rest_framework (版本)

请求进来 封装request. 版本限制 认证 权限 节流
版本

self.version_param url中版本的key
self.default_version
self.is_allowed_version
都是写在配置文件中    如果是默认就是?version=

reverse

获取版本
print(request.version)

获取处理版本的对象
print(request.versioning_scheme)

REST_FRAMEWORK = {
    "DEFAULT_VERSION":'v1',
    "ALLOWED_VERSIONS": ['v1','v2'] ,
    "VERSION_PARAM":'version',
}

    URL中通过get的方式获取

        自定义
        from django.shortcuts import render,HttpResponse
        from rest_framework.views import APIView
        from rest_framework.request import Request
        # Create your views here.

        class ParamVersion(object):
            def determine_version(self, request, *args, **kwarags):
                version = request.query_params.get('version')
                return version

        class UsersView(APIView):
            versioning_class = ParamVersion
            def get(self,request, *args, **kwargs):
                # version = request._request.GET.get('version')
                # print(version)
                print(request.version)

                return HttpResponse('用户列表')

    在路径中传参

常用方式
views.py
from django.shortcuts import render,HttpResponse
from rest_framework.versioning import QueryParameterVersioning,URLPathVersioning
class UsersView(APIView):
    versioning_class = URLPathVersioning
    def get(self,request, *args, **kwargs):

        print(request.version)

        return HttpResponse('用户列表')

cmdb 下的 urls.py
from django.conf.urls import url,include
from cmdb import views
urlpatterns = [
    url(r'^(?P<version>[v1|v2]+)/users/$',views.UsersView.as_view())
]

全局使用时   推荐使用的方式
setting文件
REST_FRAMEWORK = {
    "DEFAULT_VERSIONING_CLASS":"rest_framework.versioning.URLPathVersioning"
    "DEFAULT_VERSION":'v1',
    "ALLOWED_VERSIONS": ['v1','v2'] ,
    "VERSION_PARAM":'version',
}

views.py文件
from django.shortcuts import render,HttpResponse
class UsersView(APIView):
    def get(self,request, *args, **kwargs):

        print(request.version)

        return HttpResponse('用户列表')

urls.py文件 cmdb下的
urlpatterns = [
    url(r'^(?P<version>[v1|v2]+)/users/$',views.UsersView.as_view())
]

总结：
    使用：
        配置文件：
        REST_FRAMEWORK = {
                        "DEFAULT_VERSIONING_CLASS":"rest_framework.versioning.URLPathVersioning"
                        "DEFAULT_VERSION":'v1',
                        "ALLOWED_VERSIONS": ['v1','v2'] ,
                        "VERSION_PARAM":'version',
                    }
        路由系统
        urlpatterns = [
                        url(r'^(?P<version>[v1|v2]+)/users/$',views.UsersView.as_view())
                    ]

        主路由
        from django.conf.urls import url,include
        urlpatterns = [
                        path('admin/', admin.site.urls),
                        url(r'^cmdb/',include('cmdb.urls'))
        ]

        视图中
        from django.shortcuts import render,HttpResponse
        from rest_framework.views import APIView
        
        from django.urls import reverse
        from rest_framework.request import Request
        # Create your views here.
        
        class UsersView(APIView):
            #反向生成URL
            def get(self,request, *args, **kwargs):
                #获取版本
                print(request.version)
                #获取处理版本的对象
                print(request.versioning_scheme)
                #通过rest_framework反向生成URL
                u1 = request.versioning_scheme.reverse(viewname='user',request=request)
                print(u1)
                #通过原生Django反向生成URL
                u2 = reverse(viewname='user',kwargs={'version':1})
                print(u2)
                return HttpResponse('用户列表')