python 之路，Django rest framework 初探

发布时间：2020-07-21 09:35:26 所属栏目：Python 来源：互联网

导读：Django rest framework介绍 Django REST framework is a powerful and flexible toolkit for building Web AP

Django rest framework介绍

Django REST framework is a powerful and flexible toolkit for building Web APIs.

Some reasons you might want to use REST framework:

Theis a huge usability win for your developers.
including packages forand.
that supports bothanddata sources.
Customizable all the way down - just useif you don't need the.
,and.
Used and trusted by internationally recognised companies including,,,and.

安装

REST framework requires the following:

Python (2.7,3.2,3.3,3.4,3.5,3.6)

Django (1.8,1.9,1.10,1.11)

The following packages are optional:

(1.32.0+) - Schema generation support.

(2.1.0+) - Markdown support for the browsable API.

(1.0.1+) - Filtering support.

- Improved HTML display for filtering.

(1.1.1+) - Object level permissions support.

Install using`pip`,including any optional packages you want...

...or clone the project from github.

Add`'rest_framework'`to your`INSTALLED_APPS`setting.

If you're intending to use the browsable API you'll probably also want to add REST framework's login and logout views. Add the following to your root`urls.py`file.

Note that the URL path can be whatever you want,but you must include`'rest_framework.urls'`with the`'rest_framework'`namespace. You may leave out the namespace in Django 1.9+,and REST framework will set it for you.

<h3 id="example">
<a class="toclink" href="http://www.django-rest-framework.org/#example">快速上手实例

Let's take a look at a quick example of using REST framework to build a simple model-backed API.

We'll create a read-write API for accessing information on the users of our project.

Any global settings for a REST framework API are kept in a single configuration dictionary namedREST_FRAMEWORK. Start off by adding the following to yoursettings.pymodule:

Don't forget to make sure you've also addedrest_frameworkto yourINSTALLED_APPS.

We're ready to create our API now. Here's our project's rooturls.pymodule:

Serializers define the API representation.

class UserSerializer(serializers.HyperlinkedModelSerializer):
class Meta:
model = User
fields = ('url','username','email','is_staff')

ViewSets define the view behavior.

class UserViewSet(viewsets.ModelViewSet):
queryset = User.objects.all()
serializer_class = UserSerializer

Routers provide an easy way of automatically determining the URL conf.

router = routers.DefaultRouter()
router.register(r'users',UserViewSet)

Wire up our API using automatic URL routing.

Additionally,we include login URLs for the browsable API.

urlpatterns = [
url(r'^',include(router.urls)),url(r'^api-auth/',namespace='rest_framework'))
]

You can now open the API in your browser at,and view your new 'users' API. If you use the login control in the top right corner you'll also be able to add,create and delete users from the system.

Django视图中使用rest

from django.http import HttpResponse,JsonResponse
from django.views.decorators.csrf import csrf_exempt
from rest_framework.renderers import JSONRenderer
from rest_framework.parsers import JSONParser
from rest_framework.decorators import api_view

from rest_framework import status
from rest_framework.response import Response

class EventLogSerializer(serializers.ModelSerializer):
class Meta:
model = models.EventLog
fields = ('id','user','name','event_type','detail','asset','date','memo')

@api_view(['GET','POST'])
def eventlog_list(request):
"""
List all snippets,or create a new snippet.
"""
if request.method == 'GET':
eventlogs = models.EventLog.objects.all()
serializer = EventLogSerializer(eventlogs,many=True)
return Response(serializer.data)

elif request.method == 'POST':
    print("request",request.data)
    serializer = EventLogSerializer(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)

@api_view(['GET','POST','PUT'])

@csrf_exempt
def eventlog_detail(request,pk):
"""
Retrieve,update or delete a code eventlog.
"""
try:
eventlog_obj = models.EventLog.objects.get(pk=pk)
except models.EventLog.DoesNotExist:
return HttpResponse(status=404)

if request.method == 'GET':
    serializer = EventLogSerializer(eventlog_obj)
    return JsonResponse(serializer.data)

elif request.method == 'PUT':
    print(request)
    data = JSONParser().parse(request)
    serializer = EventLogSerializer(eventlog_obj,data=data)
    if serializer.is_valid():
        serializer.save()
        return JsonResponse(serializer.data)
    return JsonResponse(serializer.errors,status=400)

elif request.method == 'DELETE':
    eventlog_obj.delete()
    return HttpResponse(status=204)

更多请看http://www.django-rest-framework.org/

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