This is the FastAPI textbook. Read in order for a full education, or jump to a chapter.
It pairs with the SQLAlchemy 2.0 textbook , the Postgres-focused SQLAlchemy textbook , the Pydantic v2 textbook , and the Alembic textbook .
FastAPI Textbook Ch. 11 — Observability: Logging, Tracing, and Metrics
Production observability: structlog with contextvars, OTEL tracing, Prometheus metrics, log/trace correlation, and the patterns that pay back.