Heroku, SendGrid and NodeJS

Thursday, Jan 5, 2012 2 minute read Tags: nodejs heroku
Hey, thanks for the interest in this post, but just letting you know that it is over 3 years old, so the content in here may not be accurate.

Last night I launched the registration site for Stats It, and Umbraco 5 add-on I’m working on and I wanted to get the site out quickly and well… cheaply so I decided that I’d just do a 1 page site in NodeJS.

For hosting I wanted to go with Heroku as I just love how simply I can get a site from my local machine to deployed with the platform and I also love how many add-ons there are available.

To send emails there’s a couple of choices, I decided to go with SendGrid for no reason other than they were the first that I saw :P.

So install SendGrid into your heroku app (I’m using the free version):

heroku addons:add sendgrid:starter

And now you need something to send emails from NodeJS, for this I’ve gone with node_mailer as it was the first in my search results and it’s got a dead simple API. What’s really cool about Heroku is that when you have add-ons such as SendGrid installed you get the config options injected, meaning sending an email is as simple as this:

var email = require('mailer');

	host: 'smtp.sendgrid.net',
	port: '587',
	authentication: 'plain',
	username: process.env.SENDGRID_USERNAME,
	password: process.env.SENDGRID_PASSWORD,
	domain: 'heroku.com',
	to: 'someone@somewhere.com',
	from: 'someone@somewhere-else.com',
	subject: 'You sent an email',
	body: 'Hey look at that!'
}, function (err, result) {
	//Do your error handling

You have to hard-code these settings:

  • host: 'smtp.sendgrid.net'
  • port: '587'
  • authentication: 'plain'

But Heroku will inject the username & password for you, both of which will be on the process.env object, like so:

  • process.env.SENDGRID_USERNAME
  • process.env.SENDGRID_PASSWORD

And there you have it, you’re not ready to send emails from NodeJS on Heroku.