Django restframework, extra_kwargs not working

Question

I have a custom user model. I have created an api for user registration. Following is my serializer.

class UserSerializer(serializers.ModelSerializer):
    email = serializers.EmailField(
        required=True,
        validators=[
            UniqueValidator(queryset=get_user_model().objects.all())
        ]
    )
    password = serializers.CharField(min_length=8)

    class Meta:
        model = get_user_model()
        fields = ('email', 'password')
        extra_kwargs = {'password': {'write_only': True}, }

    def create(self, validated_data):
        email = validated_data.pop('email')
        password = validated_data.pop('password')
        user = get_user_model().objects.create_user(email, password, **validated_data)
        return user

Here is my view:

class Registration(generics.CreateAPIView):
    serializer_class = UserSerializer
    queryset = get_user_model().objects.all()

There are two inputs email and password. password field is given as write_only field. But after creating the user, the api returns the hashed password. How can I prevent the password being returned?

Answer 1

You don't need explicitly declare the field on the serializer if use extra_kwargs try just this:

class UserSerializer(serializers.ModelSerializer):
    email = serializers.EmailField(
        required=True,
        validators=[
            UniqueValidator(queryset=get_user_model().objects.all())
        ]
    )

    class Meta:
        model = get_user_model()
        fields = ('email', 'password')
        extra_kwargs = {'password': {'write_only': True, 'min_length': 8}}