миграция afnetworking 3.0: как опубликовать с заголовками и телом HTTP

Я пытаюсь сделать запрос POST, который имеет поля HTTPHeader и тело HTTP для API youtube.

ранее в версии 2.0 AFNetworking я делал это таким образом, который работал:

NSDictionary *parameters = @{@"snippet": @{@"textOriginal":self.commentToPost.text,@"parentId":self.commentReplyingTo.commentId}};

NSString *url = [NSString stringWithFormat:@"https://www.googleapis.com/youtube/v3/comments?part=snippet&access_token=%@",[[LoginSingleton sharedInstance] getaccesstoken]];

NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:url]];
[request setHTTPMethod:@"POST"];
[request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
NSError *error;
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:parameters
   options:0
     error:&error];
NSString *jsonString = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];

// And finally, add it to HTTP body and job done.
[request setHTTPBody:[jsonString dataUsingEncoding:NSUTF8StringEncoding]];



AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
manager.requestSerializer.timeoutInterval=[[[NSUserDefaults standardUserDefaults] valueForKey:@"timeoutInterval"] longValue];
manager.requestSerializer = [AFJSONRequestSerializer serializer];
AFHTTPRequestOperation *operation = [manager HTTPRequestOperationWithRequest:request progress:nil success:^(NSURLSessionTask *task, id responseObject) {
    NSLog(@"Reply JSON: %@", responseObject);


    }
} failure:^(NSURLSessionTask *operation, NSError *error) {
    NSLog(@"Error: %@, %@, %@, %@, %@", error, operation.responseObject, operation.responseData, operation.responseString, operation.request);

}];
[operation start];

документы миграции для версии 3.0 заменяет AFHTTPRequestOperationManager С AFHTTPSessionManager Однако я не могу найти HTTPRequestOperationWithRequest метод AFHTTPSessionManager.

Я попытался с помощью constructingBodyWithBlock но это не работает, возможно, потому, что я не делаю это правильно.

этот это то, что у меня до сих пор не работает:

NSDictionary *body = @{@"snippet": @{@"topLevelComment":@{@"snippet":@{@"textOriginal":self.commentToPost.text}},@"videoId":self.videoIdPostingOn}};

NSError *error;
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:body
   options:0
     error:&error];
NSString *jsonString = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];

AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
AFJSONRequestSerializer *serializer = [AFJSONRequestSerializer serializer];
serializer.timeoutInterval= [[[NSUserDefaults standardUserDefaults] valueForKey:@"timeoutInterval"] longValue];
[serializer setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
[serializer setValue:@"application/json" forHTTPHeaderField:@"Accept"];


[manager POST:[NSString stringWithFormat:@"https://www.googleapis.com/youtube/v3/commentThreads?part=snippet&access_token=%@",[[LoginSingleton sharedInstance] getaccesstoken]] parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData>  _Nonnull formData) {

    [formData appendPartWithHeaders:nil body:[jsonString dataUsingEncoding:NSUTF8StringEncoding]];

}  progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {
    NSLog(@"Reply JSON: %@", responseObject);

} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
    NSLog(@"Error: %@, %@, %@, %@, %@", error, operation.responseObject, operation.responseData, operation.responseString, operation.request);

}];

10 ответов


другой способ вызова метода POST с AFNetworking 3.0:

AFHTTPSessionManager *manager = [[AFHTTPSessionManager alloc]initWithSessionConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]];
manager.requestSerializer = [AFJSONRequestSerializer serializer];
[manager.requestSerializer setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];

[manager POST:url parameters:parametersDictionary progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {
        NSLog(@"success!");
    } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
        NSLog(@"error: %@", error);
    }];

надеюсь, что это помогает!


Я был в состоянии понять это сам.

вот решение.

во-первых, вам нужно создать NSMutableURLRequest С AFJSONRequestSerializer во-первых, где вы можете установить тип метода для POST.

по этой просьбе, вы получите setHTTPBody после того как вы установили свой HTTPHeaderFields. Обязательно установите тело после установки полей заголовка для content-type, иначе api выдаст ошибку 400.

