What is Middleware in ASP.NET Web API?

Updated Apr 28, 2026

Short answer

Middleware handles HTTP requests in pipeline.

Deep explanation

Middleware components process requests and responses sequentially, enabling logging, authentication, and routing.

Real-world example

Logging request/response lifecycle.

Common mistakes

  • Incorrect middleware order.

Follow-up questions

  • What is pipeline?
  • Why middleware?

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