[Fixed]-Simple Filter in django rest framework

DRF-extensions has a feature called Nested routes that allows you to append route logic to ViewSets (which is your case). It looks like what you want and the simplest.

You need to create filtered query set. here in this example i have filtered comments by author id

views.py

class CommentFilter(generics.ListAPIView):
    serializer_class = CommentSerializer

    def get_queryset(self):
        """
        This view should return a list of all the comments for
        particular author by author portion of the URL.
        """
        username = self.kwargs['author_id']
        return Comment.objects.filter(author__id=author_id)

urls.py

from django.conf.urls import url, include
from rest_framework import routers
from . import views

router = routers.DefaultRouter()
router.register(r'comments', views.CommentViewSet)
router.register(r'comment_list/(?P<author_id>\d+)/?$', views.CommentFilter,base_name="comment_list")

Hope it works.

Nested URLs are unnecessarily difficult in DRF. As the issue that you linked hints, it’s simplest to just extract a query parameter:

class CommentViewSet(viewsets.ModelViewSet):
    serializer_class = ClubSerializer

    def get_queryset(self):
        queryset = Club.objects.all()
        author_id = self.request.query_params.get('author_id')

        if author_id is not None:
            queryset = queryset.filter(author_id=author_id)
        return queryset

You’d use this like your option 2 above:

api/comments?author_id=author_id