Building Real-Time Applications With SignalR & .NET 10: A Production-Ready Tutorial With Full Code

Mori

15 min read

·

Oct 6, 2026

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Modern applications increasingly need to react immediately.

A customer places an order and the admin dashboard should update instantly.

A payment succeeds and the user’s screen should change without a refresh.

A delivery driver changes location and the tracking page should update.

A support agent receives a message and should see it immediately.

You could build this with polling:

Browser ──► GET /orders
Browser ──► GET /orders
Browser ──► GET /orders
Browser ──► GET /orders

But polling wastes requests and still doesn’t provide true real-time communication.

With ASP.NET Core SignalR, the architecture becomes:

Browser
   │
   │ persistent connection
   ▼
SignalR Hub
   │
   ├──► Client A
   ├──► Client B
   └──► Client C

SignalR provides a high-level abstraction for real-time client/server communication and can use WebSockets, with fallback transports when appropriate. Microsoft’s .NET 10 documentation continues to recommend SignalR for these scenarios. Microsoft Learn