json 如何快速发送带有 BODY 的 POST 请求

How to send a POST request with BODY in swift

提问by Stranger B.

I'm trying to make a post request with a body in swift using Alamofire.

我正在尝试使用 Alamofire 快速发出带有正文的帖子请求。

my json body looks like :

我的json主体看起来像：

{
    "IdQuiz" : 102,
    "IdUser" : "iosclient",
    "User" : "iosclient",
    "List":[
        {
        "IdQuestion" : 5,
        "IdProposition": 2,
        "Time" : 32
        },
        {
        "IdQuestion" : 4,
        "IdProposition": 3,
        "Time" : 9
        }
    ]
}

I'm trying to make letlistwith NSDictionnary which look like :

我正在尝试letlist使用 NSDictionnary制作，它看起来像：

[[Time: 30, IdQuestion: 6510, idProposition: 10], [Time: 30, IdQuestion: 8284, idProposition: 10]]

and my request using Alamofire looks like :

我使用 Alamofire 的请求如下所示：

Alamofire.request(.POST, "http://myserver.com", parameters: ["IdQuiz":"102","IdUser":"iOSclient","User":"iOSClient","List":list ], encoding: .JSON)
            .response { request, response, data, error in
            let dataString = NSString(data: data!, encoding:NSUTF8StringEncoding)
                println(dataString)
        }

The request has an error and I believe the problem is with Dictionary list, cause if I make a request without the list it works fine, so any idea ?

请求有错误，我认为问题出在字典列表上，因为如果我在没有列表的情况下发出请求，它工作正常，所以知道吗？

---

---

I have tried the solution suggested but I'm facing the same problem :

我已经尝试了建议的解决方案，但我面临同样的问题：

 let json = ["List":list,"IdQuiz":"102","IdUser":"iOSclient","UserInformation":"iOSClient"]
        let data = NSJSONSerialization.dataWithJSONObject(json, options: NSJSONWritingOptions.PrettyPrinted,error:nil)
        let jsons = NSString(data: data!, encoding: NSUTF8StringEncoding)



    Alamofire.request(.POST, "http://myserver.com", parameters: [:], encoding: .Custom({
        (convertible, params) in
        var mutableRequest = convertible.URLRequest.copy() as! NSMutableURLRequest
        mutableRequest.HTTPBody = jsons!.dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: false)
        return (mutableRequest, nil)
    }))
        .response { request, response, data, error in
        let dataString = NSString(data: data!, encoding:NSUTF8StringEncoding)
           println(dataString)
    }

采纳答案by cnoon

You're close. The parameters dictionary formatting doesn't look correct. You should try the following:

你很接近。参数字典格式看起来不正确。您应该尝试以下操作：

let parameters: [String: AnyObject] = [
    "IdQuiz" : 102,
    "IdUser" : "iosclient",
    "User" : "iosclient",
    "List": [
        [
            "IdQuestion" : 5,
            "IdProposition": 2,
            "Time" : 32
        ],
        [
            "IdQuestion" : 4,
            "IdProposition": 3,
            "Time" : 9
        ]
    ]
]

Alamofire.request(.POST, "http://myserver.com", parameters: parameters, encoding: .JSON)
    .responseJSON { request, response, JSON, error in
        print(response)
        print(JSON)
        print(error)
    }

Hopefully that fixed your issue. If it doesn't, please reply and I'll adjust my answer accordingly.

希望这解决了您的问题。如果没有，请回复，我会相应地调整我的答案。

回答by Gianni Carlo

If you are using Alamofire v4.0+ then the accepted answer would look like this:

如果您使用的是 Alamofire v4.0+，那么接受的答案将如下所示：

let parameters: [String: Any] = [
    "IdQuiz" : 102,
    "IdUser" : "iosclient",
    "User" : "iosclient",
    "List": [
        [
            "IdQuestion" : 5,
            "IdProposition": 2,
            "Time" : 32
        ],
        [
            "IdQuestion" : 4,
            "IdProposition": 3,
            "Time" : 9
        ]
    ]
]

Alamofire.request("http://myserver.com", method: .post, parameters: parameters, encoding: JSONEncoding.default)
    .responseJSON { response in
        print(response)
    }

回答by Sea Coast of Tibet

I don't like any of the other answers so far (except perhaps the oneby SwiftDeveloper), because they either require you to deserialize your JSON, only for it to be serialized again, or care about the structure of the JSON itself.

