xos/core/views/instances.py

from core.serializers import InstanceSerializer
from rest_framework import generics
from core.models import Instance

class InstanceList(generics.ListCreateAPIView):
    queryset = Instance.objects.all()
    serializer_class = InstanceSerializer

class InstanceDetail(generics.RetrieveUpdateDestroyAPIView):
    queryset = Instance.objects.all()
    serializer_class = InstanceSerializer