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Explain Middleware and the ASP.NET Core Request Pipeline.

Mid .NET Core
Quick Answer The middleware pipeline is a series of delegates chained together. Each middleware receives the HttpContext, does its work, and optionally calls next() to pass to the next middleware. The pipeline builds up in Program.cs. It runs forward through all middlewares on request, and backward (through finally/response-writing middlewares) on the way back.

Answer

Middleware are ordered components processing every HTTP request sequentially. Each middleware can inspect/modify requests and responses, call the next middleware, or short-circuit the pipeline. The pipeline controls routing, authentication, logging, static files, and more.

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