我不喜欢任何其他的答案到目前为止（也许除了一个由SwiftDeveloper），因为他们要么要求你反序列化JSON，只为它再次被序列化，或关心的JSON本身的结构。

The correct answerhas been posted by afrodev in another question. You should go and upvote it.

afrodev 在另一个问题中发布了正确答案。你应该去投赞成票。

Below is just my adaption, with some minor changes (primarily explicit UTF-8 charset).

下面只是我的改编，有一些小的变化（主要是显式的 UTF-8 字符集）。

let urlString = "https://example.org/some/api"
let json = "{\"What\":\"Ever\"}"

let url = URL(string: urlString)!
let jsonData = json.data(using: .utf8, allowLossyConversion: false)!

var request = URLRequest(url: url)
request.httpMethod = HTTPMethod.post.rawValue
request.setValue("application/json; charset=UTF-8", forHTTPHeaderField: "Content-Type")
request.httpBody = jsonData

Alamofire.request(request).responseJSON {
    (response) in

    print(response)
}

回答by SwiftDeveloper

Xcode 8.X , Swift 3.X

Xcode 8.X , Swift 3.X

Easy Use;

易于使用；

    let params:NSMutableDictionary? = [
    "IdQuiz" : 102,
    "IdUser" : "iosclient",
    "User" : "iosclient",
    "List": [
        [
            "IdQuestion" : 5,
            "IdProposition": 2,
            "Time" : 32
        ],
        [
            "IdQuestion" : 4,
            "IdProposition": 3,
            "Time" : 9
        ]
    ]
];
            let ulr =  NSURL(string:"http://myserver.com" as String)
            let request = NSMutableURLRequest(url: ulr! as URL)
            request.httpMethod = "POST"
            request.setValue("application/json", forHTTPHeaderField: "Content-Type")
            let data = try! JSONSerialization.data(withJSONObject: params!, options: JSONSerialization.WritingOptions.prettyPrinted)

            let json = NSString(data: data, encoding: String.Encoding.utf8.rawValue)
            if let json = json {
                print(json)
            }
            request.httpBody = json!.data(using: String.Encoding.utf8.rawValue);


            Alamofire.request(request as! URLRequestConvertible)
                .responseJSON { response in
                    // do whatever you want here
                   print(response.request)  
                   print(response.response) 
                   print(response.data) 
                   print(response.result)

            }

回答by Mohammed Ali Khaled

If you are using swift4and Alamofire v4.0then the accepted code would look like this :

如果你正在使用swift4和Alamofire v4.0再接受的代码是这样的：

            let parameters: Parameters = [ "username" : email.text!, "password" : password.text! ]
            let urlString = "https://api.harridev.com/api/v1/login"
            let url = URL.init(string: urlString)
            Alamofire.request(url!, method: .put, parameters: parameters, encoding: JSONEncoding.default, headers: nil).responseJSON { response in
                 switch response.result
                {
                case .success(let json):
                    let jsonData = json as! Any
                    print(jsonData)
                case .failure(let error):
                    self.errorFailer(error: error)
                }
            }

回答by effeKtSVK

I've slightly edited SwiftDeveloper's answer, because it wasn't working for me. I added Alamofire validation as well.

我稍微编辑了SwiftDeveloper的答案，因为它对我不起作用。我还添加了 Alamofire 验证。

let body: NSMutableDictionary? = [
    "name": "\(nameLabel.text!)",
    "phone": "\(phoneLabel.text!))"]

let url = NSURL(string: "http://server.com" as String)
var request = URLRequest(url: url! as URL)
request.httpMethod = "POST"
request.setValue("application/json", forHTTPHeaderField: "Content-Type")
let data = try! JSONSerialization.data(withJSONObject: body!, options: JSONSerialization.WritingOptions.prettyPrinted)

let json = NSString(data: data, encoding: String.Encoding.utf8.rawValue)
if let json = json {
    print(json)
}
request.httpBody = json!.data(using: String.Encoding.utf8.rawValue)
let alamoRequest = Alamofire.request(request as URLRequestConvertible)
alamoRequest.validate(statusCode: 200..<300)
alamoRequest.responseString { response in

    switch response.result {
        case .success:
            ...
        case .failure(let error):
            ...
    }
}

