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What is an Exception Filter vs Middleware Exception Handling?

Mid .NET Core
Quick Answer Exception Filters catch exceptions thrown by MVC actions and result execution — they run late in the MVC pipeline. Middleware exception handling (UseExceptionHandler) catches exceptions from the entire pipeline — including routing, authorization, and any middleware. Middleware catches more broadly; Exception Filters give you MVC context (current controller, action, route data).

Answer

Exception middleware (e.g., UseExceptionHandler) sits high in the pipeline and can catch exceptions from the entire app, including non-MVC endpoints.

Exception Filters run only within the MVC pipeline and can convert exceptions to action results at the controller/action level.

Best practice is to use middleware for global exception handling and filters for MVC-specific customization.

S
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