old_contents: from rest_framework import generics, permissions, status
  from rest_framework.response import Response
  from social_django.utils import load_backend, load_strategy
  
  from djoser.conf import settings
  from djoser.social.serializers import ProviderAuthSerializer
  
  
  class ProviderAuthView(generics.CreateAPIView):
      permission_classes = [permissions.AllowAny]
      serializer_class = ProviderAuthSerializer
  
      def get(self, request, *args, **kwargs):
          redirect_uri = request.GET.get("redirect_uri")
          if redirect_uri not in settings.SOCIAL_AUTH_ALLOWED_REDIRECT_URIS:
              return Response(status=status.HTTP_400_BAD_REQUEST)
          strategy = load_strategy(request)
          strategy.session_set("redirect_uri", redirect_uri)
  
          backend_name = self.kwargs["provider"]
          backend = load_backend(strategy, backend_name, redirect_uri=redirect_uri)
  
          authorization_url = backend.auth_url()
          return Response(data={"authorization_url": authorization_url})
  
new_contents: from rest_framework import generics, permissions, status
  from rest_framework.response import Response
  from social_django.utils import load_backend, load_strategy
  
  from djoser.conf import settings
  from djoser.social.serializers import ProviderAuthSerializer
  
  
  class ProviderAuthView(generics.CreateAPIView):
      permission_classes = [permissions.AllowAny]
      serializer_class = ProviderAuthSerializer
  
      def get(self, request, *args, **kwargs):
          redirect_uri = request.GET.get("redirect_uri")
          if redirect_uri not in settings.SOCIAL_AUTH_ALLOWED_REDIRECT_URIS:
              return Response("Missing SOCIAL_AUTH_ALLOWED_REDIRECT_URIS", status=status.HTTP_400_BAD_REQUEST)
          strategy = load_strategy(request)
          strategy.session_set("redirect_uri", redirect_uri)
  
          backend_name = self.kwargs["provider"]
          backend = load_backend(strategy, backend_name, redirect_uri=redirect_uri)
  
          authorization_url = backend.auth_url()
          return Response(data={"authorization_url": authorization_url})
  
subject: Fix for Friendly tips when Missing SOCIAL_AUTH_ALLOWED_REDIRECT_URIS