Restframework 频率throttle组件实例-3

频率逻辑：

from rest_framework.throttling import BaseThrottle
import time

VISIT_RECORD={}

class VisitThrottle(BaseThrottle):

    def __int__(self):
        self.history =None

    def allow_request(self, request, view):
        """
        限制IP每分钟访问不能超过3次
        :param request:
        :param view:
        :return:
        """

        #确定访问IP
        remote_addr =request.META.get("REMOTE_ADDR")
        print(remote_addr)

        #获取当次访问时间
        ctime =time.time()

        #if 第一次访问
        if remote_addr not in VISIT_RECORD:
            VISIT_RECORD[remote_addr]= [ctime,]
            return True

        history =VISIT_RECORD.get(remote_addr)
        self.history =history

        while history and ctime -history[-1]> 60:
            history.pop()

        if len(history)<3:
            history.insert(0,ctime)
            return True

        else:
            return False

    def wait(self):
        #当前访问时间
        ctime =time.time()

        #访问时间历史记录self.history
        return  60-(ctime- self.history[-1])

应用频率逻辑

 

class BookView(APIView):
    authentication_classes = [UserAuth]
    permission_classes = [SVIPPermission]
    throttle_classes = [VisitThrottle]

    def get(self,request):
        """
        查看所有书籍
        :param request:
        :return:
        """
        book_list=Book.objects.all()
        serializer= BookSerializer(book_list,many=True)
        return Response(serializer.data)

    def post(self,request):
        """
        添加一条书籍
        :param request:
        :return:
        """
        serializer=BookSerializer(data=request.data,many=True)
        if serializer.is_valid():
            serializer.save()#create操作.
            return Response(serializer.data)
        else:
            return Response(serializer.errors)

class BookViewDetail(APIView):
    def get(self,request,pk):
        edit_book =Book.objects.get(pk=pk)
        serializer =BookSerializer(edit_book,many=False)
        return Response(serializer.data)
    def put(self,request,pk):
        edit_book=Book.objects.get(pk=pk)
        serializer =BookSerializer(data=request.data,instance=edit_book)
        if serializer.is_valid():
            serializer.save()
            return Response(serializer.data)
        else:
            return Response(serializer.errors)
    def delete(self,request,id):
        edit_obj =Book.objects.get(pk=id).delete()
        return Response("11")

全局应用逻辑

REST_FRAMEWORK={

'DEFAULT_AUTHENTICATION_CLASSES': (
  'app01.utils.auth_class.UserAuth',
),
'DEFAULT_PERMISSION_CLASSES': (
    'app01.utils.svippermission_class.SVIPPermission',
),
"DEFAULT_THROTTLE_CLASSES": (
    "app01.utils.throttle_class.VisitThrottle",
),

}

　　

频率设置的第二种方法：

视图逻辑

class VisitThrottle(SimpleRateThrottle):
    scope="visit_rate"

    def get_cache_key(self,request, view):

        return self.get_ident(request)

全局配置　　

REST_FRAMEWORK={

    "DEFAULT_THROTTLE_RATES": {
        "visit_rate": "10/m",
    },