Send Images to Telegram Groups in Node.js - Complete Guide

Automate Telegram group image sharing using the WhatsMate Telegram Gateway REST API

Posted on June 24, 2022   Share on Facebook Share on LinkedIn Share on Twitter Share on Google+

Last reviewed: February 6, 2026  

Automate Telegram Group Image Sharing with Node.js

Need to integrate Telegram group image sharing into your Node.js applications for real-time notifications, automated reporting, or web services? This guide shows you how to deliver images to Telegram groups using Node.js and the WhatsMate Telegram Gateway REST API. Perfect for Node.js developers building web applications, backend services, or automation tools that need visual content delivery to group chats.

📋 Prerequisites

Before you begin, ensure you have:

  1. A WhatsMate Telegram Gateway account - Required for API access
  2. Group membership - The gateway must be a member of the target Telegram group
  3. Node.js installed - Version 8 or later recommended
  4. Image file ready - Have the image you want to send available locally
  5. Basic JavaScript knowledge - Familiarity with Node.js and npm

⚠️ Important: The gateway must be a member of the Telegram group you want to send messages to. The group admin phone number is used to uniquely identify the group.

🎥 Video Walkthrough

📝 Step-by-Step Implementation

Follow these steps to send your first image to a Telegram group from a Node.js application:

1. Copy the Node.js Source Code

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:

  • Line 7: Replace "YOUR_OWN_GATEWAY_INSTANCE_ID" with your Telegram gateway instance ID
  • Line 8: Replace "YOUR_OWN_CLIENT_ID" with your Client ID
  • Line 9: Replace "YOUR_OWN_SECRET_ID" with your Client 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/cute-girl.jpg" with the path to your image file
  • Line 15: Replace "Lovely Girl" with an optional caption for your image

3. Make the Script Executable

Set execute permissions on your script:

chmod 755 group-send-telegram-photo.js

4. Run Your Node.js Script

Execute the script to deliver your image to the Telegram group:

./group-send-telegram-photo.js

Alternative: If the script isn’t executable, run it with Node.js directly:

node group-send-telegram-photo.js

🔧 Common Use Cases

This Node.js integration is ideal for:

  • Web application integration - Add Telegram group image sharing to Node.js web apps and APIs
  • Real-time notification systems - Send visual alerts or updates from Node.js services to team groups
  • Automated reporting tools - Generate and deliver charts, screenshots, or visual data to Telegram groups
  • Node.js microservices - Integrate with microservice architectures for visual communication
  • Server-side automation - Automate image delivery as part of Node.js batch processing or cron jobs

🚀 Get Started Today

Ready to integrate Telegram group image sharing into your Node.js applications? You’ll need a trial account to access the API. Sign up for a 2-week trial and start sending images to groups from your Node.js code within minutes!

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