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

🚀 Automate Telegram Group Voice Note Sharing with Node.js/JavaScript

Need to deliver voice messages, audio recordings, or spoken announcements to Telegram groups directly from your JavaScript applications? This guide walks you through sending voice note files (OPUS format) to Telegram groups 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 group 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. Group registration - The Telegram group must be registered 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
6. Built-in Node.js modules - This example uses native http and fs modules (no external dependencies)

⚠️ Important: Telegram groups must be registered with the WhatsMate Telegram Gateway before they can receive messages. Unregistered groups 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 group 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 Muscle Men Club with the name of your target Telegram group
• Line 13: Replace 19159876123 with the phone number of the group admin (including country code)
• Line 14: Replace ../assets/martin-luther-king.mp3 with the path to your OPUS voice note file
• Line 15: Replace anyname.opus with the desired filename for the voice note
• Line 16: Replace I have a dream with an optional caption for your voice note

3. Run Your Node.js Script

Execute the script to deliver your voice note to the Telegram group:

node group-send-telegram-opus.js

🔧 Common Use Cases

This automation approach is ideal for:

• Web application integration - Send voice notifications from Node.js web applications to team collaboration groups
• Real-time applications - Deliver voice alerts from real-time Node.js applications (Socket.io, WebSockets) to Telegram groups
• CLI tool development - Integrate voice messaging capabilities into Node.js command-line tools for team communication
• Server monitoring - Send voice alerts for server status or monitoring events from Node.js applications to operations teams
• JavaScript community content - Share recorded voice messages, podcasts, or spoken announcements with JavaScript/Node.js Telegram groups

🚀 Get Started Today

Ready to automate your group 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 to groups within minutes!

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