JWT User Authentication은 없지만,

Flask와 Python용 ORM SQLAlchemy

그리고 marshmallow https://marshmallow.readthedocs.io/en/stable/ 를 사용한 간단한 REST API만들기 

Marshmallow가 하는 일

• Validate input data.

• Deserialize input data to app-level objects.

• Serialize app-level objects to primitive Python types. The serialized objects can then be rendered to standard formats such as JSON for use in an HTTP API.

https://youtu.be/PTZiDnuC86g