Put multiple items in the basket,
        removing anything that already exists

def bulk_update(self, request):
        """Put multiple items in the basket,
        removing anything that already exists
        """
        # Delete everything in the basket
        bid = utils.destroy_basket(request)

        for item_data in request.data:
            item = BasketItem(basket_id=bid, **item_data)
            item.save()

        serializer = BasketItemSerializer(self.get_queryset(request), many=True)
        response = Response(data=serializer.data,
                            status=status.HTTP_200_OK)
        return response