exception-handler

Global exception handling in ASP.NET Core is implemented by registering a middleware component in your startup pipeline. This skill uses UseExceptionHandling to intercept unhandled errors, enforce custom exception types, and return a consistent error response across all API endpoints.

To standardize error codes in C# web APIs, you define a base CustomException class containing an ErrorCode property, derive specific exception types from it, and implement a shared ErrorCodes class. This enforces a unified error response model throughout the codebase.

The best way to separate business logic from error handling in C# is applying a centralized middleware approach. A global exception middleware intercepts failures, applying structured logging and traceability while keeping business logic focused only on core domain operations.

Yes, ASP.NET Core middleware supports structured logging for unhandled exceptions. This skill applies a middleware-based approach that captures exceptions globally, enabling optional logging and traceability to ensure unified error tracking across services.

Yes, you can use a custom exception hierarchy to enforce a uniform error response model. By creating a base CustomException with predefined error codes and deriving specific exceptions, the middleware standardizes all API failure responses consistently.

You should not use global middleware for exception handling in C# when an endpoint requires highly specific, localized error trapping and custom recovery logic. Centralized middleware works best for standardizing general API failures rather than complex contextual retries.