Optional serializer field in Django Rest Framework

How can I set a serializer field to optional in Django REST Framework?

I have the following serializer:

class IdSerializer(serializers.Serializer):
    id = serializers.IntegerField(required=None)

required is set to None following the docs.

And my view:

class MyView(APIView):
    serializer_class = PostIdSerializer

    def post(self, request):
        serializer = self.serializer_class(data=request.data)
        if serializer.is_valid():
            post_id = serializer.validated_data.get("id")
        return Response()

**However, when I send a POST request to the endpoint, I get the error:

{
    "id": [
        "This field is required."
    ]
}

How can I allow no id to be sent?

>Solution :

The doc says required=False to have None values, not required=None.