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Chapter11/grades_ms/grades/grades_svc/views.py

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+from rest_framework import viewsets, status
+from rest_framework.response import Response
+from .models import Grade
+from .serializers import GradeSerializer
+
+class GradeViewSet(viewsets.ViewSet):
+
+    def list(self, request):
+        grades_list = Grade.objects.all()
+        serializer = GradeSerializer(grades_list, many=True)
+        return Response(serializer.data)
+
+    def create(self, request):
+        serializer = GradeSerializer(data=request.data)
+        if serializer.is_valid():
+            serializer.save()  # save to db
+            return Response(serializer.data, status=status.HTTP_201_CREATED)
+        return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
+
+    def retrieve(self, request, id=None):
+        myclass = Grade.objects.get(grade_id= id)
+        serializer = GradeSerializer(myclass)
+        return Response(serializer.data)