Sending e-mails with NodeJS is almost a breeze. Almost. First, you have to plug-in the NodeMailer module than set up a transport type, load the templates, add attachments and finally send...
The Code
The first thing you tend to do is to create a wrapper class to manage all this tasks. So, I wrapped it in an Eamiler class to centralize the mail sending in my app.In a standard ExpressJS project structure you'll store this file in# /lib/emailer.coffee
emailer = require("nodemailer") fs = require("fs") _ = require("underscore")
class Emaileroptions: {}
data: {}
# Define attachments here attachments: [ fileName: "logo.png" filePath:"./public/images/email/logo.png"cid: "logo@myapp" ]
constructor: (@options, @data)->
send: (callback)-> html = @getHtml(@options.template, @data) attachments = @getAttachments(html) messageData = to:
"'#{@options.to.name} #{@options.to.surname}' <#{@options.to.email}>"from: "'Myapp.com'" subject: @options.subject html:html generateTextFromHTML: true attachments: attachments transport = @getTransport() transport.sendMail messageData, callback
getTransport: ()-> emailer.createTransport "SMTP", service: "Gmail" auth: user: "myappemail@gmail.com" pass: "secretpass"getHtml: (templateName, data)-> templatePath ="./views/emails/#{templateName}.html"templateContent = fs.readFileSync(templatePath, encoding="utf8") _.template templateContent, data, {interpolate: /\{\{(.+?)\}\}/g}
getAttachments: (html)-> attachments = [] for attachment in @attachments attachments.push(attachment) if html.search("cid:#{attachment.cid}") > -1 attachmentsexports = module.exports = Emailer
/lib/emailer.coffee.
You'll need to have the email templates stored in /views/emails/ as HTML files and the attachments in /public/images/email/.A potential email view will look like this:
<!-- invite.html -->
<html>
<head>
<title>Invite from Myapp</title>
</head>
<body>
<p>
Hi {{name}} {{surname}},
</p>
<p>
Myapp would like you to join it's network on
<a href="http://myapp.com">Myapp.com</a>.
<br />
Please follow the link bellow to register:
</p>
<p>
<a href=
"http://myapp.com/register?invite={{id}}"
>
http://myapp.com/register?invite={{id}}
</a>
</p>
<p>
Thank you,
<br />
Myapp Team
</p>
<p>
<a href="http://myapp.com"><img src="cid:logo@myapp" /></a>
</p>
</body>
</html>
UnderscoreJS template will take care about your variables in the template and the
To use the class in your code you have to instantiate a new Emailer object with the desired options, the template data and send the email:getAttachments() function will automatically attache the files you need by the cid from the template.options = to: email: "username@domain.com" name: "Rick" surname: "Roll" subject: "Invite from Myapp" template: "invite"
data = name: "Rick" surname "Roll" id: "3434_invite_id"Emailer = require "../lib/emailer" emailer = new Emailer options, data emailer.send (err, result)-> if err console.log err
Using a MongooseJS: http://mongoosejs.com/ model for the invites you would have something like this:
And you'll call it from an ExpressJS router:InviteSchema = new Schema email: type: String name: type: String surname: type: String status: type: String enum: ["pending", "accepted"] default: "pending" clicks: type: Number default: 0 created_at: type: Date default: Date.now
InviteSchema.methods.send = ()-> options = to: email: @email name: @name surname: @surname subject: "Invite from Myapp" template: "invite" Emailer = require "../lib/emailer" emailer = new Emailer options, @ emailer.send (err, result)-> if err console.log errInvite = mongoose.model("Invite", InviteSchema) exports = module.exports = Invite
Invite = require('../models/invite')
module.exports = (app)->
app.post '/invites', (req, res)-> data = req.body invite = new Invite data invite.save ()-> invite.send() res.writeHead(303, {'Location': "/invites"}) res.end()app.get '/invites', (req, res)-> Invite.find().desc("created_at").run (err, invites)-> res.render 'invites/invites', {title: "Invites", invites: invites}
That's all about it.
Your feedback is highly appreciated. Thanks.
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