Cheatsheets for FastAPI. Pair with the FastAPI textbook for depth.
FastAPI Cheatsheet 11 — Docker, Kubernetes, and Deploy
Cheatsheet: Dockerfile (multi-stage, distroless), Uvicorn flags, K8s deployment, probes, HPA, lifespan, graceful shutdown.
FastAPI Cheatsheets
Quick-reference cheatsheets for FastAPI — every API surface, every common task.
FastAPI Cheatsheet 12 — Middleware Patterns
Cheatsheet: CORS, GZip, sessions, request ID, timing, body inspection, custom ASGI middleware, ordering rules.
FastAPI Cheatsheet 13 — OpenAPI, Swagger UI, and Schema Tweaks
Cheatsheet: customize OpenAPI title/description, exclude routes, tag groups, custom servers, JS clients.
FastAPI Cheatsheet 14 — Settings, Config, and Environments
Cheatsheet: BaseSettings, env_file, secrets directory, lru_cache, CLI integration, multi-env config.
FastAPI Cheatsheet 15 — Common Errors and How to Fix Them
Cheatsheet: 422 patterns, deps not resolving, async/sync mismatch, CORS, OpenAPI weirdness, and quick fixes.
FastAPI Cheatsheet 16 — Pagination Patterns
Cheatsheet: offset/limit, keyset, opaque cursor encoding, total counts, generic Page[T] response model.
FastAPI Cheatsheet 17 — Caching: HTTP, Redis, fastapi-cache
Cheatsheet: ETag, Cache-Control, Redis cache, fastapi-cache, conditional GET, invalidation.
FastAPI Cheatsheet 18 — Streaming and LLM Integration
Cheatsheet: streaming Claude / GPT / vLLM tokens via SSE, tool-call loops, cancellation, prompt caching.
FastAPI Cheatsheet 19 — Health, Probes, and Lifespan
Cheatsheet: liveness vs readiness, deep health checks, lifespan resource management, startup probes.
FastAPI Cheatsheet 20 — Production Checklist
Pre-launch checklist: deps, config, observability, security, data, deployment, on-call.