Small script to send received emails to a telegram bot, easy piece thanks to: node-telegram-bot-api and mail-listener2

mail2telegram.js

const makeBot = require('node-telegram-bot-api');
const mailListener = require("mail-listener2");

const config = {
  // First get your telegram bot
  telegramToken: 'Obtain your token talking to BotFather on telegram',
  // Send a message to the bot and paste here your chat id (the response)
  // TODO: login to avoid this step and allow multiple users
  chatID = 'Chat ID',
  // Gmail or Gsuite settings
  email: "gmail or gsuite email here",
  email_pass: "email password here"
};

const bot = new makeBot(config.telegramToken, { polling: true });
bot.on('message', msg => bot.sendMessage(chatId, msg.chat.id));

var mailInbox = new mailListener({
  username: config.email,
  password: config.email_pass,
  host: "imap.gmail.com",
  port: 993,
  tls: true,
  markSeen: true,
  fetchUnreadOnStart: true,
});

mailInbox.start(); // start listening
mailInbox.on("server:connected", function () {
  console.log("imapConnected");
});
mailInbox.on("server:disconnected", function () {
  console.log("imapDisconnected");
  throw new Error('Restart app due to IMAP disconnection');
});
mailInbox.on("error", function (err){
  console.log(err);
});
mailInbox.on("mail", function (mail, seqno, attributes){
  bot.sendMessage(config.chatID, `
<b>${mail.subject}</b>

${mail.text}
  `, {
    parse_mode: 'HTML'
  });
});

The script is made to be run by a supervisor, the client disconnects sometimes so the script dies to let the supervisor restart him and restart the connection. A good one is https://github.com/foreversd/forever

Dependencies install:

yarn init && yarn add node-telegram-bot-api mail-listener2

Does this still work? Providing a password from your gmail account is the only way for this work properly? Can you have like a specific app password for this?