swift - 如何在响应闭包中访问 Alamofire 请求参数？

Question

我正在使用 Swift 2.0 和 Alamofire 3 开发一个小项目。我需要发送到服务器的参数很少。

var myParameters = [
            "myObjectName":"FooBar",
            "myObjectId":123456
        ]

要发送数据，我有一个用 Alamofire 编写的基本请求

let myRequest = Alamofire.request(.POST, MY_SERVICE_URL, parameters: myParameters as! [String : AnyObject], encoding: .JSON)

我收到这样的回复:

            myRequest.response { myRequest, myResponse, myData, myError in

            /*
            Here I would like to access myParameters, simply to double-check the ID of the data that I have sent out with myRequest.
            */
            print("I'm Done with sending Object number \(myObjectId).")
        }

有什么简单的方法可以将 myObjectId 传递给响应闭包吗？或者以任何其他方式访问它？

Answer 1

您可以像这样检索参数:

let request = Alamofire.request(.POST, "", parameters: parameters, encoding: .JSON, headers: nil)

request.response { (request, response, data, error) -> Void in
    guard let httpBody = request?.HTTPBody else { return }
    do {
        if let jsonParams = try NSJSONSerialization.JSONObjectWithData(httpBody, options: []) as? [String: AnyObject] {
            if let objectId = jsonParams["myObjectId"] {
                print(objectId)
            }
        }
    } catch {
        print(error)
    }
}