pipeline-behaviors

Centralize cross-cutting concerns in MediatR by implementing pipeline behaviors that intercept requests globally, applying validation, logging, and transactional support consistently without scattering boilerplate across individual handlers.

Add performance monitoring to MediatR pipeline behaviors by implementing a PerformanceBehavior class that warns on slow requests and provides diagnostics, then wiring it into the pipeline during startup registration.

Wrap MediatR requests in database transactions by implementing a TransactionBehavior class that optionally intercepts requests via a marker interface, executing the handler within a transactional scope during pipeline execution.

Handle validation in a .NET CQRS pipeline using a ValidationBehavior class that applies FluentValidation-like pre-request checks, ensuring invalid requests fail early before reaching the handler logic.

Configure MediatR pipeline behaviors during .NET startup by registering the behavior classes in a consistent order using simple DI wiring, immediately applying standardized cross-cutting concerns across all application requests.

Pipeline behaviors for unhandled exceptions intercept unexpected errors globally using an UnhandledExceptionBehavior class that logs the failure and rethrows the error, preventing scattered try-catch blocks across handlers.