Send Images over Telegram in Java - Complete Guide

Automate Telegram image sharing using the WhatsMate Telegram Gateway REST API

Posted on June 17, 2022   Share on Facebook Share on LinkedIn Share on Twitter Share on Google+

Last reviewed: January 30, 2026  

🚀 Automate Telegram Image Sharing with Java

Looking to automate Telegram image sharing, visual notifications, or media delivery from your Java applications? This guide walks you through sending images to Telegram users using Java and the WhatsMate Telegram Gateway REST API. Perfect for Java developers, system administrators, and automation enthusiasts who want to integrate visual content delivery into their Java-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. Java development environment - JDK installed and configured
  4. Basic Java knowledge - Familiarity with Java programming
  5. Image file ready - Have the image 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.

🎥 Video Walkthrough

📝 Step-by-Step Implementation

Follow these steps to send your first image to a Telegram user from a Java application:

1. Copy the Java Code Template

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

2. Configure a few Parameters

Customize these key parameters in the Java code:

  • Line 49: Replace YOUR_INSTANCE_ID_HERE with your Telegram gateway instance ID
  • Lines 50-51: Update YOUR_CLIENT_ID_HERE and YOUR_CLIENT_SECRET_HERE with your Client ID and Secret
  • Line 60: Replace 1234556899 with the target phone number (including the country code)
  • Line 62: Replace ../assets/cute-girl.jpg with the path to your image file
  • Line 64: Replace Lovely Gal with an optional caption for your image

3. Compile the Java Program

Compile the Java source code:

javac TelegramPhotoSender.java

4. Send Your Image

Run the compiled Java program to deliver your image to Telegram:

java TelegramPhotoSender

🔧 Common Use Cases

This automation approach is ideal for:

  • Visual system monitoring - Send server status screenshots or graphs to Telegram from Java applications
  • Automated photo sharing - Deliver daily photos or visual updates via Telegram using Java
  • Image-based reports - Share charts, diagrams, or visual data through Telegram from Java systems
  • Media content delivery - Distribute images as part of automated Telegram workflows in Java
  • Integration with Java image processing - Combine with Java libraries that generate or modify images for Telegram delivery

🚀 Get Started Today

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

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