Send Telegram Messages in C# using Visual Studio 2022 - Complete Guide

Automate Telegram messaging using C# .NET and the WhatsMate Telegram Gateway REST API

Posted on July 20, 2022   Share on Facebook Share on LinkedIn Share on Twitter Share on Google+

Last reviewed: January 28, 2026  

🚀 Automate Telegram Messaging with C# .NET and VS 2022

Looking to integrate Telegram messaging into your modern .NET applications? This guide walks you through sending Telegram messages using C# and the WhatsMate Telegram Gateway REST API with Visual Studio 2022. Perfect for .NET developers building contemporary Windows applications, services, or enterprise solutions with the latest Visual Studio IDE.

Note for Visual Studio 2019 users: If you’re using Visual Studio 2019, please refer to this earlier tutorial instead.

📋 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. Visual Studio 2022 - Community, Professional, or Enterprise edition
  4. .NET 6.0 or higher - Modern .NET runtime and SDK
  5. Basic C# knowledge - Familiarity with Visual Studio 2022 and C# development

⚠️ 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 Telegram message from a C# application using Visual Studio 2022:

1. Copy the C# Template

Copy the following source code to the main class in your Console Application in Visual Studio:

2. Configure a few Parameters

Customize these key parameters in the C# code:

  • Line 10: Replace with your Telegram gateway instance ID
  • Lines 11-12: Update with your Client ID and Secret
  • Line 19: Specify the target phone number (including the country code, e.g., 12025550108) and provide your message content

3. Build and Run Your Application

Build and run the application in Visual Studio 2022 to deliver your Telegram message.

🔧 Common Use Cases

This C# integration approach with Visual Studio 2022 is ideal for:

  • Modern Windows applications - Create contemporary desktop utilities with Telegram notifications
  • Enterprise solutions - Integrate Telegram into modern business .NET applications
  • .NET 6+ projects - Leverage Telegram in the latest .NET ecosystem
  • Visual Studio 2022 projects - Extend modern C# solutions with Telegram
  • Cloud-native applications - Build Telegram integration for cloud-based .NET solutions

🚀 Get Started Today

Ready to integrate Telegram messaging into your modern C# applications? You’ll need a trial account to access the API. Sign up for a 2-week trial and start sending messages within minutes!

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