transporter.ts

/**
 *  SudoSOS back-end API service.
 *  Copyright (C) 2024  Study association GEWIS
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Affero General Public License as published
 *  by the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Affero General Public License for more details.
 *
 *  You should have received a copy of the GNU Affero General Public License
 *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
 *
 *  @license
 */

/**
 * This is the module page of the transporter.
 *
 * @module internal/mailer
 */

import nodemailer from 'nodemailer';

export default function createSMTPTransporter() {
  return nodemailer.createTransport({
    host: process.env.SMTP_HOST,
    port: parseInt(process.env.SMTP_PORT, 10),
    secure: process.env.SMTP_TLS === 'true',
    auth: {
      user: process.env.SMTP_USERNAME,
      pass: process.env.SMTP_PASSWORD,
    },
    from: process.env.SMTP_FROM,
    pool: true,
    maxConnections: parseInt(process.env.SMTP_MAX_CONNECTIONS || '', 10) || undefined,
  });
}