My code:

api/urls.py

from django.conf.urls import url
from api import views

urlpatterns = [
    url(r"^entries", views.EntryList.as_view(), name="api-entries-list"),
    url(r"^entries/(?P<pk>[0-9]+)/$", views.EntrySingle.as_view(), name="api-entry")
]

api/views.py

from django.shortcuts import render
from django.http import Http404

from blog.models import Entry
from api.serializers import EntrySerializer

from rest_framework.views import APIView
from rest_framework.response import Response
from rest_framework import status

# Create your views here.
class EntryList(APIView):
    def get(self, request, format=None):
        entries = Entry.objects.all()
        serializer = EntrySerializer(entries, many=True)
        return Response(serializer.data)

    def post(self, request, format=None):
        serializer = EntrySerializer(data=request.data)
        if serializer.is_valid():
            serializer.save()
            return Response(serializer.data, status=status.HTTP_201_CREATED)
        return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)

class EntrySingle(APIView):
    def get_object(self, pk):
        try:
            return Entry.objects.get(pk=pk)
        except Entry.DoesNotExist:
            raise Http404

    def get(self, request, pk, format=None):
        entry = self.get_object(pk)
        serializer = EntrySerializer(entry)
        return Response(serializer.data)

    def put(self, request, pk, format=None):
        entry = self.get_object(pk)
        serializer = EntrySerializer(entry, data=request.data)
        if serializer.is_valid():
            serializer.save()
            return Response(serializer.data)
        return Response(serializer.errors, status=HTTP_400_BAD_REQUEST)

    def delete(self, request, pk, format=None):
        entry = self.get_object(pk)
        entry.delete()
        return Response(status=HTTP_204_NO_CONTENT)

api/serializers.py

from blog.models import *
from cvitae.models import *
from activities.models import *

from rest_framework import serializers

class EntrySerializer(serializers.ModelSerializer):
    class Meta:
        model = Entry
        fields = ("title", "slug")

I have an app called blog which contains Entry models having title, content and slug in short. I wanted to use Django Rest Framework to get, put or delete my entries. The code is as above. When I trigger /api/entries, it is okay, it gives all Entry model instances in database.

[
    {
        "title": "And Maybe This is Another One",
        "slug": "and-maybe-this-is-another-one"
    },
    {
        "title": "Another Topic Here",
        "slug": "another-topic-here"
    },
    {
        "title": "An Example Title",
        "slug": "an-example-title"
    }
]

However, when I exactly want to have an Entry instance by a pk value, I still get the same output, which means I still get all objects. I don't know where I did wrong.

Environment

• django 1.9.5
• python 3.5.1
• djangorestframework 3.3.3