FastApi

It is a python framework to build quickly restful API's. It is nice, modern, and with good performance. It has Openapi implementation by default, you don't need to manually create and maintain openapi.yaml. By default, fastApi generates automatically openapi document.

Uses pydantic for models, for data validations.

Support async by default too, enriching performance even faster. Careful when using async + DB.

References

• FastAPI
• Pydantic models
• sqlmodel
• FastAPI def vs async def