затем на менеджере создайте dataTaskWithRequest используя вышеуказанные NSMutableURLRequest. Не забудьте resume dataTask в самом конце, иначе ничего не будет отправлено. Вот мой код решения, Надеюсь, кто-то сможет использовать это успешно:

NSDictionary *body = @{@"snippet": @{@"topLevelComment":@{@"snippet":@{@"textOriginal":self.commentToPost.text}},@"videoId":self.videoIdPostingOn}};
NSError *error;
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:body options:0 error:&error];
NSString *jsonString = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];

AFURLSessionManager *manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]];

NSMutableURLRequest *req = [[AFJSONRequestSerializer serializer] requestWithMethod:@"POST" URLString:[NSString stringWithFormat:@"https://www.googleapis.com/youtube/v3/commentThreads?part=snippet&access_token=%@",[[LoginSingleton sharedInstance] getaccesstoken]] parameters:nil error:nil];

req.timeoutInterval= [[[NSUserDefaults standardUserDefaults] valueForKey:@"timeoutInterval"] longValue];
[req setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
[req setValue:@"application/json" forHTTPHeaderField:@"Accept"];
[req setHTTPBody:[jsonString dataUsingEncoding:NSUTF8StringEncoding]];


[[manager dataTaskWithRequest:req completionHandler:^(NSURLResponse * _Nonnull response, id  _Nullable responseObject, NSError * _Nullable error) {

    if (!error) {
        NSLog(@"Reply JSON: %@", responseObject);

        if ([responseObject isKindOfClass:[NSDictionary class]]) {
              //blah blah
        }
    } else {
        NSLog(@"Error: %@, %@, %@", error, response, responseObject);
    }
}] resume];

 -(void)postRequest:(NSString *)urlStr parameters:(NSDictionary *)parametersDictionary completionHandler:(void (^)(NSString*, NSDictionary*))completionBlock{
        NSURL *URL = [NSURL URLWithString:urlStr];

        AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
        manager.responseSerializer = [AFHTTPResponseSerializer serializer];
        [manager POST:URL.absoluteString parameters:parametersDictionary progress:nil success:^(NSURLSessionDataTask *task, id responseObject) {
            NSError* error;
            NSDictionary* json = [NSJSONSerialization JSONObjectWithData:responseObject
                                                                 options:kNilOptions
                                                                   error:&error];

            completionBlock(@"Success",json);
        } failure:^(NSURLSessionDataTask *task, NSError *error) {
            NSLog(@"Error: %@", error);
            completionBlock(@"Error",nil);
        }];
    }

этот метод отлично работает для AFNetworking 3.0.


// for HTTTPBody with JSON 
[sessionManager.requestSerializer setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
[sessionManager.requestSerializer setQueryStringSerializationWithBlock:^NSString *(NSURLRequest *request, id parameters, NSError * __autoreleasing * error) {

    NSData *jsonData = [NSJSONSerialization dataWithJSONObject:parameters options:NSJSONWritingPrettyPrinted error:error];
    NSString *argString = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
    return argString;
}];

[sessionManager POST:urlString parameters:parameters progress:nil success:^(NSURLSessionDataTask *task, id responseObject) {

    if (completion) {
        completion(responseObject, nil);
    }

} failure:^(NSURLSessionDataTask *task, NSError *error) {

    if (completion) {
        NSData *errorData = [error.userInfo objectForKey:@"com.alamofire.serialization.response.error.data"];
        NSDictionary *responseErrorObject = [NSJSONSerialization JSONObjectWithData:errorData options:NSJSONReadingAllowFragments error:nil];
        completion(responseErrorObject, error);
    }
}];


// For HTTPBody with custom String format
[sessionManager.requestSerializer setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];
[sessionManager.requestSerializer setQueryStringSerializationWithBlock:^NSString *(NSURLRequest *request, id parameters, NSError * __autoreleasing * error) {

    NSString *argString = [self dictionaryToString:parameters];
    return argString;
}];

[sessionManager POST:urlString parameters:parameters progress:nil success:^(NSURLSessionDataTask *task, id responseObject) {

    if (completion) {
        completion(responseObject, nil);
    }

} failure:^(NSURLSessionDataTask *task, NSError *error) {

    if (completion) {
        NSData *errorData = [error.userInfo objectForKey:@"com.alamofire.serialization.response.error.data"];
        NSDictionary *responseErrorObject = [NSJSONSerialization JSONObjectWithData:errorData options:NSJSONReadingAllowFragments error:nil];
        completion(responseErrorObject, error);
    }
}];

используйте common NSObject метод класса для вызова Wenservices с AFNetworking 3.0 Это мой дубликат ответа, но это было обновлено с AFNetworking 3.0 Сначала сделайте NSObject Класс Webservice.h и Webservice.м

Webservice.h

@interface Webservice : NSObject

+  (void)requestPostUrl:(NSString *)strURL parameters:(NSDictionary *)dictParams success:(void (^)(NSDictionary *responce))success failure:(void (^)(NSError *error))failure;

@end

Webservice.м ваш nsobject.файл m выглядит так.(добавить две функции .м файл)

