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What are common failure modes of ASP.NET Core Middleware Pipeline?
What are common failure modes of ASP.NET Core Middleware Pipeline?
Answers use simple, clear English.
Quick interview answer
Common failures around ASP.NET Core Middleware Pipeline: blocking the hot path, ignoring backpressure, and weak timeout/retry design. Placing UseAuthentication after UseAuthorization; forgetting UseRouting.
Detailed answer
Failure modes for ASP.NET Core Middleware Pipeline: Known pitfalls: Placing UseAuthentication after UseAuthorization; forgetting UseRouting. • Missing timeouts / unbounded retries • No backpressure when downstream slows • Assuming ordering/guarantees the runtime does not provide How seniors prevent them: Follow Microsoft template order; use MapWhen for branch pipelines. Parent context: Common mistakes: Placing UseAuthentication after UseAuthorization; forgetting UseRouting. Best practices: Follow Microsoft template order; use MapWhen for branch pipelines.
Full explanation
Name concrete failure modes and the mitigation for each — that scores higher than a vague “it can fail.” Request flows through middleware chain: Exception → HTTPS → Routing → Auth → Endpoints. Each can short-circuit or call next(). Order matters critically.
Follow-up questions
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Parent context — ASP.NET Core Middleware Pipeline
Common mistakes: Placing UseAuthentication after UseAuthorization; forgetting UseRouting. Best practices: Follow Microsoft template order; use MapWhen for branch pipelines.
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