How to Post Data Using Afnetworking 2.0

How to POST data using AFNetworking 2.0?

Does your web service expect the parameters to be formatted as JSON? If so, before you invoke the POST method, you need to tell the manager to use a JSON requestSerializer, i.e. AFJSONRequestSerializer:

manager.requestSerializer = [AFJSONRequestSerializer serializer];

By default, AFNetworking assumes you want to use AFHTTPRequestSerializer (i.e. a request with a Content-Type of application/x-www-form-urlencoded).

Posting JSON data using AFNetworking 2.0

after searching docs and trying out some codes I got following as an example

 AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
manager.requestSerializer = [AFJSONRequestSerializer serializer];

NSDictionary *params = @ {@"user" :txtUserName, @"pwd" :txtPwd };

[manager POST:URL_SIGNIN parameters:params
success:^(AFHTTPRequestOperation *operation, id responseObject)
{
    NSLog(@"JSON: %@", responseObject);
}
failure:
 ^(AFHTTPRequestOperation *operation, NSError *error) {
     NSLog(@"Error: %@", error);
 }];

Also don't forget to set response header type in the server script as Application/json.

Objective-C How to POST form-data using AFNetworking?

You need to serialize your params dictionary and then string encode it, since your body parameter has a JSON object in it.
Try using this :

    NSDictionary *params = @{@"email": @"email@gmail.com", @"name": @"myName"};
    NSData *jsonData = [NSJSONSerialization dataWithJSONObject:params options:0 error:nil];
    NSString *json = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
    NSDictionary *dict = @{@"body":json};
    AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
    manager.responseSerializer = [AFJSONResponseSerializer serializer];
    [manager POST:@"http://myURL.com/user" parameters:dict success:^(AFHTTPRequestOperation *operation, id responseObject) {
        NSLog(@"JSON: %@", responseObject);
    } failure:^(AFHTTPRequestOperation *operation, NSError *error) {
        NSString *myString = [[NSString alloc] initWithData:operation.request.HTTPBody encoding:NSUTF8StringEncoding];
        NSLog(@"Error: %@", myString);
    }];

AFNetworking Post Request

It's first worth adding (as this answer is still popular 6 years after I initially wrote it...) that the first thing you should consider is whether you should even use AFNetworking. NSURLSession was added in iOS 7 and means you don't need to use AFNetworking in many cases - and one less third party library is always a good thing.

For AFNetworking 3.0:

AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
NSDictionary *params = @{@"user[height]": height,
                         @"user[weight]": weight};
[manager POST:@"https://example.com/myobject" parameters:params progress:nil success:^(NSURLSessionTask *task, id responseObject) {
    NSLog(@"JSON: %@", responseObject);
} failure:^(NSURLSessionTask *operation, NSError *error) {
    NSLog(@"Error: %@", error);
}];

For AFNetworking 2.0 (and also using the new NSDictionary syntax):

AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
NSDictionary *params = @{@"user[height]": height,
                         @"user[weight]": weight};
[manager POST:@"https://example.com/myobject" parameters:params success:^(AFHTTPRequestOperation *operation, id responseObject) {
    NSLog(@"JSON: %@", responseObject);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
    NSLog(@"Error: %@", error);
}];

If you are stuck using AFNetworking 1.0, you need to do it this way:

NSURL *url = [NSURL URLWithString:@"https://example.com/"];
AFHTTPClient *httpClient = [[AFHTTPClient alloc] initWithBaseURL:url];

NSDictionary *params = [NSDictionary dictionaryWithObjectsAndKeys:
                        height, @"user[height]",
                        weight, @"user[weight]",
                        nil];
[httpClient postPath:@"/myobject" parameters:params success:^(AFHTTPRequestOperation *operation, id responseObject) {
    NSString *responseStr = [[NSString alloc] initWithData:responseObject encoding:NSUTF8StringEncoding];
    NSLog(@"Request Successful, response '%@'", responseStr);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
    NSLog(@"[HTTPClient Error]: %@", error.localizedDescription);
}];

AFNetworking 2.0 Send Post Request with array of dictionary Parameters

just add

Step-1

// create the dictionary of {"name":"abc","phone":"1234567890"},{"name":"Kate Bell","phone":"9925992599"} this

NSDictionary *params = @{@"name": @"hello",
                         @"phone": @"1234567890"};

Step-2

//create the one array of this output [ {"name":"abc","phone":"1234567890"},{"name":"Kate Bell","phone":"9925992599"} ]

NSMutableArray *arr = [NSMutableArray arrayWithObjects:params,nil];

Step-3

// convert your object to JSOn String
NSError *error = nil;
NSString *createJSON = [[NSString alloc] initWithData:[NSJSONSerialization dataWithJSONObject:objectsInCart
                                                                                options:NSJSONWritingPrettyPrinted
                                                                                  error:&error]
                                       encoding:NSUTF8StringEncoding];

Step-4

//create the another one dictionary for send the data for like data=[ {"name":"abc","phone":"1234567890"},{"name":"Kate Bell","phone":"9925992599"} ]

 NSDictionary *pardsams = @{@"data": createJSON};

Step-5

  // finally start your request
  AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];

    NSLog(@"Dict %@",pardsams);
    manager.responseSerializer.acceptableContentTypes = [manager.responseSerializer.acceptableContentTypes setByAddingObject:@"text/html"];

[manager POST:@"http://forapp.com/api/getContacts.php" parameters:pardsams success:^(AFHTTPRequestOperation *operation, id responseObject) {
    NSLog(@"JSON: %@", responseObject);

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

}];

How to upload binary data using AFNetworking 2.0

I eventually got this to work by using the AFURLSessionManager. Here is the complete code:

NSString *uploadAttachmentURL = @"https://mydomain.zendesk.com/api/v2/uploads.json?filename=screenshot.jpeg";

        NSData *imageData = UIImageJPEGRepresentation(image, 1.0);

        NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration defaultSessionConfiguration];
        _afHTTPSessionManager = [[AFHTTPSessionManager alloc] initWithSessionConfiguration:configuration];

        // hack to allow 'text/plain' content-type to work
        NSMutableSet *contentTypes = [NSMutableSet setWithSet:_AFOpManager.responseSerializer.acceptableContentTypes];
        [contentTypes addObject:@"text/plain"];
        _afHTTPSessionManager.responseSerializer.acceptableContentTypes = contentTypes;

        [_afHTTPSessionManager.requestSerializer setAuthorizationHeaderFieldWithUsername:@"[USERNAME]" password:@"[PASSWORD]"];

        [_afHTTPSessionManager POST:uploadAttachmentURL parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
            [formData appendPartWithFileData:imageData name:@"screenshot" fileName:@"photo.jpg" mimeType:@"image/jpeg"];
        } success:^(NSURLSessionDataTask *task, id responseObject) {
            DDLogError(@"screenshot operation success!  %@", responseObject);
        } failure:^(NSURLSessionDataTask *task, NSError *error) {
            DDLogError(@"Operation Error: %@", error);
        }];

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