Ответ 1

Вы можете попробовать использовать NSDictionary для параметров. Следующие будут правильно отправлять параметры на сервер JSON.

NSError *error;

NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration defaultSessionConfiguration];
NSURLSession *session = [NSURLSession sessionWithConfiguration:configuration delegate:self delegateQueue:nil];
NSURL *url = [NSURL URLWithString:@"[JSON SERVER"];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url
                                                       cachePolicy:NSURLRequestUseProtocolCachePolicy
                                                   timeoutInterval:60.0];

[request addValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
[request addValue:@"application/json" forHTTPHeaderField:@"Accept"];

[request setHTTPMethod:@"POST"];
NSDictionary *mapData = [[NSDictionary alloc] initWithObjectsAndKeys: @"TEST IOS", @"name",
                     @"IOS TYPE", @"typemap",
                     nil];
NSData *postData = [NSJSONSerialization dataWithJSONObject:mapData options:0 error:&error];
[request setHTTPBody:postData];


NSURLSessionDataTask *postDataTask = [session dataTaskWithRequest:request completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {

}];

[postDataTask resume];

Надеюсь, что это поможет (я пытаюсь разобраться с проблемой аутентификации CSRF с указанным выше, но он отправляет параметры в NSDictionary).

Ответ 2

Мотивация

Иногда я получаю некоторые ошибки, когда вы хотите передать httpBody сериализованному в Data из Dictionary, что в большинстве случаев связано с неправильной кодировкой или искаженными данными из-за не NSCoding соответствующие объекты в Dictionary.

Решение

В зависимости от ваших требований одним простым решением было бы создать String вместо Dictionary и преобразовать его в Data. У вас есть примеры кода ниже, написанные на Objective-C и Swift 3.0.

Objective-C

// Create the URLSession on the default configuration
NSURLSessionConfiguration *defaultSessionConfiguration = [NSURLSessionConfiguration defaultSessionConfiguration];
NSURLSession *defaultSession = [NSURLSession sessionWithConfiguration:defaultSessionConfiguration];

// Setup the request with URL
NSURL *url = [NSURL URLWithString:@"yourURL"];
NSMutableURLRequest *urlRequest = [NSMutableURLRequest requestWithURL:url];

// Convert POST string parameters to data using UTF8 Encoding
NSString *postParams = @"api_key=APIKEY&[email protected]&password=password";
NSData *postData = [postParams dataUsingEncoding:NSUTF8StringEncoding];

// Convert POST string parameters to data using UTF8 Encoding
[urlRequest setHTTPMethod:@"POST"];
[urlRequest setHTTPBody:postData];

// Create dataTask
NSURLSessionDataTask *dataTask = [defaultSession dataTaskWithRequest:urlRequest completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
    // Handle your response here
}];

// Fire the request
[dataTask resume];

Swift

// Create the URLSession on the default configuration
let defaultSessionConfiguration = URLSessionConfiguration.default
let defaultSession = URLSession(configuration: defaultSessionConfiguration)

// Setup the request with URL
let url = URL(string: "yourURL")
var urlRequest = URLRequest(url: url!)  // Note: This is a demo, that why I use implicitly unwrapped optional

// Convert POST string parameters to data using UTF8 Encoding
let postParams = "api_key=APIKEY&[email protected]&password=password"
let postData = postParams.data(using: .utf8)

// Set the httpMethod and assign httpBody
urlRequest.httpMethod = "POST"
urlRequest.httpBody = postData

// Create dataTask
let dataTask = defaultSession.dataTask(with: urlRequest) { (data, response, error) in
    // Handle your response here
}

// Fire the request
dataTask.resume()

Ответ 3

Вы можете использовать https://github.com/mxcl/OMGHTTPURLRQ

id config = [NSURLSessionConfiguration backgroundSessionConfigurationWithIdentifier:someID];
id session = [NSURLSession sessionWithConfiguration:config delegate:someObject delegateQueue:[NSOperationQueue new]];

OMGMultipartFormData *multipartFormData = [OMGMultipartFormData new];
[multipartFormData addFile:data1 parameterName:@"file1" filename:@"myimage1.png" contentType:@"image/png"];

NSURLRequest *rq = [OMGHTTPURLRQ POST:url:multipartFormData];

id path = [[NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) lastObject] stringByAppendingPathComponent:@"upload.NSData"];
[rq.HTTPBody writeToFile:path atomically:YES];

[[session uploadTaskWithRequest:rq fromFile:[NSURL fileURLWithPath:path]] resume];

Ответ 4

Если вы используете Swift, библиотека Just сделает это за вас. Пример из файла readme:

//  talk to registration end point
Just.post(
    "http://justiceleauge.org/member/register",
    data: ["username": "barryallen", "password":"ReverseF1ashSucks"],
    files: ["profile_photo": .URL(fileURLWithPath:"flash.jpeg", nil)]
) { (r)
    if (r.ok) { /* success! */ }
}

Ответ 5

Решение Swift 2.0 находится здесь:

 let urlStr = "http://url_to_manage_post_requests" 
 let url = NSURL(string: urlStr) 
 let request: NSMutableURLRequest =
 NSMutableURLRequest(URL: url!) request.HTTPMethod = "POST"
 request.setValue("application/json" forHTTPHeaderField:"Content-Type")
 request.timeoutInterval = 60.0 
 //additional headers
 request.setValue("deviceIDValue", forHTTPHeaderField:"DeviceId")

 let bodyStr = "string or data to add to body of request" 
 let bodyData = bodyStr.dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: true) request.HTTPBody = bodyData

 let session = NSURLSession.sharedSession()

 let task = session.dataTaskWithRequest(request){
             (data: NSData?, response: NSURLResponse?, error: NSError?) -> Void in

             if let httpResponse = response as? NSHTTPURLResponse {
                print("responseCode \(httpResponse.statusCode)")
             }

            if error != nil {

                 // You can handle error response here
                 print("\(error)")
             }else {
                  //Converting response to collection formate (array or dictionary)
                 do{
                     let jsonResult: AnyObject = (try NSJSONSerialization.JSONObjectWithData(data!, options:
 NSJSONReadingOptions.MutableContainers))

                     //success code
                 }catch{
                     //failure code
                 }
             }
         }

   task.resume()

Ответ 6

Код Teja Kumar Bethina изменился для Swift 3:

    let urlStr = "http://url_to_manage_post_requests"
    let url = URL(string: urlStr)

    var request: URLRequest = URLRequest(url: url!)

    request.httpMethod = "POST"

    request.setValue("application/json", forHTTPHeaderField:"Content-Type")
    request.timeoutInterval = 60.0

    //additional headers
    request.setValue("deviceIDValue", forHTTPHeaderField:"DeviceId")

    let bodyStr = "string or data to add to body of request"
    let bodyData = bodyStr.data(using: String.Encoding.utf8, allowLossyConversion: true)
    request.httpBody = bodyData

    let task = URLSession.shared.dataTask(with: request) {
        (data: Data?, response: URLResponse?, error: Error?) -> Void in

        if let httpResponse = response as? HTTPURLResponse {
            print("responseCode \(httpResponse.statusCode)")
        }

        if error != nil {

            // You can handle error response here
            print("\(error)")
        } else {
            //Converting response to collection formate (array or dictionary)
            do {
                let jsonResult = (try JSONSerialization.jsonObject(with: data!, options:
                    JSONSerialization.ReadingOptions.mutableContainers))

                //success code
            } catch {
                //failure code
            }
        }
    }

    task.resume()