# 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.
```python
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:
```python
from adrf.views import APIView
class AsyncAuthentication(BaseAuthentication):
async def authenticate(self, request) -> tuple[User, None]:
return user, None
class AsyncPermission:
async def has_permission(self, request, view) -> bool:
if random.random() < 0.7:
return False
return True
async def has_object_permission(self, request, view, obj):
if obj.user == request.user or request.user.is_superuser:
return True
return False
class AsyncThrottle(BaseThrottle):
async 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
```python
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
```python
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
```python
from adrf.serializers import Serializer
from rest_framework import serializers
class AsyncSerializer(Serializer):
username = serializers.CharField()
password = serializers.CharField()
age = serializers.IntegerField()
```
views.py
```python
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
```
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"description": "# Async Django REST framework\n\n**Async support for Django REST framework**\n\n# Requirements\n\n* Python 3.8+\n* Django 4.1+\n\nWe **highly recommend** and only officially support the latest patch release of\neach Python and Django series.\n\n# Installation\n\nInstall using `pip`...\n\n pip install adrf\n\nAdd `'adrf'` to your `INSTALLED_APPS` setting.\n```python\nINSTALLED_APPS = [\n ...\n 'adrf',\n]\n```\n\n# Examples\n\n# Async Views\n\nWhen using Django 4.1 and above, this package allows you to work with async class and function based views.\n\nFor 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.\n\nFor example:\n\n```python\nfrom adrf.views import APIView\n\nclass AsyncAuthentication(BaseAuthentication):\n async def authenticate(self, request) -> tuple[User, None]:\n return user, None\n\nclass AsyncPermission:\n async def has_permission(self, request, view) -> bool:\n if random.random() < 0.7:\n return False\n\n return True\n\n async def has_object_permission(self, request, view, obj):\n if obj.user == request.user or request.user.is_superuser:\n return True\n\n return False\n\nclass AsyncThrottle(BaseThrottle):\n async def allow_request(self, request, view) -> bool:\n if random.random() < 0.7:\n return False\n\n return True\n\n def wait(self):\n return 3\n\nclass AsyncView(APIView):\n authentication_classes = [AsyncAuthentication]\n permission_classes = [AsyncPermission]\n throttle_classes = [AsyncThrottle]\n\n async def get(self, request):\n return Response({\"message\": \"This is an async class based view.\"})\n\nfrom adrf.decorators import api_view\n\n@api_view(['GET'])\nasync def async_view(request):\n return Response({\"message\": \"This is an async function based view.\"})\n```\n# Async ViewSets\n\nFor viewsets, all handler methods must be async too.\n\nviews.py\n```python\nfrom django.contrib.auth import get_user_model\nfrom rest_framework.response import Response\n\nfrom adrf.viewsets import ViewSet\n\n\nUser = get_user_model()\n\n\nclass AsyncViewSet(ViewSet):\n\n async def list(self, request):\n return Response(\n {\"message\": \"This is the async `list` method of the viewset.\"}\n )\n\n async def retrieve(self, request, pk):\n user = await User.objects.filter(pk=pk).afirst()\n return Response({\"user_pk\": user and user.pk})\n\n```\n\nurls.py\n```python\nfrom django.urls import path, include\nfrom rest_framework import routers\n\nfrom . import views\n\nrouter = routers.DefaultRouter()\nrouter.register(r\"async_viewset\", views.AsyncViewSet, basename=\"async\")\n\nurlpatterns = [\n path(\"\", include(router.urls)),\n]\n\n```\n\n# Async Serializers\n\nserializers.py\n\n```python\nfrom adrf.serializers import Serializer\nfrom rest_framework import serializers\n\nclass AsyncSerializer(Serializer):\n username = serializers.CharField()\n password = serializers.CharField()\n age = serializers.IntegerField()\n```\n\nviews.py\n\n```python\nfrom . import serializers\nfrom adrf.views import APIView\n\nclass AsyncView(APIView):\n async def get(self, request):\n data = {\n \"username\": \"test\",\n \"password\": \"test\",\n \"age\": 10,\n }\n serializer = serializers.AsyncSerializer(data=data)\n serializer.is_valid()\n return await serializer.adata\n```\n",
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