Almofire 4.0包装类与实用方法有更好的方法..？

Question

我正在使用这个包装类作为网络的实用程序这是正确的或任何其他方式正确使用它与带有闭包的web webservices，因为我没有使用任何singelton或委托设计模式是否需要或如何和URL作为基础我正在连接基本网址？

class AFWrapper: NSObject {

    class func requestGETURL(_ strURL: String, params:[String : AnyObject]?, headers : [String : String]? ,success:@escaping (JSON) -> Void, failure:@escaping (NSError) -> Void) {
        guard !strURL.isEmpty else {
            return
        }

        let strURL = Constants.URLs.kBaseUrl + strURL

        Alamofire.request(strURL, method: .get, parameters: params,headers: headers).responseJSON { (responseObject) -> Void in
            if responseObject.result.isSuccess {
                let resJson = JSON(responseObject.result.value!)
                success(resJson)
            }
            if responseObject.result.isFailure {
                let error : NSError = responseObject.result.error! as NSError
                failure(error)
            }
        }
    }

    class func requestPOSTURL(_ strURL : String, params : [String : AnyObject]?, headers : [String : String]?, success:@escaping (JSON) -> Void, failure:@escaping (NSError) -> Void) {
        guard !strURL.isEmpty else {
            return
        }

        let strURL = Constants.URLs.kBaseUrl + strURL
        Alamofire.request(strURL, method: .post, parameters: params, encoding: JSONEncoding.default, headers: headers).responseJSON { (responseObject:DataResponse<Any>) in
            if responseObject.result.isSuccess {
                let resJson = JSON(responseObject.result.value!)
                success(resJson)
            }
            if responseObject.result.isFailure {
                let error : NSError = responseObject.result.error! as NSError
                failure(error)
            }
        }
    }

    class func uploadMultipartFormData(_ strURL : String, params : [String : AnyObject]?, imageDataArray: [Data],imageNamesArray: [String], headers : [String : String]?, success:@escaping (JSON) -> Void, failure:@escaping (NSError) -> Void) {
        Alamofire.upload(multipartFormData: { (MultipartFormData) in
            var secondCounter = 0
            for data in imageDataArray {
                print(imageDataArray[secondCounter])
                MultipartFormData.append(data, withName: imageNamesArray[secondCounter], fileName: imageNamesArray[secondCounter] + "myImage.png", mimeType: "image/png")

                MultipartFormData.append(data, withName: imageNamesArray[secondCounter], fileName: imageNamesArray[secondCounter] + "myImage.png", mimeType: "image/png")
                secondCounter = secondCounter + 1
            }

            let contentDict = params as? [String: String]
            for (key, value) in contentDict! {
                MultipartFormData.append(value.data(using: .utf8)!, withName: key)
            }
        }, to: strURL, method: .post, headers: nil, encodingCompletion: { (result) in
            switch result {
            case .success(let upload, _, _):
                upload.responseJSON(completionHandler: { (dataResponse) in
                    if dataResponse.result.error != nil {
                        failure(dataResponse.result.error as! NSError)
                    }
                    else {
                        print(dataResponse.result.value)
                    }
                })
            case .failure(let encodingError):
                failure(encodingError as NSError)
            }
        })
    }
}