feat: secured user data retrieval with Django IsAuthenticated permission

user_app/views.py

@@ -3,8 +3,11 @@ from rest_framework.response import Response
 from .models import User
 from .serializers import UserSerializer
 from .caching import get_cached_user, cache_user
+from rest_framework.permissions import IsAuthenticated
 
 class UserViewSet(viewsets.ModelViewSet):
+    permission_classes = [IsAuthenticated]
+    
     queryset = User.objects.all()
     serializer_class = UserSerializer