python使用rest_framework写接口文件

rest_framework官方网站：http://www.django-rest-framework.org

1、安装

pip install djangorestframework

pip install markdown

pip install django-filter

2、在settings.py里添加配置

INSTALLED_APPS += ['rest_framework']

INSTALLED_APPS += ['rest_framework.authtoken'] //authtoken验证身份是否合法

INSTALLED_APPS += ['corsheaders'] //解决接口跨域问题

MIDDLEWARE = [
'django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'corsheaders.middleware.CorsMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware',

]

REST_FRAMEWORK = {
'DEFAULT_PERMISSION_CLASSES': (
'rest_framework.permissions.AllowAny',
),
'DEFAULT_AUTHENTICATION_CLASSES': (
'rest_framework.authentication.BasicAuthentication',
'rest_framework.authentication.SessionAuthentication',
'rest_framework.authentication.TokenAuthentication',
)
}

#跨域增加忽略
CORS_ALLOW_CREDENTIALS = True
CORS_ORIGIN_ALLOW_ALL = True
CORS_ORIGIN_WHITELIST = (
'*'
)

CORS_ALLOW_METHODS = (
'GET',
'OPTIONS'
'POST',
)

CORS_ALLOW_HEADERS = (
'*'

)

3、在views.py例子

from rest_framework.decorators import api_view, authentication_classes, permission_classes
from rest_framework.response import Response
from rest_framework.authentication import SessionAuthentication, TokenAuthentication

from rest_framework.permissions import IsAuthenticated

@api_view(['GET'])
@authentication_classes((TokenAuthentication,SessionAuthentication))
@permission_classes((IsAuthenticated,))
def index(request):
result = [request.GET.get('name')]

return Response(result)

4、解决djangorestframework跨域问题：

pip install django-cors-headers

然后将其添加到已安装的应用程序中：

INSTALLED_APPS  =（
     ... 
    ' corsheaders '，
     ... 
）

还需要添加一个中间件类来收听响应：

MIDDLEWARE  = [   ＃或MIDDLEWARE_CLASSES on Django <1.10 
    ... 
    ' corsheaders.middleware.CorsMiddleware '，
     ' django.middleware.common.CommonMiddleware '，
     ... 
]

CorsMiddleware应该放置得尽可能高，特别是在可以产生响应的任何中间件之前，如Django CommonMiddleware或Whitenoise WhiteNoiseMiddleware。如果以前没有，则无法将CORS头添加到这些响应中。

如果你使用CORS_REPLACE_HTTPS_REFERER，它应该放在Django之前CsrfViewMiddleware

# 允许所有主机

CORS_ORIGIN_ALLOW_ALL = True

参照： https://github.com/OttoYiu/django-cors-headers

python使用rest_framework写接口文件

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