When I log out, I find this error "detail": "Authentication credentials were not provided."

Question

I am using django-rest-knox, when I logout using knox_views.LogoutAllView.as_view(), it gives me this error:

"detail": "Authentication credentials were not provided." 

Note: I am using a custom user model(AbstarctUser and BaseUserManager)

Here is serializers.py:

class UserSerializer(serializers.ModelSerializer):
    class Meta:
        model = User
        fields = ('id', 'username', 'email','birth_date','first_name','last_name')

# there is a registerserializer too

class LoginSerializer(serializers.Serializer):
    email = serializers.EmailField()
    password = serializers.CharField()

    def validate(self, data):
        user = authenticate(**data)
        if user and user.is_active:
            return user
        raise serializers.ValidationError("Incorrect Credentials")

and here's views.py:

class LoginView(generics.GenericAPIView):
    serializer_class = LoginSerializer

    def post(self, request, *args, **kwargs):
        serializer = self.get_serializer(data=request.data)
        serializer.is_valid(raise_exception=True)
        user= serializer.validated_data
        return Response({
            "user": UserSerializer(user, context=self.get_serializer_context()).data,
            "token": AuthToken.objects.create(user)[1]
        })

class RegisterAPI(generics.GenericAPIView):
    serializer_class = RegisterSerializer

    def post(self, request, *args, **kwargs):
        serializer = self.get_serializer(data=request.data)
        serializer.is_valid(raise_exception=True)
        user = serializer.save()
        return Response({
        "user": UserSerializer(user, context=self.get_serializer_context()).data,
        "token": AuthToken.objects.create(user)[1]
        })

Answer 1

From the docs:

This view accepts only a post request with an empty body. It responds to Knox Token Authentication. On a successful request, the token used to authenticate, and all other tokens registered to the same User account, are deleted from the system and can no longer be used to authenticate.

This means you still need to use the token you generated upon authentication with the logout endpoint.

Answer 2

you have to explicitly override authentication_classes on your new logout view or call it from Django setting

class MyCustomLogoutView(LogoutView)
    authentication_classes = (Your custom Authentication,)

or

from rest_framework.settings import api_settings

class MyCustomLogoutView(LogoutView)
        authentication_classes = api_settings.DEFAULT_AUTHENTICATION_CLASSES

or access it from Django setting directly