#import "Webservice.h"

#define kDefaultErrorCode 12345

@implementation Webservice

+  (void)requestPostUrl:(NSString *)strURL parameters:(NSDictionary *)dictParams success:(void (^)(NSDictionary *responce))success failure:(void (^)(NSError *error))failure {

    AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
    [manager setResponseSerializer:[AFHTTPResponseSerializer serializer]];

    [manager POST:strURL parameters:dictParams progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {
        if([responseObject isKindOfClass:[NSDictionary class]]) {
            if(success) {
                success(responseObject);
            }
        }
        else {
            NSDictionary *response = [NSJSONSerialization JSONObjectWithData:responseObject options:NSJSONReadingAllowFragments error:nil];
            if(success) {
                success(response);
            }
        }

    } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
        if(failure) {
            failure(error);
        }

    }];
}

@end

убедитесь, что вам нужно заменить ключ словаря на успехов и для обработки функции обратного вызова responce

использовать такой вызовите этот общий метод из любого viewcontroller.м и любые методы из любого viewControllers. для временного я использую viewDidLoad для вызова этого WS.

 - (void)viewDidLoad {
        [super viewDidLoad];

        NSDictionary *dictParam = @{@"parameter1":@"value1",@"parameter1":@"value2"};

        [Webservice requestPostUrl:@"add your webservice URL here" parameters:dictParam success:^(NSDictionary *responce) {
            //Success
            NSLog(@"responce:%@",responce);
            //do code here
        } failure:^(NSError *error) {
            //error
        }];
    }

добавьте свой параметр, значения и веб-сервис URL в вышеуказанном методе. вы можете легко использовать это NSObjcet класса. для получения более подробной информации посетите AFNetworking 3.0 или мой старый answear с AFNetworking 2.0.


принятый ответ #Pranoy C преобразуется для AFNetworking 3.0

    NSError *writeError = nil;

    NSData* jsonData = [NSJSONSerialization dataWithJSONObject:params options:NSJSONWritingPrettyPrinted error:&writeError];
    NSString* jsonString = [[NSString alloc]initWithData:jsonData encoding:NSUTF8StringEncoding];

    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:url] cachePolicy:NSURLRequestReloadIgnoringCacheData  timeoutInterval:120];

    [request setHTTPMethod:@"POST"];
    [request setValue: @"application/json; encoding=utf-8" forHTTPHeaderField:@"Content-Type"];
    [request setValue: @"application/json" forHTTPHeaderField:@"Accept"];
    [request setHTTPBody: [jsonString dataUsingEncoding:NSUTF8StringEncoding]];

    AFURLSessionManager *manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]];

    [[manager dataTaskWithRequest:request uploadProgress:nil downloadProgress:nil completionHandler:^(NSURLResponse * _Nonnull response, id  _Nullable responseObject, NSError * _Nullable error) {

        if (!error) {
            NSLog(@"Reply JSON: %@", responseObject);

            if ([responseObject isKindOfClass:[NSDictionary class]]) {
                //blah blah
            }
        } else {

            NSLog(@"Error: %@", error);
            NSLog(@"Response: %@",response);
            NSLog(@"Response Object: %@",responseObject);

        }
    }] resume];

NSMutableDictionary *dict = [[NSMutableDictionary alloc] init];
dict = [NSMutableDictionary dictionaryWithObjectsAndKeys:log.text, @"email", pass.text, @"password", nil];
AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
manager.requestSerializer = [AFHTTPRequestSerializer serializer];

[manager POST:@"add your webservice URL here" parameters:dict progress:nil success:^(NSURLSessionTask *task, id responseObject) {
    NSLog(@"%@", responseObject);   
} 
failure:^(NSURLSessionTask *operation, NSError *error) {
    NSLog(@"Error: %@", error);
}];

/**
 *  Services gateway
 *  Method  get response from server
 *  @parameter              -> object: request josn object ,apiName: api endpoint
 *  @returm                 -> void
 *  @compilationHandler     -> success: status of api, response: respose from server, error: error handling
 */
+ (void)getDataWithObject:(NSDictionary *)object onAPI:(NSString *)apiName withController:(UIViewController*)controller
                         :(void(^)(BOOL success,id response,NSError *error))compilationHandler {


    controller = controller;
    [UIApplication sharedApplication].networkActivityIndicatorVisible = YES;

    AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];

    // set request type to json
    manager.requestSerializer = [AFJSONRequestSerializer serializer];
    manager.responseSerializer = [AFHTTPResponseSerializer serializer];


