Added some logic

backend/apps/books/views.py

@@ -0,0 +1,19 @@
+from rest_framework import viewsets
+
+from apps.books.models import Book
+from apps.books.serializers import BookSerializer
+from rest_framework import viewsets 
+from rest_framework.permissions import IsAuthenticated
+from rest_framework_simplejwt.authentication import JWTAuthentication
+
+class BooksViewSet(viewsets.ModelViewSet):
+    queryset = Book.objects.prefetch_related("authors")
+    serializer_class = BookSerializer 
+
+    authentication_classes = [JWTAuthentication]
+    permission_classes = [IsAuthenticated]
+
+    def get_queryset(self):
+        return self.queryset.filter(
+            shelf__user_id=self.request.user.pk
+        )