Skip to content

em1208/adrf

Repository files navigation

Async Django REST framework

Async support for Django REST framework

Requirements

  • Python 3.8+
  • Django 4.1+

We highly recommend and only officially support the latest patch release of each Python and Django series.

Installation

Install using pip...

pip install adrf

Add 'adrf' to your INSTALLED_APPS setting.

INSTALLED_APPS = [
    ...
    'adrf',
]

Examples

Async Views

When using Django 4.1 and above, this package allows you to work with async class and function based views.

For class based views, all handler methods must be async, otherwise Django will raise an exception. For function based views, the function itself must be async.

For example:

from adrf.views import APIView

class AsyncAuthentication(BaseAuthentication):
    async def authenticate(self, request) -> tuple[User, None]:
        return user, None

class AsyncPermission:
    def has_permission(self, request, view) -> bool:
        if random.random() < 0.7:
            return False

        return True

class AsyncThrottle(BaseThrottle):
    def allow_request(self, request, view) -> bool:
        if random.random() < 0.7:
            return False

        return True

    def wait(self):
        return 3

class AsyncView(APIView):
    authentication_classes = [AsyncAuthentication]
    permission_classes = [AsyncPermission]
    throttle_classes = [AsyncThrottle]

    async def get(self, request):
        return Response({"message": "This is an async class based view."})

from adrf.decorators import api_view

@api_view(['GET'])
async def async_view(request):
    return Response({"message": "This is an async function based view."})

Async ViewSets

For viewsets, all handler methods must be async too.

views.py

from django.contrib.auth import get_user_model
from rest_framework.response import Response

from adrf.viewsets import ViewSet


User = get_user_model()


class AsyncViewSet(ViewSet):

    async def list(self, request):
        return Response(
            {"message": "This is the async `list` method of the viewset."}
        )

    async def retrieve(self, request, pk):
        user = await User.objects.filter(pk=pk).afirst()
        return Response({"user_pk": user and user.pk})

urls.py

from django.urls import path, include
from rest_framework import routers

from . import views

router = routers.DefaultRouter()
router.register(r"async_viewset", views.AsyncViewSet, basename="async")

urlpatterns = [
    path("", include(router.urls)),
]

Async Serializers

serializers.py

from adrf.serializers import Serializer
from rest_framework import serializers

class AsyncSerializer(Serializer):
    username = serializers.CharField()
    password = serializers.CharField()
    age = serializers.IntegerField()

views.py

from . import serializers
from adrf.views import APIView

class AsyncView(APIView):
    async def get(self, request):
        data = {
            "username": "test",
            "password": "test",
            "age": 10,
        }
        serializer = serializers.AsyncSerializer(data=data)
        serializer.is_valid()
        return await serializer.adata