FastAPI

Purpose

Build FastAPI services that use the framework's strengths — declarative validation and dependency injection — without falling into its two standard traps: blocking calls inside async def, and business logic in the route handler.

When to Use

• Building or reviewing a FastAPI application.
• Structuring dependencies, authentication, and database sessions.
• Diagnosing latency that appears only under concurrency.
• Writing tests for FastAPI endpoints.

Capabilities