SignalR

Syntax

SignalR provides a client-server communication framework that allows real-time web functionality to be added to applications. To use SignalR, the following syntax should be used:

using Microsoft.AspNetCore.SignalR;
 
namespace SignalRDemo.Hubs
{
   public class ChatHub : Hub
   {
      public async Task SendMessage(string user, string message)
      {
         await Clients.All.SendAsync("ReceiveMessage", user, message);
      }
   }
}

Example

Here is an example of how SignalR can be used to send real-time messages between clients:

public class ChatHub : Hub
{
   public async Task SendMessage(string user, string message)
   {
      await Clients.All.SendAsync("ReceiveMessage", user, message);
   }
}

Output

When a user sends a message, it will be broadcast to all other clients in real-time.

Explanation

SignalR is a framework that allows real-time communication between clients and servers. It utilizes a WebSocket connection to provide low-latency, high-performance messaging capabilities. SignalR can be used to build real-time applications such as chat rooms, monitoring dashboards, and collaborative tools.

Use

SignalR can be used to build real-time applications that require real-time communication between clients and servers. Some common use cases include:

• Chat rooms
• Live sports scores and updates
• Real-time stock market data
• Collaborative editing tools

Important Points

• SignalR uses a WebSocket connection to provide real-time communication between clients and servers.
• SignalR can be used with ASP.NET Core to add real-time web functionality to an application.
• SignalR is optimized to handle a large number of connected clients, making it ideal for building real-time applications.

Summary

SignalR is a powerful framework that allows real-time communication between clients and servers. It can be used to build real-time applications such as chat rooms, monitoring dashboards, and collaborative tools. With SignalR, developers can add real-time web functionality to their applications to provide a more engaging and interactive experience for users.