Failed to load API definition - /api/docs #66

jankrnavek · 2023-06-08T12:01:01Z

On /api/docs endpoint i get this html error.

Python version: 3.11.3
Django version: 4.2.2
Django-Ninja version: 0.22.1
Django-Ninja-Extra 0.18.9

With previous version everthing works fine.
(Django-Ninja version: 0.21.x, Django-Ninja-Extra 0.18.8)

Failed to load API definition.
Errors
Fetch error
Internal Server Error /api/openapi.json

The text was updated successfully, but these errors were encountered:

jankrnavek · 2023-06-08T16:30:01Z

The above problem is fixed, please update your package to support the latest django-ninja.
Thnak you.

eadwinCode · 2023-06-08T18:08:25Z

Awesome stuff

jankrnavek · 2023-06-08T22:46:04Z

Everything works alright.
Thank you.

jankrnavek · 2023-06-09T10:35:17Z

Hello @eadwinCode ,
one more note your django-ninja-jwt = "5.2.5" doens't work as well, "5.2.2" is OK

eadwinCode · 2023-06-09T11:07:46Z

@jankrnavek can you be more specific to what you mean by doesn't work?

jankrnavek · 2023-06-09T13:32:12Z

Poetry update output:

(mabb-py3.11) PS C:\git\mabb> poetry update
Updating dependencies
Resolving dependencies...

Package operations: 0 installs, 1 update, 3 removals

  • Removing dnspython (2.3.0)
  • Removing email-validator (2.0.0.post2)
  • Removing ninja-schema (0.13.0)
  • Updating django-ninja-jwt (5.2.2 -> 5.2.5)

Writing lock file

Errors in log after restarting Gunicorn:

Traceback (most recent call last):
  File "/home/webhosting/mabb/env/lib/python3.11/site-packages/django/template/base.py", line 890, in _resolve_lookup
    current = getattr(current, bit)
              ^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'NinjaJWTUserDefinedSettingsMapper' object has no attribute 'JSON_ENCODER'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/webhosting/mabb/env/lib/python3.11/site-packages/django/template/base.py", line 896, in _resolve_lookup
    current = current[int(bit)]
                      ^^^^^^^^
ValueError: invalid literal for int() with base 10: 'JSON_ENCODER'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/webhosting/mabb/env/lib/python3.11/site-packages/django/template/base.py", line 903, in _resolve_lookup
    raise VariableDoesNotExist(
django.template.base.VariableDoesNotExist: Failed lookup for key [JSON_ENCODER] in <ninja_jwt.settings.NinjaJWTUserDefinedSettingsMapper object at 0x7f3f39f94ad0>
Exception while resolving variable 'JSON_ENCODER' in template 'unknown'.
Traceback (most recent call last):
  File "/home/webhosting/mabb/env/lib/python3.11/site-packages/ninja/schema.py", line 54, in __getitem__
    item = getattr(self._obj, key)
           ^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'NinjaJWTUserDefinedSettingsMapper' object has no attribute 'JSON_ENCODER'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/webhosting/mabb/env/lib/python3.11/site-packages/django/template/base.py", line 880, in _resolve_lookup
    current = current[bit]
              ~~~~~~~^^^^^
TypeError: 'NinjaJWTUserDefinedSettingsMapper' object is not subscriptable

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/webhosting/mabb/env/lib/python3.11/site-packages/django/template/base.py", line 890, in _resolve_lookup
    current = getattr(current, bit)
              ^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'NinjaJWTUserDefinedSettingsMapper' object has no attribute 'JSON_ENCODER'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/webhosting/mabb/env/lib/python3.11/site-packages/django/template/base.py", line 896, in _resolve_lookup
    current = current[int(bit)]
                      ^^^^^^^^
ValueError: invalid literal for int() with base 10: 'JSON_ENCODER'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/webhosting/mabb/env/lib/python3.11/site-packages/django/template/base.py", line 903, in _resolve_lookup
    raise VariableDoesNotExist(
django.template.base.VariableDoesNotExist: Failed lookup for key [JSON_ENCODER] in <ninja_jwt.settings.NinjaJWTUserDefinedSettingsMapper object at 0x7f3f39f950d0>
Exception while resolving variable 'JSON_ENCODER' in template 'unknown'.
Traceback (most recent call last):
  File "/home/webhosting/mabb/env/lib/python3.11/site-packages/ninja/schema.py", line 54, in __getitem__
    item = getattr(self._obj, key)
           ^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'NinjaJWTUserDefinedSettingsMapper' object has no attribute 'JSON_ENCODER'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/webhosting/mabb/env/lib/python3.11/site-packages/django/template/base.py", line 880, in _resolve_lookup
    current = current[bit]
              ~~~~~~~^^^^^
TypeError: 'NinjaJWTUserDefinedSettingsMapper' object is not subscriptable

