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Event Webhook Node.js Code Example

Parse Webhook

In this example, we want to parse all emails at address@email.sendgrid.biz and post the parsed email to http://sendgrid.biz/parse. We will be using Node and the Express framework.

Given this scenario, the following are the parameters you would set at the Parse API settings page:

Hostname: email.sendgrid.biz

URL: http://sendgrid.biz/parse

To test this scenario, we sent an email to example@example.com and created the following code:

1
2var express = require('express');
3var multer  = require('multer');
4var app = express();
5
6app.configure(function(){
7  app.set('port', process.env.PORT || 3000);
8  app.use(multer());
9});
10
11app.post('/parse', function (req, res) {
12  var from = req.body.from;
13  var text = req.body.text;
14  var subject = req.body.subject;
15  var num_attachments = req.body.attachments;
16  for (i = 1; i <= num_attachments; i++){
17    var attachment = req.files['attachment' + i];
18    // attachment will be a File object
19  }
20});
21
22var server = app.listen(app.get('port'), function() {
23  console.log('Listening on port %d', server.address().port);
24});

Event Webhook

To use the Event Webhook, you must first setup Event Notification.

In this scenario, we assume you've set the Event Notification URL to go the endpoint /event on your server. Given this scenario the following code will allow you to process events:

1
2var express = require('express');
3var app = express();
4
5app.configure(function(){
6  app.set('port', process.env.PORT || 3000);
7  app.use(express.bodyParser());
8});
9
10app.post('/event', function (req, res) {
11  var events = req.body;
12  events.forEach(function (event) {
13    // Here, you now have each event and can process them how you like
14      processEvent(event);
15  });
16});
17
18var server = app.listen(app.get('port'), function() {
19  console.log('Listening on port %d', server.address().port);
20});