DRF 3.6: How to document input parameters in APIView (for automatic doc generation)?

Question

I'm struggling with DRF 3.6 auto-generated interactive documentation to provide input parameters to fill in interactive mode.

As a result, I get an empty windows for my POST request (which would require 3 parameters actually):

With Swagger, I could do it directly in docstring with some YAML. Now, after browsing DRF documentation, I can't find the way to do it.

class ActivateCustomerView(APIView):

    permission_classes = (AllowAny,)

    def post(self, request):
        """ View dedicated to activating a pre-recorded customer 
            # Should I add some parameters here?
        """

        serializer = ActivateCustomerSerializer(data=request.data)
        serializer.is_valid(raise_exception=True)
        # ...

Answer 1

I Got the answer from Tom Christie:

serializer_class by itself isn't enough - the view needs to implement get_serializer, see: https://github.com/encode/django-rest-framework/blob/master/rest_framework/schemas.py#L570

So in My case, adding this works well:

def get_serializer(self):
    return ActivateCustomerSerializer()