MemoryError in django-rest-framework CreateAPIView due to unnecessary queries

Question

I want to create an object using the CreateAPIView from the django-rest-framework. When calling the view, I get a MemoryError. That's probably because the view tries to present all 350000 existing objects in the browseable response.

How should I prevent the view from performing the corresponding query? Defining a post or a get_queryset method does not help.

Philipp Zedler · Accepted Answer · 2014-05-27 16:36:19Z

1

I solved the problem by using the APIView instead of the CreateAPIView. Here's the class I wrote:

class VoteCreateAPIView(views.APIView):
    def post(self, request, *args, **kwargs):
        vote = request.POST.get('vote', '')
        # here some validation
        Vote.objects.create(
            user=request.user,
            vote=vote)
        return response.Response({'vote': vote}, status=status.HTTP_200_OK)

I would still be curious if there's a better way to do it.

edited May 27, 2014 at 16:36

answered Feb 13, 2014 at 16:53

Philipp Zedler

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2 Comments

gozzilli Over a year ago

Did you find the proper way to do this or why this happens at all in the end? Do I understand correctly that here you are basically inheriting from the more generic APIView and then implementing your own post manually?

Philipp Zedler Over a year ago

Yes. I did exactly what you say. And it was simple in the end. The reason for the problem was that the CreateAPIView by default creates a response which is huge if you have many objects. An alternative solution would be to inherit from the CreateAPIView and to modify the response and the query.

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