views.py

from rest_framework import generics
from .models import Record
from django.http import Http404


class RecordRetrieveView(generics.RetrieveAPIView):
    serializer_class = RecordSerializer

    def get_object(self):
        try:
          return Record.objects.get(id=self.request.query_params['id'])
        except Record.DoesNotExist:
          raise Http404()