Rate Limiting and Caching
Implement Redis-backed rate limiting per IP and API key, and cache expensive responses with TTL-based invalidation in FastAPI.
OpenAPI Customization
Customize FastAPI's OpenAPI schema — metadata, tags, examples, hiding internal routes, and generating client SDKs.
Lifespan and Startup/Shutdown
Use the FastAPI lifespan context manager for startup and shutdown logic — initializing DB pools, HTTP clients, caches, and migrating from legacy event handlers.