Fastapi: Swagger default Enum missing and Optional field also

[raphaelauv]

SInce few days the default value provided for an ENUM is no more showing in the swagger

Before :

now:

@router.post('/a', response_model=Something)
async def endpoint_a(user: Something2,
                       keep_option: KeepOption = KeepOption.KEEP_NO_MISCLASSIFIED_ADS,
                       limit: Optional[int] = None):

Also a field limit:Optional[int] = None is not considered optional in the swagger

It's maybe only related to swagger-ui , do you have any idee ? thank you

[Gatux]

The problem seems to be in pydantic : https://github.com/samuelcolvin/pydantic/pull/1749

[PrettyWood]

Exactly
It seems to be due to a change of enum schema, which came in pydantic v1.6.
@mostaphaRoudsari made a very good statement in https://github.com/samuelcolvin/pydantic/pull/1749#issuecomment-662728965 to fix the doc generation.

[raphaelauv]

correct with pydantic 1.7