回答by Hari R Krishna

Accepted answer inXcode 11- Swift 5- Alamofire 5.0

Xcode 11- Swift 5- Alamofire 5.0 中接受的答案

func postRequest() {
    let parameters: [String: Any] = [
        "IdQuiz" : 102,
        "IdUser" : "iosclient",
        "User" : "iosclient",
        "List": [
            [
                "IdQuestion" : 5,
                "IdProposition": 2,
                "Time" : 32
            ],
            [
                "IdQuestion" : 4,
                "IdProposition": 3,
                "Time" : 9
            ]
        ]
    ]
    AF.request("http://myserver.com", method:.post, parameters: parameters,encoding: JSONEncoding.default) .responseJSON { (response) in
        print(response)
    }
}

回答by Kiran Jasvanee

There are few changes I would like to notify. You can access request, JSON, error from response object from now on.

我想通知的更改很少。从现在开始，您可以从响应对象访问请求、JSON、错误。

        let urlstring = "Add URL String here"
        let parameters: [String: AnyObject] = [
            "IdQuiz" : 102,
            "IdUser" : "iosclient",
            "User" : "iosclient",
            "List": [
                [
                    "IdQuestion" : 5,
                    "IdProposition": 2,
                    "Time" : 32
                ],
                [
                    "IdQuestion" : 4,
                    "IdProposition": 3,
                    "Time" : 9
                ]
            ]
        ]

        Alamofire.request(.POST, urlstring, parameters: parameters, encoding: .JSON).responseJSON { response in
            print(response.request)  // original URL request
            print(response.response) // URL response
            print(response.data)     // server data
            print(response.result)   // result of response serialization

            if let JSON = response.result.value {
                print("JSON: \(JSON)")
            }
            response.result.error
        }

回答by vinodonkar

Here is how I created Http POST request with swift that needs parameters with Json encoding and with headers.

这是我如何使用 swift 创建 Http POST 请求，该请求需要带有 Json 编码和标头的参数。

Created API Client BKCAPIClient as a shared instance which will include all types of requests such as POST, GET, PUT, DELETE etc.

创建 API 客户端 BKCAPIClient 作为共享实例，其中将包含所有类型的请求，例如 POST、GET、PUT、DELETE 等。

func postRequest(url:String, params:Parameters?, headers:HTTPHeaders?, completion:@escaping (_ responseData:Result<Any>?, _ error:Error?)->Void){
    Alamofire.request(url, method: .post, parameters: params, encoding: JSONEncoding.default, headers: headers).responseJSON {
        response in
        guard response.result.isSuccess,
            (response.result.value != nil) else {
                debugPrint("Error while fetching data: \(String(describing: response.result.error))")
                completion(nil,response.result.error)
                return
        }
        completion(response.result,nil)
    }
}

Created Operation class that contains all data needed for particular request and also contains parsing logic inside completion block.

创建的操作类包含特定请求所需的所有数据，还包含完成块内的解析逻辑。

func requestAccountOperation(completion: @escaping ( (_ result:Any?, _ error:Error?) -> Void)){
    BKCApiClient.shared.postRequest(url: BKCConstants().bkcUrl, params: self.parametrs(), headers: self.headers()) { (result, error) in
        if(error != nil){
            //Parse and save to DB/Singletons.
        }
        completion(result, error)
    }
}
func parametrs()->Parameters{
    return ["userid”:”xnmtyrdx”,”bcode":"HDF"] as Parameters
}
func headers()->HTTPHeaders{
    return ["Authorization": "Basic bXl1c2VyOm15cGFzcw",
            "Content-Type": "application/json"] as HTTPHeaders
}

Call API In any View Controller where we need this data

在我们需要此数据的任何视图控制器中调用 API

func callToAPIOperation(){
let accOperation: AccountRequestOperation = AccountRequestOperation()
accOperation.requestAccountOperation{(result, error) in

}}

回答by Heshan Sandeepa

If anyone wondering how to proceed with models and stuff, see below

如果有人想知道如何处理模型和东西，请参见下文

        var itemArr: [Dictionary<String, String>] = []
        for model in models {
              let object = ["param1": model.param1,
                            "param2": model.param2]
              itemArr.append(object as! [String : String])
        }

        let param = ["field1": someValue,
                     "field2": someValue,
                     "field3": itemArr] as [String : Any]

        let url: URLConvertible = "http://------"

        Alamofire.request(url, method: .post, parameters: param, encoding: JSONEncoding.default)
            .responseJSON { response in
                self.isLoading = false
                switch response.result {
                case .success:
                    break
                case .failure:
                    break
                }
        }