Some things to know about Django Rest Framework

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1. Django Rest Framework Tips and Tricks Xavier ORDOQUY @linovia_net
2. Freelance! (since 2004) Python Django! (Backend) Raven maintainer! (Sentry client) Former! PyGTK! contributor Various! pull requests irc: Linovia @linovia_net Expertise Dev
3. Reminder • It is Django ! ! • It is Python !
4. Fully featured • Serializers • ModelSerializers • Parsers • Renderers • Authentication • Permission • Throttling • Routers • Views • ViewSets • Filtering • Testing • Pagination
5. from rest_framework.decorators import api_view! ! @api_view(['GET'])! def hello_world(request):! return Response({"message": "Hello, world!"}) but loosely coupled Authentication Content negotiation Serializers Generic views
6. Customizable web interface
7. Debug toolbar
8. pre/post save class MyCreateView(CreateAPIView):! model = models.MyModel! serializer_class = serializers.MySerializer! ! def post_save(self, obj, created):! if created:! obj.reviewers = [user1, user2]!
9. Class based views class MyMixin(object):! model = models.MyModel! serializer_class = serializers.MySerializer! ! ! class MyCreateView(MyMixin, CreateAPIView):! pass! • MRO: mixins are on the left side
10. # views.py! class UserViewSet(viewsets.ModelViewSet):! queryset = User.objects.all()! serializer_class = UserSerializer! ! # urls.py! router = DefaultRouter()! router.register(r'users', views.UserViewSet)! ! urlpatterns = patterns('',! url(r'^', include(router.urls)),! )! Viewsets & routers Nice to get started but optional
11. Auth / Permissions • Auth are for knowing who you are ! • Permissions are to grant you access
12. Testing Utilities • APIRequestFactory + format ! • force_authenticate • APIClient response = self.client.get('/users/4/')! self.assertEqual(response.data,! {'id': 4, 'username': 'lauren'})!
13. Performances • Fast to prototype • Easy to tune • Django performance tips also applies !
14. Temps em ms 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 Full stack Serialisation Redis Content nego Middleware HttpResponse Database lookup Redis lookup Serialization Django request/response API view Response rendering
16. • Django Rest Framwork Optimization:
 http://dabapps.com/blog/api-performance-profiling-django-rest-framework/