Sending weekly emails using nodemailer

emailWeekly.js

'use strict';
var nodemailer = require('nodemailer');
var schedule = require('node-schedule');

//configure nodemailer
// visit: https://nodemailer.com/
// For other types of transports (Amazon SES, Sendgrid,mailchimp...) see https://nodemailer.com/2-0-0-beta/setup-transporter/
// visit the following to get a more rudimentary usage of nodemailer
// https://gist.github.com/reach2ashish/4bce68c3e5950916320b5bbcca0cf6b8
var mailTransport = nodemailer.createTransport('smtps://<user>%40gmail.com:<password>@smtp.gmail.com');
// users is a json list of users
//email html has the html of the email
// you can use escape in node.js to generate your email html 
function sendWeekly(users, emailHtml) {
  Object.keys(users).forEach(function(uid) {
    var user = users[uid];
    if (user.email) {
      var mailOptions = {
        from: '"Ashish Cherian" <[email protected]>',
        to: user.email,
        subject: 'This week\'s top posts!',
        html: emailHtml
      };
      mailTransport.sendMail(mailOptions).then(function() {
        console.log('Weekly top posts email sent to: ' + user.email);
        // Save the date at which we sent the weekly email.
      }).catch(function(error) {
        console.log('Failed to send weekly top posts email:', error);
      });
    }
  });
}