Distribute prepaid codes via mailgun

distribute-prepaid-codes.js

var fs = require('fs');
// npm install csv-parse
var parse = require('csv-parse');

// CSV with ONLY the codes you want to give away
var prepaid_codes_file = 'giveaway-codes.csv';
var emails_file = 'giveaway-emails.csv';

var Mailgun = require('mailgun').Mailgun;

/* CONFIG */
var mg = new Mailgun('YOUR_KEY_HERE');
var sender_name = "YOUR NAME";
var sender_company = "YOUR COMPANY";
var sender_email = "email@domain.com";

function createEmailBody(prepaid_code) {
  return 'Thanks for being a part of ' + sender_company + '! Here\'s a complimentary year of front-end and Node.js training from Frontend Masters.<br><br>'+
    'Prepaid code: '+prepaid_code+'<br><br>'+
    'Go here to redeem! https://frontendmasters.com/enroll/prepaid/<br><br>'+
    'Enjoy,<br>'+
    '--<br>'+
    sender_name + '<br>'+
    sender_company;
}

function sendEmail(email, body) {
  mg.sendRaw(sender_name + ' <' + sender_email + '>',
        [email],
        'From: ' + sender_name + ' <' + sender_email + '>' +
          '\nTo: ' + email +
          '\nContent-Type: text/html; charset=utf-8' +
          '\nSubject: \ud83d\udd11 Member Access Details' +
          '\n\n' + body,
        function(err) { err && console.log(err) });
}

var emails_file_parser = parse({delimiter: ','}, function(err, emails){
  var prepaid_file_parser = parse({delimiter: ','}, function(err, prepaid_codes){
    emails.forEach(function(email,i){
      var prepaid_code = prepaid_codes[i][0];
      var email_address = email[0];
      var email_text = createEmailBody(prepaid_code);
      // sendEmail(email_address, email_text);
      console.log(email_address, prepaid_code);
    });
    return;
  });

  fs.createReadStream(__dirname+'/'+prepaid_codes_file).pipe(prepaid_file_parser);
});

fs.createReadStream(__dirname+'/'+emails_file).pipe(emails_file_parser);