добавил метод по извлечению ограничения

server/proj/audio/views.py

@@ -20,6 +20,14 @@ class SongViewSet(ViewSet):
         serializer = SongSerializer(queryset, many=True)
         return Response(serializer.data)
     
+    def get_permissions(self):
+        try:
+            # return permission_classes depending on `action` 
+            return [permission() for permission in self.permission_classes_by_action[self.action]]
+        except KeyError: 
+            # action is not set return default permission_classes
+            return [permission() for permission in self.permission_classes]
+    
     def retrieve(self, request, pk=None):
         user_pk = request.user.pk
         song_obj = get_object_or_404(Song, azura_id=pk).pk