mailer.js

/**
 * Mailer service to handle email sending
 * @module service/mailer
 */

import nodemailer from "nodemailer";

/**
 * Sends an email
 * @param {Array} recipients email addresses of recipients
 * @param {String} subject email subject
 * @param {String} bodyHtml email body
 * @returns {Object} status of the email
 */
const mailTo = async (recipients, { subject, bodyHtml }) => {
  const transporter = nodemailer.createTransport({
    host: "mail.privateemail.com",
    port: 465,
    auth: {
      user: process.env.MAILER_USER,
      pass: process.env.MAILER_PASSWORD,
    },
  });
  const data = {
    from: process.env.MAILER_USER,
    to: recipients,
    subject: subject,
    html: bodyHtml,
  };
  return await sendEmail(transporter, data);
};

/**
 * Wrapper for sending emails that returns a promise
 * @param {Object} transporter Nodemailer transporter object
 * @param {Object} data data to be send
 */
const sendEmail = async (transporter, data) =>
  new Promise((resolve, reject) => {
    transporter.sendMail(data, (err, info) => {
      if (err) reject(err);
      console.log('Sending email: ', info)
      resolve(info);
    });
  });

export default mailTo;