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/webhosting/mabb/env/lib/python3.11/site-packages/django/template/base.py", line 890, in _resolve_lookup
    current = getattr(current, bit)
              ^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'NinjaJWTUserDefinedSettingsMapper' object has no attribute 'JSON_ENCODER'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/webhosting/mabb/env/lib/python3.11/site-packages/django/template/base.py", line 896, in _resolve_lookup
    current = current[int(bit)]
                      ^^^^^^^^
ValueError: invalid literal for int() with base 10: 'JSON_ENCODER'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/webhosting/mabb/env/lib/python3.11/site-packages/django/template/base.py", line 903, in _resolve_lookup
    raise VariableDoesNotExist(
django.template.base.VariableDoesNotExist: Failed lookup for key [JSON_ENCODER] in <ninja_jwt.settings.NinjaJWTUserDefinedSettingsMapper object at 0x7f3f39f950d0>
Exception while resolving variable 'JSON_ENCODER' in template 'unknown'.
Traceback (most recent call last):
  File "/home/webhosting/mabb/env/lib/python3.11/site-packages/ninja/schema.py", line 54, in __getitem__
    item = getattr(self._obj, key)
           ^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'NinjaJWTUserDefinedSettingsMapper' object has no attribute 'JSON_ENCODER'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/webhosting/mabb/env/lib/python3.11/site-packages/django/template/base.py", line 880, in _resolve_lookup
    current = current[bit]
              ~~~~~~~^^^^^
TypeError: 'NinjaJWTUserDefinedSettingsMapper' object is not subscriptable

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/webhosting/mabb/env/lib/python3.11/site-packages/django/template/base.py", line 890, in _resolve_lookup
    current = getattr(current, bit)
              ^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'NinjaJWTUserDefinedSettingsMapper' object has no attribute 'JSON_ENCODER'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/webhosting/mabb/env/lib/python3.11/site-packages/django/template/base.py", line 896, in _resolve_lookup
    current = current[int(bit)]
                      ^^^^^^^^
ValueError: invalid literal for int() with base 10: 'JSON_ENCODER'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/webhosting/mabb/env/lib/python3.11/site-packages/django/template/base.py", line 903, in _resolve_lookup
    raise VariableDoesNotExist(
django.template.base.VariableDoesNotExist: Failed lookup for key [JSON_ENCODER] in <ninja_jwt.settings.NinjaJWTUserDefinedSettingsMapper object at 0x7f3f39f90250>
Exception while resolving variable 'JSON_ENCODER' in template 'unknown'.
Traceback (most recent call last):
  File "/home/webhosting/mabb/env/lib/python3.11/site-packages/ninja/schema.py", line 54, in __getitem__
    item = getattr(self._obj, key)
           ^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'NinjaJWTUserDefinedSettingsMapper' object has no attribute 'JSON_ENCODER'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/webhosting/mabb/env/lib/python3.11/site-packages/django/template/base.py", line 880, in _resolve_lookup
    current = current[bit]
              ~~~~~~~^^^^^
TypeError: 'NinjaJWTUserDefinedSettingsMapper' object is not subscriptable

