A little example of how to send emails with MailJet Node.js module.

MailJet Node Send.js

// This calls sends an email to one recipient.
var mailjet = require ('node-mailjet')
  .connect(process.env.MJ_APIKEY_PUBLIC, process.env.MJ_APIKEY_PRIVATE)
var request = mailjet
  .post("send")
  .request({
    "FromEmail": "caco0516@gmail.com",
    "FromName": "noreply@growposapp.com",
    "Subject": "Bienvenido a Grow POS",
    "MJ-TemplateID": "103446",
    "MJ-TemplateLanguage": true,
    "Recipients": [
      { "Email": "passenger@mailjet.com" }
    ],
    "Vars": {
      "email": "costumer@costumer.com"
    }
  });
request
  .on('success', function (response, body) {
    console.log (response.statusCode, body);
  })
  .on('error', function (err, response) {
    console.log (response.statusCode, err);
  });