How to send a voice note file to a Telegram group in Node.js

Using the WhatsMate Telegram Gateway REST API

Posted on June 29, 2022   Share on Facebook Share on LinkedIn Share on Twitter Share on Google+

Last reviewed: March 16, 2025  

This article shows you how to send a voice note file (e.g. an OPUS file) to a registered Telegram group in Node.js (JavaScript).

To send a Telegram message containing a voice note file in Node.js, do this:

  1. First, learn how to send a simple text message to a group on the official site.
  2. With the above knowledge, you can now download our sample code.
  3. Locate the file nodejs/group-send-telegram-opus.js.
  4. Study the Node.js source code and customize the TODO/FIXME lines.
  5. Change to the directory containing the script: cd nodejs
  6. Run the script to send your group the first OPUS file: ./group-send-telegram-opus.js

Happy coding :)