sendgrid - [Source code][sendgrid_1] | [App Engine Tutorial][sendgrid_2] | [Documentation][sendgrid_3]
 - Webpack - [Source code][webpack_1] | [App Engine Tutorial][webpack_2] | [Documentation][webpack_3]
 
 ## Google Storage
@@ -134,6 +135,10 @@ See [LICENSE](https://github.com/GoogleCloudPlatform/nodejs-docs-samples/blob/ma
 [mailgun_2]: https://cloud.google.com/nodejs/resources/tools/mailgun
 [mailgun_3]: http://www.mailgun.com/
 
+[sendgrid_1]: https://github.com/GoogleCloudPlatform/nodejs-docs-samples/blob/master/appengine/sendgrid
+[sendgrid_2]: https://cloud.google.com/nodejs/resources/tools/sendgrid
+[sendgrid_3]: http://sendgrid.com/
+
 [webpack_1]: https://github.com/GoogleCloudPlatform/nodejs-docs-samples/blob/master/appengine/webpack
 [webpack_2]: https://cloud.google.com/nodejs/resources/tools/webpack
 [webpack_3]: https://webpack.github.io/

appengine/sendgrid/README.md

@@ -0,0 +1,20 @@
+## Express.js + Sendgrid on Google App Engine
+
+> [Sendgrid][1]: Delivering your transactional and marketing email through one reliable platform.
+>
+> – sendgrid.com
+
+This sample application demonstrates how to use [Express.js][2] and
+[sendgrid-nodejs][3] to send transactional email on [Google App Engine][4].
+
+Read the [Sendgrid on App Engine Tutorial][5] for how to run and deploy this
+sample app.
+
+You can also read the [Sendgrid documentation][6].
+
+[1]: https://sendgrid.com/
+[2]: http://expressjs.com
+[3]: https://github.com/sendgrid/sendgrid-nodejs
+[4]: https://cloud.google.com/appengine
+[5]: https://cloud.google.com/nodejs/resources/tools/sendgrid
+[6]: https://sendgrid.com/docs

appengine/sendgrid/app.js

@@ -0,0 +1,92 @@
+// Copyright 2015, 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.
+
+'use strict';
+
+var express = require('express');
+var path = require('path');
+var bodyParser = require('body-parser');
+
+// [START setup]
+var Sendgrid = require('sendgrid')(process.env.SENDGRID_API_KEY);
+// [END setup]
+
+var app = express();
+
+// Setup view engine
+app.set('views', path.join(__dirname, 'views'));
+app.set('view engine', 'jade');
+
+// Parse form data
+app.use(bodyParser.json());
+app.use(bodyParser.urlencoded({ extended: false }));
+
+// [START index]
+app.get('/', function(req, res) {
+  res.render('index');
+});
+// [END index]
+
+// [START hello]
+app.post('/hello', function(req, res, next) {
+  Sendgrid.send({
+    from: '[email protected]', // From address
+    to: req.body.email, // To address
+    subject: 'Hello World!', // Subject
+    text: 'Sendgrid on Google App Engine with Node.js' // Content
+  }, function (err, json) {
+    if (err) {
+      return next(err);
+    } else {
+      // Render the index route on success
+      return res.render('index', {
+        sent: true
+      });
+    }
+  });
+});
+// [END hello]
+
+if (module === require.main) {
+  // [START server]
+  var server = app.listen(
+    process.env.PORT || 8080,
+    '0.0.0.0',
+    function () {
+      var address = server.address().address;
+      var port = server.address().port;
+      console.log('App listening at http://%s:%s', address, port);
+      console.log('Press Ctrl+C to quit.');
+    }
+  );
+  // [END server]
+} else {
+  modules.exports = function send() {
+    // [START send]
+    Sendgrid.send({
+      from: 'ANOTHER_EMAIL@ANOTHER_EXAMPLE.COM', // From address
+      to: '[email protected]', // To address
+      subject: 'test email from Node.js on a Compute Engine VM', // Subject
+      text: 'Hello!\n\nThis a test email from Node.js on a VM.' // Content
+    }, function (err, json) {
+      if (err) {
+        console.error(err);
+      } else {
+        console.log(json);
+      }
+    });
+    // [END send]
+  };
+}
+
+

appengine/sendgrid/app.yaml

@@ -0,0 +1,21 @@
+# Copyright 2015, 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
+env_variables:
+  SENDGRID_API_KEY: <your-sendgrid-api-key>
+# [END app_yaml]
+skip_files:
+  - ^(.*/)?.*/node_modules/.*$

appengine/sendgrid/package.json

@@ -0,0 +1,20 @@
+{
+  "name": "appengine-sendgrid",
+  "description": "An example of using Sendgrid in Node.js on Google App Engine.",
+  "version": "0.0.1",
+  "private": true,
+  "license": "Apache Version 2.0",
+  "engines": {
+    "node": "~4.2"
+  },
+  "scripts": {
+    "start": "node app.js",
+    "deploy": "gcloud preview app deploy app.yaml"
+  },
+  "dependencies": {
+    "body-parser": "^1.14.1",
+    "express": "^4.13.3",
+    "jade": "^1.11.0",
+    "sendgrid": "^2.0.0"
+  }
+}

appengine/sendgrid/views/index.jade

@@ -0,0 +1,27 @@
+// Copyright 2015, 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.
+
+doctype html
+html
+  head
+    title= title
+  body
+    h1 Hello World!
+    p Express.js + Sendgrid on Google App Engine.
+    hr
+    if sent
+      p Email sent!
+    else
+      form(name="hello", action="/hello", method="post")
+        input(type="email", placeholder="Enter your email to send yourself a Hello World message", name="email", style="width: 50%; margin-right: 15px;")
+        input(type="submit", value="Send")

test/appengine/all.test.js

@@ -99,6 +99,12 @@ var sampleTests = [
     args: ['server.js'],
     msg: 'Hello World! Restify.js on Google App Engine.'
   },
+  {
+    dir: 'sendgrid',
+    cmd: 'node',
+    args: ['app.js'],
+    msg: 'Express.js + Sendgrid on Google App Engine.'
+  },
   {
     dir: 'webpack',
     cmd: 'node',