    // post request to server
    [manager POST:apiName parameters:object success:^(AFHTTPRequestOperation *operation, id responseObject) {

        // NSError *error;
        NSData *jsonData = [NSJSONSerialization dataWithJSONObject:responseObject
                                                           options:0
                                                             error:&error];

        //NSString *JSONString = [[NSString alloc] initWithBytes:[jsonData bytes] length:[jsonData length] encoding:NSUTF8StringEncoding];
        //// 

        // check the status of API
        NSDictionary *dict = responseObject;
        NSString *statusOfApi = [[NSString alloc]initWithFormat:@"%@"
                                 ,[dict objectForKey:@"OK"]];

        // IF Status is OK -> 1 so complete the handler
        if ([statusOfApi isEqualToString:@"1"] ) {

            [UIApplication sharedApplication].networkActivityIndicatorVisible = NO;
            compilationHandler(TRUE,responseObject,nil);

        } else {

            [UIApplication sharedApplication].networkActivityIndicatorVisible = NO;

            NSArray *errorMessages = [responseObject objectForKey:@"messages"];
            NSString *message = [errorMessages objectAtIndex:0];

            [Utilities showAlertViewWithTitle:apiName message:message];

            compilationHandler(FALSE,responseObject,nil);
        }

    } failure:^(AFHTTPRequestOperation *operation, NSError *error) {

        NSString *message = [NSString stringWithFormat:@"%@",[error localizedDescription]];
        NSLog(@"Message is %@", message);

        NSString *errorMessage = [NSString stringWithFormat:@"%@",[error localizedDescription]];
        if (!([message rangeOfString:@"The request timed out."].location == NSNotFound)) {
            [Utilities showAlertViewWithTitle:apiName message:errorMessage];
        }

        compilationHandler(FALSE,errorMessage,nil);
    }];

}

- (instancetype)init {
self = [super init];
if (self) {
    [self configureSesionManager];
}
return self;
}

#pragma mark - Private

- (void)configureSesionManager {
sessionManager = [AFHTTPSessionManager manager];
sessionManager.responseSerializer = [AFJSONResponseSerializer serializer];
sessionManager.responseSerializer.acceptableContentTypes = [sessionManager.responseSerializer.acceptableContentTypes setByAddingObject:@"text/html"];
sessionManager.requestSerializer = [AFHTTPRequestSerializer serializer];
sessionManager.requestSerializer.timeoutInterval = 60;
}

#pragma mark - Public

- (void)communicateUsingPOSTMethod:(NSString*)pBaseURL parameterDictionary:(NSDictionary*)pParameterDictionary
                       success:(void(^)(id))pSuccessCallback failure:(void(^)(NSError* error))pFailiureCallback {

[sessionManager POST:pBaseURL parameters:pParameterDictionary progress:nil success:^(NSURLSessionTask *task, id responseObject) {
    pSuccessCallback(responseObject);
} failure:^(NSURLSessionTask *operation, NSError *error) {
    pFailiureCallback(error);
}];
}

#import <Foundation/Foundation.h>
#import "UserDetailObject.h"
#import "AFNetworking.h"
#import "XMLReader.h"

//宏定义成功block 回调成功后得到的信息
typedef void (^HttpSuccess)(id data);
//宏定义失败block 回调失败信息
typedef void (^HttpFailure)(NSError *error);

@interface NetworkManager : NSObject<NSXMLParserDelegate,  NSURLConnectionDelegate>
@property (strong, nonatomic) NSMutableData *webData;
@property (strong, nonatomic) NSMutableString *soapResults;
@property (strong, nonatomic) NSXMLParser *xmlParser;
@property (nonatomic) BOOL elementFound;
@property (strong, nonatomic) NSString *matchingElement;
@property (strong, nonatomic) NSURLConnection *conn;

//请求水文信息数据
+ (void)sendRequestForSQInfo:(UserDetailObject *)detailObject success:(HttpSuccess)success failure:(HttpFailure)failure;

//get请求
+(void)getWithUrlString:(NSString *)urlString success:(HttpSuccess)success failure:(HttpFailure)failure;

//post请求
+(void)postWithUrlString:(NSString *)urlString parameters:(NSDictionary *)parameters success:(HttpSuccess)success failure:(HttpFailure)failure;

@end

NetworkManager.м

    #import "NetworkManager.h"

@implementation NetworkManager
@synthesize webData;
@synthesize soapResults;
@synthesize xmlParser;
@synthesize elementFound;
@synthesize matchingElement;
@synthesize conn;

