Talha Ch Talha Ch - 3 months ago 52
iOS Question

send JSON object in POST request AFNetworking , iOS

I'm using

AFNetworking
to post data into the web. The information I have is the
URI
which is
baseURL/post_user_info
and they want
input
as A JSON object containing each of the name-value pairs. In the code written below I've set the name-value pair in a dictionary. My question is how to make it's json and send it as input value?

NSString *string = [NSString stringWithFormat:@"%@?post_user_info",BaseURLString];
NSString *escapedPath = [string stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLQueryAllowedCharacterSet]];
AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];

NSDictionary *params = @{@"1": @"hello world",
@"2": @"my@you.com",
@"3": @"newworldorder"};
NSData* jsonData = [NSJSONSerialization dataWithJSONObject:params options:kNilOptions error:nil];

NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
[request setHTTPMethod:@"POST"];
[request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
[request setValue:@"application/json" forHTTPHeaderField:@"Accept"];
[request setHTTPBody:jsonData];

[manager POST:escapedPath parameters:[[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding] progress:nil success:^(NSURLSessionTask *task, id responseObject)
{
NSLog(@"%@",responseObject);
}failure:^(NSURLSessionTask *operation, NSError *error)
{
NSLog(@"%@",[error localizedDescription]);
}];


I've updated the code because now I have generated the JSON but if I run the code now it give me Error: 400 which means If input_values is empty, a bad request error will be output.

Answer

@interface AFJSONRequestSerializer : AFHTTPRequestSerializer

AFJSONRequestSerializeris a subclass ofAFHTTPRequestSerializerthat encodes parameters as JSON using NSJSONSerialization.

add this AFJSONRequestSerializer is used for send JSON not a Raw Data add this and try once

    manager.responseSerializer = [AFHTTPResponseSerializer serializer];
    manager.requestSerializer = [AFJSONRequestSerializer serializer];

e.g

NSString *string = [NSString stringWithFormat:@"%@?post_user_info",BaseURLString];
NSString *escapedPath = [string stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLQueryAllowedCharacterSet]];

 /**************  karthik Code added  ******************/
 AFHTTPSessionManager* manager = [[AFHTTPSessionManager alloc] initWithSessionConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]];
 manager.responseSerializer = [AFHTTPResponseSerializer serializer];
 manager.requestSerializer = [AFJSONRequestSerializer serializer];
      /**************  karthik Code added  ******************/

    NSDictionary *params = @{@"1": @"hello world",
                             @"2": @"my@you.com",
                             @"3": @"newworldorder"};
manager POST:escapedPath parameters:params progress:nil success:^(NSURLSessionTask *task, id responseObject)
     {
         NSLog(@"%@",responseObject);
          NSError* error = nil;
        NSDictionary* json = [NSJSONSerialization JSONObjectWithData:responseObject options:0 error:nil];
           NSLog(@"json == %@",json);

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