How can I access request object within a custom Serializer Field in the Django REST framework?

Question

Consider:

class CustomSerializerField(serializers.Field):

    def to_representation(self, obj):
       return obj

    def to_internal_value(self, data):
       # How can I access the request object here?
       return {}

And now the ModelSerializer

class SomeModelSerializer(serializers.ModelSerializer):
   some_field = CustomerSerializerField()

   class Meta:
       model = SomeModel
       fields = ('__all__', )

I have tried

self.request.user

Answer 1

DRF is passing the outer contexts to nested levels during the execution. In your case, the SomeModelSerializer class passes all the context it took (from the view, probably) to its fields and "nested serializers"

To access the request variable in CustomerSerializerField, just use,

user = self.context['request'].user

.