fastapi

Comprehensive FastAPI development skill for building production-ready Python APIs from Hello World to enterprise applications. Use this skill when the user asks about FastAPI or wants to build APIs with Python, including: (1) Creating new FastAPI projects or applications, (2) Building REST APIs with path operations, query parameters, request bodies, (3) Implementing authentication and authorization with OAuth2, JWT tokens, API keys, (4) Database integration with SQLModel, SQLAlchemy, CRUD operations, (5) Project structuring with APIRouter, dependencies, middleware, (6) Testing FastAPI applications with TestClient and pytest, (7) Deployment strategies including Docker, cloud platforms, HTTPS configuration, (8) Advanced features like WebSockets, background tasks, CORS, file uploads, (9) Debugging FastAPI issues or improving existing FastAPI code, (10) Questions about FastAPI best practices, patterns, or architecture. Triggers include phrases like "build an API", "create FastAPI app", "add authentication", "set