AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
    NSDictionary *parameters = @{@"name": @"Ian"};

    [manager POST:@"http://google.com"
       parameters:parameters
          success:^(AFHTTPRequestOperation *operation, id responseObject) {

        // e.g. responseObject[@"user"];
        
    } failure:^(AFHTTPRequestOperation *operation, NSError *error) {

        NSData *data= error.userInfo[AFNetworkingOperationFailingURLResponseDataErrorKey];
        NSString *failureResponse = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
        NSLog(@"Failure response: %@", failureResponse);
    }];