-(void)SignUp:(NSString *)sign  user_name:(NSString*)uname surname:(NSString*)sname phone_number:(NSString*)phone brand_name:(NSString*)brand legal_name:(NSString*)legname country_id:(NSString*)country currency:(NSString*)cur
        email:(NSString*)mail image:(NSString*)img addresses:(NSArray*)list_address phones:(NSArray*)list_phones emails:(NSArray*)list_mails completion:(void (^)(NSString *response))completion{





    NSMutableData *data = [[NSMutableData alloc] init];
    self.response = data;

    NSURL *url = [NSURL URLWithString:signUpURL];

    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
    // create HTTP Method - POST
    [request setHTTPMethod:@"POST"];
    // Initializes Post Parameters
    sign = @"Register";
    uname = @"vlad_ios";
    sname = @"hodeev";
    phone = @"+375299705579";
    brand = @"Adidas";
    legname = @"Adidas LTD";
    country = @"BY";
    cur = @"BYN";
    mail = @"vlad_pro@icloud.com";
    img = @"";
    list_address = @[@"Воронянского, 64",@"Пр-т Независимости, 23"];
    list_phones = @[@"+375299705579", @"+375297903743"];
    list_mails = @[@"vlad_pro@icloud.com",@"vlad_rav@tut.by"];

    NSString *postData = [NSString stringWithFormat:@"name=%@&surname=%@&phone=%@&brand=%@&legal_name=%@&country=%@&currency=%@& email=%@&image=%@&addresses=%@&phones=%@&emails=%@",uname, sname, phone,brand,legname, country, cur,mail, img, list_address,list_phones, list_mails];
    NSString *postLength = [NSString stringWithFormat:@"%lu", (unsigned long)[postData length]];

    [request setValue:postLength forHTTPHeaderField:@"Content-Length"];
    [request setValue:@"application/json" forHTTPHeaderField:@"Accept"];
    [request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];
    [request setHTTPBody:[postData dataUsingEncoding:NSUTF8StringEncoding]];
    [request setCachePolicy:NSURLRequestUseProtocolCachePolicy];
    [request setValue:@"application/json" forHTTPHeaderField:@"json"];

    [request setTimeoutInterval:5];

    [[[NSURLSession sharedSession] dataTaskWithRequest:request
                                     completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {

                                         if (!error && data){ // here you can check also response.statusCode if needed
                                             NSString *serverResponse = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];


                                             json = [[NSMutableArray alloc]init];

                                             json = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:&error];
                                             NSLog(@"result json: %@", json);


                                             dispatch_async(dispatch_get_main_queue(), ^{
                                                 completion(serverResponse);
                                             });
                                         }else {
                                             dispatch_async(dispatch_get_main_queue(), ^{
                                                 completion(nil);
                                                 //show some alert about no connection etc
                                             });
                                         }
                                     }] resume;

}