Ios Alamofire）我希望始终处理新请求

（头） 嗨，我正在制作地图应用程序，显示一些信息

用户可以通过触摸移动地图位置，应用程序显示一些信息

当用户触摸完成时，应用程序通过Location从REST API请求信息。这个位置可以从不同的API获取

（正文） 当用户长距离移动地图时，会出现很多请求。这种情况使我的申请速度变慢

所以我想一直提出这个要求

在发生太多请求的情况下，我如何请求更新的信息

这是我的请求代码

我在等待你的帮助

代码）

请求位置

请求信息

实被调用函数

private func doReverseGeocoding(lat: Double, lng: Double, completionHandler: @escaping (Bool, Address?, String?) -> Void) {
    let id = HTTPHeader(name: "X-NCP-APIGW-API-KEY-ID", value:"sb10h4g44n")
    let key = HTTPHeader(name: "X-NCP-APIGW-API-KEY", value:"Czs7ZzPQHmgvPg0Y2cfMQEjxNg2WgOUB9LgS2uno")
    let headers: HTTPHeaders = HTTPHeaders([id, key])
    let urlString = "https://naveropenapi.apigw.ntruss.com/map-reversegeocode/v2/gc?request=coordsToaddr&coords=\(lng),\(lat)&sourcecrs=epsg:4326&output=json&orders=admcode,addr"

    guard let url = URL(string: generateURL(string: urlString)) else {
      return
    }

    AF.request(url, method: .get, headers: headers)
      .validate()
      .responseDecodable(of: NaverRoot.self) { (response) in
        guard let root = response.value else {
          completionHandler(false, nil, "[NAVER API] 리버스 지오코딩 정보를 불러올 수 없습니다. : \(response)")
          self.camera.setAddress(address: Address())
          return
        }

        if root.status.code == 3 {
          completionHandler(false, nil, "[NAVER API] 상세 주소 불러오기에 실패했습니다.")
          return
        }

        let region: Geo
        let landNumber: Land?

        if root.results.count == 2 {
          region = root.results[1].region
          landNumber = root.results[1].land
          self.currentAddress.setAddress(region: region, landNumber: landNumber)
        }
        else {
          region = root.results[0].region
          self.currentAddress.setAddress(region: region, landNumber: nil)

        }

        let address = self.camera.address

        if address.cityTown == self.currentAddress.cityTown {
          completionHandler(false, nil, nil)
        }
        else {
          self.camera.setAddress(address: self.currentAddress)
          completionHandler(true, self.currentAddress, "[NAVER API] 리버스 지오코딩 성공")
        }
    }
  }

private func fetchStores(code locationCode: String,
                           address: String) {
    self.loadingIndicator.isHidden = false

    let startTime = CFAbsoluteTimeGetCurrent()

    let urlString = "https://openapi.gg.go.kr/RegionMnyFacltStus?KEY=\(KKD_APIKey)&TYPE=json&pSize=\(numberOfData)&REFINE_LOTNO_ADDR=\(address)"
    let url = generateURL(string: urlString)

    killAllRequest()

    AF.request(url)
      .validate()
      .responseDecodable(of: StoreRoot.self) { (response) in
        print("run time: \(CFAbsoluteTimeGetCurrent() - startTime)")
        guard let root = response.value else {
          print("[GG API]데이터를 불러올수 없습니다.: \(response)")
          print("[GG API]실패파라미터: \(address)")
          self.loadingIndicator.isHidden = true
          return
        }

        guard let head = root.RegionMnyFacltStus[0].head else {
          print("[GO API]요청 해더 디코딩에 실패했습니다.")
          return
        }

        guard let count = head[0].count else {
          print("[GG API]불러온 가맹점 카운팅에 실패했습니다.")
          return
        }

        guard let stores = root.RegionMnyFacltStus[1].row else {
          print("[GG API]가맹점 정보를 불러오는데 실패했습니다.")
          return
        }

        print("[GG API] \(address)지역에 대한 \(count)개의 가맹점 정보를 불러오는데 성공했습니다.")
        // 캐싱을 위한 저장.
        self.map.stores = stores
        self.loadingIndicator.isHidden = true

        // 마커 설정.
        self.setMarkers()

    }
  }

 private func findStoreFollowCameraCoord(location: CLLocation) {
    doReverseGeocoding(lat: location.coordinate.latitude, lng: location.coordinate.longitude) { (isSuccess, address, message) in
      guard let message = message else { return }
      print(message)

      if isSuccess {
        guard let address = address else { return }
        let currentCityCode = CityCode.shared.returnCityCode(city: address.city)
        self.fetchStores(code: currentCityCode, address: address.cityTown)
      }
      else {
        return
      }
    }
  }