from rest_framework
class VisitThrottle(object):

      def __init__(self):

          self.history = None

      def allow_request(self,request,view):

          #获取用户IP

          #remote_addr = request.META.get('REMOTE_ADDR')
　　　　　　remote_addr = self.get_ident(request)
          ctime = time.time()

          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 history[-1] < ctime - 10: #限制10秒内访问3次

              history.pop()

           if length(history) < 3:

               history.insert(0,ctime)

               return True #return False 表示访问频率过高 限制访问

      def wait(self):  #等待多少秒 才能继续访问

          ctime = time.time()

          return  60 - (ctime - self.history[-1])

class OrderView(APIView):

    """

    订单业务

    """

    authentication_classes = []

    permission_classes = []

    throttle_classes = [VisitThrottle,]

    def get(self, request, *args, **kwargs):

        ret = {'code': 1000, 'msg': None, 'data': None}

        try:

            ret['data'] = ORDER_DICT

        except Exception as e:

            pass

        return JsonResponse(ret)

"DEFAULT_THROTTLE_CLASSES": ["api.utils.throttle.UserThrottle"],

"DEFAULT_THROTTLE_RATES": {

                  "keyword": '3/m',     #限制1分钟内访问3次

                  "keyword2": '10/m',  #限制1分钟内访问10次

},

from rest_framework.throttle import SimpleRateThrottle

class VisitThrottle(SimpleRateThrottle):

        scope = "keyword"

        def get_cache_key(self, request, view):

              return self.get_ident(request) 

class UserThrottle(SimpleRateThrottle):

        scope = "keyword2"

        def get_cache_key(self, request, view):

              return request.user.username 
#scope 传递参数给 settings里面的做限制参数使用

"DEFAULT_THROTTLE_RATES": {

                  "keyword": '3/m',     #限制1分钟内访问3次

                  "keyword2": '10/m',  #限制1分钟内访问10次

},