Examples

C# Real-Time Chat

Building a Real-Time Chat

C# real-time chat uses SignalR for WebSocket messaging.

Introduction to SignalR and Real-Time Chat

Building a real-time chat application in C# involves leveraging SignalR, a library that allows server-side code to push content to connected clients instantly. SignalR uses WebSockets when available, and falls back to other techniques when necessary. This makes it a great choice for applications that require high-frequency updates, such as chat applications.

Setting Up a SignalR Hub

A SignalR Hub is a central point where communications between the server and clients occur. To create a Hub, you need to define a class that inherits from Hub. Here's how you can set it up:

Configuring the Server

Next, you need to configure the server to use SignalR. This involves adding SignalR services to your ASP.NET Core application and mapping the SignalR routes in the Startup.cs file:

Creating the Client Side

The client-side code enables users to connect to the SignalR hub and send/receive messages. You will typically use JavaScript in your HTML to establish this connection:

Running Your Chat Application

To run your chat application, ensure your ASP.NET Core server is running and your client-side HTML is properly linked to the SignalR script. Once set up, open your application in multiple browser windows to test the real-time messaging functionality.