fastapi-logging

What problem does it solve?

This skill enables structured JSON logging with automatic correlation IDs for FastAPI applications, improving observability and traceability across requests.

Core Features & Use Cases

• Structured JSON log output with timestamp, level, logger, and correlation_id for easy analysis.
• CorrelationIdMiddleware to generate or propagate a unique request ID across services.
• Early boot configuration via setup_logging() to standardize logs before app startup.
• Usage in services can utilize get_logger(name) to emit context-rich logs.

Quick Start

Install dependencies (e.g., python3 -m pip install fastapi uvicorn python-json-logger) and add in your FastAPI app:

• Call setup_logging() before creating the FastAPI instance.
• Add CorrelationIdMiddleware to the app.
• Use get_logger to emit structured logs.