KeyError at "url" method

[Harrys Asimakopoulos]

Hello,

just got back after long time to DRF and im trying to implement login / signup api endpoint.

Signup serializer.py:

class UserCreateSerializer(ModelSerializer):
    class Meta:
        model = CustomUser
        fields = ('email', 'password', 'user_type')
        extra_kwargs = {"password":
                            {"write_only": True
                             },
                        }

        def create(self, validate_data):
            email = validate_data['email']
            password = validate_data['password']
            user_object = CustomUser(
                email=email,
            )
            user_object.set_password(password)
            user_object.save()
            return validate_data

Signup viewset.py

class UserCreateApiView(CreateAPIView):
    """
    API endpoint that creates a user
    """
    queryset = CustomUser.objects.all()
    serializer_class = UserCreateSerializer
    permission_classes = [AllowAny, ]

urls.py

path('auth/signup/', viewset.UserCreateApiView.as_view(), name='api-signup'),

Everything works fine and as expected, the problem is that the browsable api raise the exception :

Environment:

Request Method: GET

Request URL: http://127.0.0.1:8000/api/v1/auth/signup/

Django Version: 2.2.3

Python Version: 3.7.3

Installed Applications:

['widget_tweaks',

 'rest_framework',

 'jet.dashboard',

 'jet',

 'django.contrib.admin',

 'django.contrib.auth',

 'django.contrib.contenttypes',

 'django.contrib.sessions',

 'django.contrib.messages',

 'django.contrib.staticfiles',

 'apps.root',

 'apps.user',

 'apps.authentication',

 'apps.dash',

 'api.api_authentication']

Installed Middleware:

['django.middleware.security.SecurityMiddleware',

 'django.contrib.sessions.middleware.SessionMiddleware',

 'django.middleware.locale.LocaleMiddleware',

 'django.middleware.common.CommonMiddleware',

 'django.middleware.csrf.CsrfViewMiddleware',

 'django.contrib.auth.middleware.AuthenticationMiddleware',

 'django.contrib.messages.middleware.MessageMiddleware',

 'django.middleware.clickjacking.XFrameOptionsMiddleware',

 'BioActHerb.middleware.cookie_middleware.LanguageCookieMiddleware']

Traceback:

File "C:\Users\Harrys\Anaconda3\lib\site-packages\django\core\handlers\exception.py" in inner

  34.             response = get_response(request)

File "C:\Users\Harrys\Anaconda3\lib\site-packages\django\core\handlers\base.py" in _get_response

  115.                 response = self.process_exception_by_middleware(e, request)

File "C:\Users\Harrys\Anaconda3\lib\site-packages\django\core\handlers\base.py" in _get_response

  113.                 response = wrapped_callback(request, *callback_args, **callback_kwargs)

File "C:\Users\Harrys\Anaconda3\lib\site-packages\django\views\decorators\csrf.py" in wrapped_view

  54.         return view_func(*args, **kwargs)

File "C:\Users\Harrys\Anaconda3\lib\site-packages\django\views\generic\base.py" in view

  71.             return self.dispatch(request, *args, **kwargs)

File "C:\Users\Harrys\Anaconda3\lib\site-packages\rest_framework\views.py" in dispatch

  495.             response = self.handle_exception(exc)

File "C:\Users\Harrys\Anaconda3\lib\site-packages\rest_framework\views.py" in handle_exception

  455.             self.raise_uncaught_exception(exc)

File "C:\Users\Harrys\Anaconda3\lib\site-packages\rest_framework\views.py" in dispatch

  492.             response = handler(request, *args, **kwargs)

File "C:\Users\Harrys\Anaconda3\lib\site-packages\rest_framework\views.py" in http_method_not_allowed

  169.         raise exceptions.MethodNotAllowed(request.method)

File "C:\Users\Harrys\Anaconda3\lib\site-packages\rest_framework\exceptions.py" in __init__

  198.             detail = force_text(self.default_detail).format(method=method)

Exception Type: KeyError at /api/v1/auth/signup/

Exception Value: 'method"'

If i test the endpoint via POSTMAN it works fine for post method but for get method it returns the whole exception. The get method should just return "method not allowed".

Any idea what is happening?

Thank's in advance.

[Lunga Baliwe]

One thing that looks odd is that you are returning validated_data on your serializer instead of the user_object instance.

return validated_data should return user_object

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[Jason]

Are you running with DEBUG=True in settings? That’ll make Django return a full trace back on exceptions.

[Harrys Asimakopoulos]

Still doesn't works.

Thanks for the answer!