+ (void)sendRequestForSQInfo:(UserDetailObject *)detailObject success:(HttpSuccess)success failure:(HttpFailure)failure{
    NSString *parameter = @"{\"endDate\":\"2015-06-01 08\",\"beginDate\":\"2015-06-01 08\"}";
    NSString *urlStr = @"http://10.3.250.136/hwccysq/cxf/water";
    NSString *methodName = @"getSqInfo";

    AFURLSessionManager *manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]];

    //回复的序列化
    manager.responseSerializer = [AFHTTPResponseSerializer serializer];

    [[manager dataTaskWithRequest:[self loadRequestWithParameter:parameter url:urlStr methodName:methodName] completionHandler:^(NSURLResponse * _Nonnull response, id  _Nullable responseObject, NSError * _Nullable error) {

        if (!error) {

            success(responseObject);
        } else {
//            NSLog(@"Error: %@, %@, %@", error, response, responseObject);
            failure(error);
        }

    }] resume];
}

+ (NSMutableURLRequest *)loadRequestWithParameter:(NSString *)parameter url:(NSString *)urlString methodName:(NSString *)methodName{

    NSString *soapMessage =
    [NSString stringWithFormat:
     @"<?xml version=\"1.0\" encoding=\"utf-8\"?>"
     "<soapenv:Envelope xmlns:soapenv=\"http://schemas.xmlsoap.org/soap/envelope/\" xmlns:agen=\"http://agent.water.tjswfxkh.lonwin.com/\" >"
     "<soapenv:Body>"
     "<agen:%@>"
     "<arg0>%@</arg0>"
     "</agen:%@>"
     "</soapenv:Body>"
     "</soapenv:Envelope>", methodName,parameter,methodName
     ];

    // 将这个XML字符串打印出来
    NSLog(@"%@", soapMessage);
    // 创建URL,内容是前面的请求报文报文中第二行主机地址加上第一行URL字段

    NSURL *url = [NSURL URLWithString:urlString];
    // 根据上面的URL创建一个请求
    NSMutableURLRequest *req = [NSMutableURLRequest requestWithURL:url];
    NSString *msgLengt = [NSString stringWithFormat:@"%ld", [soapMessage length]];
    // 添加请求的详细信息,与请求报文前半部分的各字段对应
    [req addValue:@"application/soap+xml; charset=utf-8" forHTTPHeaderField:@"Content-Type"];
    [req addValue:msgLengt forHTTPHeaderField:@"Content-Length"];
    // 设置请求行方法为POST,与请求报文第一行对应
    [req setHTTPMethod:@"POST"];
    // 将SOAP消息加到请求中
    [req setHTTPBody: [soapMessage dataUsingEncoding:NSUTF8StringEncoding]];

    return req;
}


//GET请求
+(void)getWithUrlString:(NSString *)urlString success:(HttpSuccess)success failure:(HttpFailure)failure{
    //创建请求管理者
    AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];

    manager.responseSerializer = [AFHTTPResponseSerializer serializer];
    //内容类型
    manager.responseSerializer.acceptableContentTypes = [NSSet setWithObjects:@"application/json",@"text/json",@"text/javascript",@"text/html", nil];
    //get请求
    [manager GET:urlString parameters:nil progress:^(NSProgress * _Nonnull downloadProgress) {
        //数据请求的进度
    } success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {
        success(responseObject);
    } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
        failure(error);
    }];

}

//POST请求
+(void)postWithUrlString:(NSString *)urlString parameters:(NSDictionary *)parameters success:(HttpSuccess)success failure:(HttpFailure)failure{
    //创建请求管理者
    AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
    //
    manager.responseSerializer = [AFHTTPResponseSerializer serializer];
    //内容类型
    manager.responseSerializer.acceptableContentTypes = [NSSet setWithObjects:@"application/json",@"text/json",@"text/javascript",@"text/html", nil];
    //post请求
    [manager POST:urlString parameters:parameters progress:^(NSProgress * _Nonnull uploadProgress) {
        //数据请求的进度
    } success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {
        success(responseObject);
    } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
        failure(error);
    }];
}


@end

затем добавьте запрос в controller

UserDetailObject *detailObject = [[UserDetailObject alloc]init];
    [NetworkManager sendRequestForSQInfo:detailObject success:^(id data) {

        NSXMLParser *parser = [[NSXMLParser alloc]initWithData:data];

        NSError *parseError = nil;
        NSDictionary *dict  = [XMLReader dictionaryForNSXMLParser:parser error:&parseError];

        NSLog(@"JSON: - %@", dict);

    } failure:^(NSError *error) {
        NSLog(@"%@",error);
    }];

https://github.com/Rita5969/afnetwork3.0-for-webservice