ln-772-error-handler-setup

Global exception handling in FastAPI is configured by adding middleware that catches runtime errors and standardizes API responses. This Skill maps custom exceptions to HTTP status codes and formats outputs using RFC 7807 ProblemDetails for consistent error delivery.

Standardizing API error responses in ASP.NET Core is achieved by implementing global exception handling middleware. This approach enforces a consistent RFC 7807 ProblemDetails format across the backend and automatically maps custom exceptions to the correct HTTP status codes.

Environment-aware error handling differentiates response details by environment, exposing full stack traces in development while hiding sensitive data in production. This ensures secure, structured error responses globally without leaking internal application details.

Yes, you can map custom exceptions to HTTP status codes in Python backends by defining a taxonomy of custom errors and processing them through global middleware. This routes specific application errors to structured 400 Bad Request or 500 Server Error responses.

A generic server error occurs when global exception handling is not configured to catch validation failures. Implementing custom exception middleware maps invalid data submissions to structured 400 Bad Request responses with specific field errors.

Yes, this global error handling middleware supports both ASP.NET Core and FastAPI Python backends. It configures environment-aware exception mapping to standardize API error formats across different technology stacks.