Python Web Development with FastAPI

What FastAPI is (ASGI, auto-docs, type hints), first endpoint with @app.get, HTTP methods (GET/POST/PUT/DELETE), response models with Pydantic, auto-docs at /docs (Swagger UI) and /redoc

Pydantic BaseModel for request bodies, field validation (min_length/max_length/ge/le/regex), custom validators (@field_validator/@model_validator), separate input/output models, validation error formatting

Path parameters with type coercion, query parameters with defaults and Optional, Header() dependency, Depends() basics for shared validation, pagination pattern (skip/limit with total count)

SQLAlchemy ORM (engine/session/declarative base), table models with Column types, session management with yield dependency, CRUD functions (add/query/commit/delete), SQLite for development

Full CRUD (create/read single+list/update PUT+PATCH/delete), HTTP status codes (201/204/404/409), HTTPException, custom exception handlers, partial updates with exclude_unset

API key auth with headers and Depends, OAuth2 password flow with OAuth2PasswordBearer, JWT tokens (structure/creation/verification), middleware for request logging and CORS, role-based access