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/webhosting/mabb/env/lib/python3.11/site-packages/django/template/base.py", line 890, in _resolve_lookup
    current = getattr(current, bit)
              ^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'NinjaJWTUserDefinedSettingsMapper' object has no attribute 'JSON_ENCODER'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/webhosting/mabb/env/lib/python3.11/site-packages/django/template/base.py", line 896, in _resolve_lookup
    current = current[int(bit)]
                      ^^^^^^^^
ValueError: invalid literal for int() with base 10: 'JSON_ENCODER'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/webhosting/mabb/env/lib/python3.11/site-packages/django/template/base.py", line 903, in _resolve_lookup
    raise VariableDoesNotExist(
django.template.base.VariableDoesNotExist: Failed lookup for key [JSON_ENCODER] in <ninja_jwt.settings.NinjaJWTUserDefinedSettingsMapper object at 0x7f3f39f90250>
Exception while resolving variable 'JSON_ENCODER' in template 'unknown'.
Traceback (most recent call last):
  File "/home/webhosting/mabb/env/lib/python3.11/site-packages/ninja/schema.py", line 54, in __getitem__
    item = getattr(self._obj, key)
           ^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'NinjaJWTUserDefinedSettingsMapper' object has no attribute 'JSON_ENCODER'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/webhosting/mabb/env/lib/python3.11/site-packages/django/template/base.py", line 880, in _resolve_lookup
    current = current[bit]
              ~~~~~~~^^^^^
TypeError: 'NinjaJWTUserDefinedSettingsMapper' object is not subscriptable

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/webhosting/mabb/env/lib/python3.11/site-packages/django/template/base.py", line 890, in _resolve_lookup
    current = getattr(current, bit)
              ^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'NinjaJWTUserDefinedSettingsMapper' object has no attribute 'JSON_ENCODER'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/webhosting/mabb/env/lib/python3.11/site-packages/django/template/base.py", line 896, in _resolve_lookup
    current = current[int(bit)]
                      ^^^^^^^^
ValueError: invalid literal for int() with base 10: 'JSON_ENCODER'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/webhosting/mabb/env/lib/python3.11/site-packages/django/template/base.py", line 903, in _resolve_lookup
    raise VariableDoesNotExist(
django.template.base.VariableDoesNotExist: Failed lookup for key [JSON_ENCODER] in <ninja_jwt.settings.NinjaJWTUserDefinedSettingsMapper object at 0x7f3f39f90250>
Exception while resolving variable 'JSON_ENCODER' in template 'unknown'.
Traceback (most recent call last):
  File "/home/webhosting/mabb/env/lib/python3.11/site-packages/ninja/schema.py", line 54, in __getitem__
    item = getattr(self._obj, key)
           ^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'NinjaJWTUserDefinedSettingsMapper' object has no attribute 'JSON_ENCODER'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/webhosting/mabb/env/lib/python3.11/site-packages/django/template/base.py", line 880, in _resolve_lookup
    current = current[bit]
              ~~~~~~~^^^^^
TypeError: 'NinjaJWTUserDefinedSettingsMapper' object is not subscriptable

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/webhosting/mabb/env/lib/python3.11/site-packages/django/template/base.py", line 890, in _resolve_lookup
    current = getattr(current, bit)
              ^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'NinjaJWTUserDefinedSettingsMapper' object has no attribute 'JSON_ENCODER'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/webhosting/mabb/env/lib/python3.11/site-packages/django/template/base.py", line 896, in _resolve_lookup
    current = current[int(bit)]
                      ^^^^^^^^
ValueError: invalid literal for int() with base 10: 'JSON_ENCODER'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/webhosting/mabb/env/lib/python3.11/site-packages/django/template/base.py", line 903, in _resolve_lookup
    raise VariableDoesNotExist(
django.template.base.VariableDoesNotExist: Failed lookup for key [JSON_ENCODER] in <ninja_jwt.settings.NinjaJWTUserDefinedSettingsMapper object at 0x7f3f39f90250>

eadwinCode · 2023-06-09T13:51:58Z

I will look into this... Can you also share your settings for NINJA_JWT ?

