fastapi

Auditing FastAPI code for production safety involves analyzing route handlers, dependency injection, and response models to identify dangerous patterns. The audit enforces safer patterns by suggesting structural fixes for reliability and correct HTTP status codes.

FastAPI route handlers should delegate to a service layer to keep endpoints thin and maintainable. This pattern separates HTTP request handling from business logic, enforcing correct response models and robust exception handling for production safety.

The best way to manage FastAPI lifespan events is using modern async context managers. This approach ensures proper startup and shutdown procedures, replacing deprecated event handlers to maintain robust application lifecycle management.

Fix incorrect FastAPI dependency injection by using Annotated types for proper type hints. This modern approach enforces declared response models and ensures safer DI patterns compared to older syntax, improving code reliability.

The Skill enforces Pydantic v2 patterns for FastAPI response models to ensure type safety and validation. It identifies non-compliant usage and suggests modern fixes for robust data serialization and correct HTTP status codes.

Avoid using FastAPI background tasks in route handlers when the task requires strict transactional integrity or complex lifespan management. The Skill identifies these edge cases and suggests safer architectural patterns for production reliability.