A simple APIView

views.py

from rest_framework import status # provides identifiers for each status code
from rest_framework.response import Response # determines the correct content type to return
from rest_framework.views import APIView

from .models import Note
from .serializers import NoteSerializer


class NoteApi(APIView):
    # list or add Note instances

    # List
    def get(self, request, format=None):
        notes = Note.objects.all()
        serializer = NoteSerializer(notes, many=True)
        return Response(serializer.data)

    # Add
    def post(self, request, format=None):
        serializer = NoteSerializer(data=request.data)
        # verify that the data passed to the Serializer is valid
        if serializer.is_valid():
            serializer.save()
            return Response(serializer.data, status=status.HTTP_201_CREATED)
        else:
            return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)