Pass variable to html template in nodemailer

Question

I want to send email with nodemailer using html template. In that template I need to inject some dynamically some variables and I really can\'t do that. My code:

Answer 1

You can use a Web Request to build an html template using handlebars or any other engine.

Create a template

First you must create an html template for the email body. In this example I used a handlebars hbs file.

Do your design stuff with html and add the variables that you will need in the message:

   
   
    
        
        
        
    
    
     
Hi {{data.name}}
    
   

Create a template request

You must create the access to this view. Then a request is created where we can send the template name as an url parameter to make the request parameterizable for other templates.

const web = express.Router()

web.post('/template/email/:template', function(req, res) {
  res.render(`templates/email/${req.params.template}`, {
    data: req.body        
  })
})

Mail function

Finally you can send the email after making the request to the template. You can use a function like the following:

const nodemailer = require('nodemailer')
const request = require("request")

function sendEmail(toEmail, subject, templateFile) {
    var options = {
        uri: `http://localhost:3000/template/email/${templateFile}`,
        method: 'POST',
        json: { name: "Jon Snow" } // All the information that needs to be sent
    };  
    request(options, function (error, response, body) {
        if (error) console.log(error)
        var transporter = nodemailer.createTransport({
            host: mailConfig.host,
            port: mailConfig.port,
            secure: true,
            auth: {
                user: mailConfig.account,
                pass: mailConfig.password
            }
        })
        var mailOptions = {
            from: mailConfig.account,
            to: toEmail,
            subject: subject,
            html: body
        }       
        transporter.sendMail(mailOptions, function(error, info) {
            if (error) console.log(error)
        })
    })
}