fastapi-templates

Scaffolding a FastAPI project creates a complete project structure with organized directories for routes, models, schemas, services, and repositories. This template automates setup of async REST APIs, dependency injection, middleware, error handling, and database integration—eliminating manual boilerplate so you start coding business logic immediately.

Structure FastAPI REST APIs using layered architecture: routes handle HTTP requests, services contain business logic, repositories manage data access, and dependency injection connects components. This pattern leverages FastAPI's async capabilities and Pydantic for validation, making code testable, maintainable, and performant.

FastAPI integrates with PostgreSQL through asyncpg and SQLAlchemy, enabling non-blocking async database queries. The template provides configured patterns for async CRUD operations, connection pooling via lifespan events, and repository methods that work seamlessly with FastAPI's dependency injection system.

Authentication and authorization in FastAPI use dependency injection with security schemes. The template includes patterns for JWT tokens via python-jose, password hashing with passlib, and protected route handlers that verify user credentials before allowing access to endpoints.

FastAPI supports custom middleware and structured error handling through lifespan events and exception handlers. The template pre-configures CORS middleware, database connection lifecycle management, and centralized error responses—reducing setup time while ensuring consistency across your API.

Production FastAPI applications require fastapi for the framework, uvicorn as the ASGI server, SQLAlchemy and asyncpg for async database access, Pydantic for data validation, passlib and python-jose for authentication, and pytest with pytest-asyncio for testing. The template pre-configures all these dependencies.