Getting "AuthToken.user" must be a "User" instance. in django-rest-knox - django

Question

I am creating a login method using Django-rest-Knox. I have created a custom user in app using AbstractBaseUser.
This is my views.py
class LoginView(GenericAPIView):
serializer_class = LoginSerializer
def post(self, request, *args, **kwargs):
serializer = self.get_serializer(data=request.data) # Load request body to serializer
serializer.is_valid(raise_exception=True) # Validate data in serializer and raise an error if one is found
user = serializer.validated_data # Get the validated data from the serializer
token = AuthToken.objects.create(user)[1] # Create an Authentication Token for the user
return Response({
"user": UserSerializer(user, context=self.get_serializer_context()).data, # Get serialized User data
"token": token
})
Serializer.py
class LoginSerializer(serializers.Serializer):
username = serializers.CharField()
password = serializers.CharField()
# class Meta:
# model = User
# fields = ('username', 'password')
def Validate(self, data):
user = authenticate(**data)
if user:
return user
raise serializers.ValidationError("Incorrect Credentials")
This is my custom user model
class User(AbstractBaseUser):
_id = models.AutoField
email = models.EmailField(verbose_name='email', max_length=255, unique=True)
username = models.CharField(verbose_name='username', max_length = 100, unique=True)
name = models.CharField(max_length = 100)
date_joined = models.DateTimeField(verbose_name="date-joined", auto_now_add=True)
last_login = models.DateTimeField(verbose_name="last-login", auto_now=True)
category = models.CharField(max_length=50, default= "teacher")
is_admin = models.BooleanField(default=False)
is_staff = models.BooleanField(default=False)
is_superuser = models.BooleanField(default=False)
is_active = models.BooleanField(default=True)
is_teacher = models.BooleanField(default=False)
is_parent = models.BooleanField(default=False)
USERNAME_FIELD = 'username'
REQUIRED_FIELDS = ['email',]
objects = UserManager()
def __str__(self):
# return self.email
return self.username
def has_perm(self, perm, obj=None):
return self.is_admin
def has_module_perms(self, app_label):
return True
I am getting an Value error when submitting login as Cannot assign "OrderedDict([('username', 'api_test'), ('password', 'test#123')])": "AuthToken.user" must be a "User" instance.
I think somewhere Django/Knox is not able to get user and user.is_active in my LoginSerializer. I have initiated my user model from initial migrations.
Any help to resolve this issue would be great. Thanks.

Answer 1

In this part of your code :
return Response({
"user": UserSerializer(user, context=self.get_serializer_context()).data, # Get serialized User data
"token": token
})
You need to replace the token by an instance of the user on which this token belong so for example :
return Response({
"user": UserSerializer(user, context=self.get_serializer_context()).data, # Get serialized User data
"token": User.objects.get(token=token)
})