jankrnavek · 2023-06-09T16:30:50Z

NINJA_JWT = {
    "ACCESS_TOKEN_LIFETIME": timedelta(minutes=120),
    "REFRESH_TOKEN_LIFETIME": timedelta(days=1),
    "ROTATE_REFRESH_TOKENS": False,
    "BLACKLIST_AFTER_ROTATION": False,
    "UPDATE_LAST_LOGIN": False,
    "ALGORITHM": "HS256",
    "SIGNING_KEY": SECRET_KEY,
    "VERIFYING_KEY": None,
    "AUDIENCE": None,
    "ISSUER": None,
    "JWK_URL": None,
    "LEEWAY": 0,
    "USER_ID_FIELD": "id",
    "USER_ID_CLAIM": "user_id",
    "USER_AUTHENTICATION_RULE": "ninja_jwt.authentication.default_user_authentication_rule",
    "AUTH_TOKEN_CLASSES": ("ninja_jwt.tokens.AccessToken",),
    "TOKEN_TYPE_CLAIM": "token_type",
    "TOKEN_USER_CLASS": "ninja_jwt.models.TokenUser",
    "JTI_CLAIM": "jti",
    "SLIDING_TOKEN_REFRESH_EXP_CLAIM": "refresh_exp",
    "SLIDING_TOKEN_LIFETIME": timedelta(minutes=5),
    "SLIDING_TOKEN_REFRESH_LIFETIME": timedelta(days=1),
    # For Controller Schemas
    # FOR OBTAIN PAIR
    "TOKEN_OBTAIN_PAIR_INPUT_SCHEMA": "ninja_jwt.schema.TokenObtainPairInputSchema",
    "TOKEN_OBTAIN_PAIR_REFRESH_INPUT_SCHEMA": "ninja_jwt.schema.TokenRefreshInputSchema",
    # FOR SLIDING TOKEN
    "TOKEN_OBTAIN_SLIDING_INPUT_SCHEMA": "ninja_jwt.schema.TokenObtainSlidingInputSchema",
    "TOKEN_OBTAIN_SLIDING_REFRESH_INPUT_SCHEMA": "ninja_jwt.schema.TokenRefreshSlidingInputSchema",
    "TOKEN_BLACKLIST_INPUT_SCHEMA": "ninja_jwt.schema.TokenBlacklistInputSchema",
    "TOKEN_VERIFY_INPUT_SCHEMA": "ninja_jwt.schema.TokenVerifyInputSchema",
}

And my controller looks like:

@api_controller("/users", auth=JWTAuth(), permissions=[IsAuthenticated])
class UsersController:
     pass

eadwinCode · 2023-06-11T00:08:40Z

@jankrnavek Whats your pydantic version?

jankrnavek · 2023-06-11T09:22:22Z

C:\git\mabb> poetry show pydantic

 name         : pydantic                                                        
 version      : 1.10.9
 description  : Data validation and settings management using python type hints

dependencies
 - email-validator >=1.0.3
 - typing-extensions >=4.2.0

required by
 - django-ninja >=1.6,<2.0.0
 - ninja-schema *

eadwinCode · 2023-06-12T01:33:42Z

@jankrnavek I have tried to reproduce this error but its seems like its something specific to your project. Also I am a bit confused as to why a template VariableDoesNotExist exception is related to ninja_jwt settings.
NinjaJWTUserDefinedSettingsMapper is used in loading ninja_jwt settings with pydantic yet I don't see any errors from pydantic.

eadwinCode · 2023-06-12T01:39:05Z

Can you check in your project to see if your are using USER_SETTINGS from ninja_jwt anywhere? I am guessing your project is interacting with ninja_jwt USER_SETTINGS variable which is a NinjaJWTUserDefinedSettingsMapper object

jankrnavek · 2023-06-12T10:05:33Z

I am not aware of using explicitly USER_SETTINGS anywhere in my code.
I am using own user model. Can that be a source of issue?

class User(AbstractUser):
    uid = models.UUIDField(default=uuid4, editable=False, unique=True, db_index=True)

    USERNAME_FIELD = "username"
    REQUIRED_FIELDS = ["email"]

    def __str__(self) -> str:
        return f"{self.username} ({self.email})"

    class Meta:
        verbose_name = _("user")
        verbose_name_plural = _("users")
        ordering = ["-pk"]

eadwinCode · 2023-06-12T21:08:44Z

No thats not the problem.

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Failed to load API definition - /api/docs #66

Failed to load API definition - /api/docs #66

jankrnavek commented Jun 8, 2023

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Failed to load API definition - /api/docs #66

Failed to load API definition - /api/docs #66

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