TypeError: `@validator(..., each_item=True)` cannot be applied to fields with a schema of json-or-python

[genievn]

Hi, I'm getting this error when running the example https://indominusbyte.github.io/fastapi-jwt-auth/usage/basic/

Traceback (most recent call last):
  File "/Users/kang/Dev/fastapi-jwt-test/main.py", line 3, in <module>
    from fastapi_jwt_auth import AuthJWT
  File "/Users/kang/Dev/fastapi-jwt-test/.venv/lib/python3.10/site-packages/fastapi_jwt_auth/__init__.py", line 5, in <module>
    from .auth_jwt import AuthJWT
  File "/Users/kang/Dev/fastapi-jwt-test/.venv/lib/python3.10/site-packages/fastapi_jwt_auth/auth_jwt.py", line 6, in <module>
    from fastapi_jwt_auth.auth_config import AuthConfig
  File "/Users/kang/Dev/fastapi-jwt-test/.venv/lib/python3.10/site-packages/fastapi_jwt_auth/auth_config.py", line 1, in <module>
    from fastapi_jwt_auth.config import LoadConfig
  File "/Users/kang/Dev/fastapi-jwt-test/.venv/lib/python3.10/site-packages/fastapi_jwt_auth/config.py", line 11, in <module>
    class LoadConfig(BaseModel):
  File "/Users/kang/Dev/fastapi-jwt-test/.venv/lib/python3.10/site-packages/pydantic/_internal/_model_construction.py", line 172, in __new__
    complete_model_class(
  File "/Users/kang/Dev/fastapi-jwt-test/.venv/lib/python3.10/site-packages/pydantic/_internal/_model_construction.py", line 420, in complete_model_class
    schema = cls.__get_pydantic_core_schema__(cls, handler)
  File "/Users/kang/Dev/fastapi-jwt-test/.venv/lib/python3.10/site-packages/pydantic/main.py", line 533, in __get_pydantic_core_schema__
    return __handler(__source)
  File "/Users/kang/Dev/fastapi-jwt-test/.venv/lib/python3.10/site-packages/pydantic/_internal/_schema_generation_shared.py", line 82, in __call__
    schema = self._handler(__source_type)
  File "/Users/kang/Dev/fastapi-jwt-test/.venv/lib/python3.10/site-packages/pydantic/_internal/_generate_schema.py", line 266, in generate_schema
    return self._generate_schema_for_type(
  File "/Users/kang/Dev/fastapi-jwt-test/.venv/lib/python3.10/site-packages/pydantic/_internal/_generate_schema.py", line 287, in _generate_schema_for_type
    schema = self._generate_schema(obj)
  File "/Users/kang/Dev/fastapi-jwt-test/.venv/lib/python3.10/site-packages/pydantic/_internal/_generate_schema.py", line 477, in _generate_schema
    return self._model_schema(obj)
  File "/Users/kang/Dev/fastapi-jwt-test/.venv/lib/python3.10/site-packages/pydantic/_internal/_generate_schema.py", line 353, in _model_schema
    {k: self._generate_md_field_schema(k, v, decorators) for k, v in fields.items()},
  File "/Users/kang/Dev/fastapi-jwt-test/.venv/lib/python3.10/site-packages/pydantic/_internal/_generate_schema.py", line 353, in <dictcomp>
    {k: self._generate_md_field_schema(k, v, decorators) for k, v in fields.items()},
  File "/Users/kang/Dev/fastapi-jwt-test/.venv/lib/python3.10/site-packages/pydantic/_internal/_generate_schema.py", line 618, in _generate_md_field_schema
    common_field = self._common_field_schema(name, field_info, decorators)
  File "/Users/kang/Dev/fastapi-jwt-test/.venv/lib/python3.10/site-packages/pydantic/_internal/_generate_schema.py", line 674, in _common_field_schema
    schema = apply_each_item_validators(schema, each_item_validators, name)
  File "/Users/kang/Dev/fastapi-jwt-test/.venv/lib/python3.10/site-packages/pydantic/_internal/_generate_schema.py", line 150, in apply_each_item_validators
    schema['schema'] = apply_each_item_validators(schema['schema'], each_item_validators, field_name)
  File "/Users/kang/Dev/fastapi-jwt-test/.venv/lib/python3.10/site-packages/pydantic/_internal/_generate_schema.py", line 165, in apply_each_item_validators
    raise TypeError(
TypeError: `@validator(..., each_item=True)` cannot be applied to fields with a schema of json-or-python

Please help. Thank you!

[alejorodriguez96]

Hello!

The same problem here when updating to fastapi==0.100.0 and pydantic==2.0.2.

[lbenno]

I get this error simply by importing fastapi_jwt_auth or any fastapi_jwt_auth Class. Even if the package/Class is not called.

fastapi==0.100.0
fastapi_jwt_auth==0.5.0
pydantic==2.0.2

[Brandl]

For me I could fix the issue by downgrading to:

fastapi==0.99.1
fastapi_jwt_auth==0.5.0
pydantic==1.10.11 

Since this repo has not seen any movement in two years, this might be the only solution available until a fork appears.

[subut0n]

For me I could fix the issue by downgrading to:

fastapi==0.99.1
fastapi_jwt_auth==0.5.0
pydantic==1.10.11 

Since this repo has not seen any movement in two years, this might be the only solution available until a fork appears.

Hey,
I am also blocked right now by this problem. I can't downgrade the packages for some project reasons. I think I will also need an alternative or build my own solution. Hope to see an update on this lol. If anyone has a solution for this, ping me please

[georg-mayer]

I get the very same error.

thanks for the workaround, which does the job for me for the moment.

[brouberol]

@georg-mayer If that can help, this PR shows how I migrated a project of mine from fastapi-jwt-auth to fastapi-jwt to circumvent this issue. With pydantic 2.0.0 being out and fastapi-jwt-auth not having been updated for the past 3 years, I think this might be a good way forward.

[madmanRE]

For me I could fix the issue by downgrading to:

fastapi==0.99.1
fastapi_jwt_auth==0.5.0
pydantic==1.10.11 

Since this repo has not seen any movement in two years, this might be the only solution available until a fork appears.

thx for solution!

[Wallfacer005CN]

Same issue

[chengdujin]

Any good replacement for fastapi-jwt-auth?

[thuyng-ing]

Any good replacement for fastapi-jwt-auth?

No, the last time, I used https://github.com/GlitchCorp/fastapi-another-jwt-auth as an alternative but seems like the maintainer abandoned it.