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Real-Time Applications with SignalR in ASP.NET Core

Rizwan
3 min readJan 19, 2025

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Photo by Lukas Blazek on Unsplash

Real-time applications are becoming increasingly popular in modern software development. Features such as live chat, notifications, and real-time updates are now essential for enhancing user experience. ASP.NET Core SignalR provides an easy way to implement real-time communication in your applications. In this article, we’ll explore SignalR, understand its architecture, and build a simple real-time chat application.

What is SignalR?

SignalR is a library for ASP.NET Core that simplifies the process of adding real-time web functionality to applications. It allows server-side code to push updates to connected clients instantly. SignalR abstracts away the complexity of real-time communication by using WebSockets as the primary transport protocol and falling back to other techniques (such as Server-Sent Events or Long Polling) when WebSockets are not available.

Key Features of SignalR:

  1. Real-time communication: Allows bi-directional communication between server and client.
  2. Automatic reconnection: Handles client reconnections automatically.
  3. Scalability: Works seamlessly with distributed systems using backplanes like Redis, Azure SignalR, or SQL Server.
  4. Authentication and authorization

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Rizwan
Rizwan

Written by Rizwan

Senior Software Engineer | Mentor | Tech Enthusiast | Passionate about building scalable solutions, exploring the latest technologies.

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