Send Voice Notes over Telegram in Node.js/JavaScript - Complete Guide

Automate Telegram voice note sharing using the WhatsMate Telegram Gateway REST API

Posted on June 22, 2022   Share on Facebook Share on LinkedIn Share on Twitter Share on Google+

Last reviewed: February 4, 2026  

Automate Telegram Voice Note Sharing with Node.js/JavaScript

Looking to automate voice message delivery, audio recordings, or spoken notifications from your JavaScript applications? This guide walks you through sending voice note files (OPUS format) to Telegram users using Node.js and the WhatsMate Telegram Gateway REST API. Perfect for JavaScript developers, full-stack engineers, and Node.js enthusiasts who want to integrate voice messaging into their JavaScript-based workflows.

📋 Prerequisites

Before you begin, ensure you have:

  1. A WhatsMate Telegram Gateway account - Required for API access
  2. Recipient registration - Each recipient must register with the Gateway first
  3. Node.js installed - Version 12+ recommended for modern JavaScript features
  4. Basic JavaScript knowledge - Familiarity with Node.js and JavaScript programming
  5. Voice note file ready - Have the OPUS file you want to send available locally

⚠️ Important: Recipients must register with the WhatsMate Telegram Gateway before they can receive messages. Unregistered users will not receive any messages from the Gateway. Registration instructions are available on the official WhatsMate site.

📝 Step-by-Step Implementation

Follow these steps to send your first voice note to a Telegram user from a Node.js application:

1. Copy the Node.js Code Template

Start by copying the following source code into your JavaScript file:

2. Configure a few Parameters

Customize these key parameters in the Node.js code:

  • Lines 7-9: Replace YOUR_OWN_GATEWAY_INSTANCE_ID, YOUR_OWN_CLIENT_ID, and YOUR_OWN_SECRET_ID with your gateway instance ID, Client ID, and Secret
  • Line 12: Replace 12025550108 with the target phone number (including the country code)
  • Line 13: Replace ../assets/martin-luther-king.mp3 with the path to your OPUS voice note file
  • Line 14: Replace anyname.opus with the desired filename for the voice note
  • Line 15: Replace I have a dream with an optional caption for your voice note

3. Make the Script Executable

Set execute permissions on your Node.js script:

chmod 755 send-telegram-opus.js

4. Send Your Voice Note

Run the Node.js script to deliver your voice note to Telegram:

./send-telegram-opus.js

🔧 Common Use Cases

This automation approach is ideal for:

  • AI/TTS integration - Generate voice messages using text-to-speech (TTS) APIs and deliver them to Telegram for automated announcements, notifications, or interactive voice responses
  • Webhook integration - Process incoming webhooks and respond with voice notes via Telegram
  • System monitoring alerts - Send voice alerts for server status or monitoring events from Node.js applications
  • Customer service automation - Send voice responses or information to clients via Telegram
  • Audio notifications - Deliver spoken alerts or voice notifications from Node.js systems

🚀 Get Started Today

Ready to automate your voice note sharing over Telegram with Node.js? You’ll need a trial account to access the API. Sign up for a 2-week trial and start sending voice notes within minutes!

Next Steps: Once you’ve mastered basic voice note sending, explore advanced features like sending audio files, images, or documents through the WhatsMate Telegram Gateway API documentation.