Learn JSON

#import "LoginViewController.h"

@interface LoginViewController ()

@end

@implementation LoginViewController

- (void)viewDidLoad {
    [super viewDidLoad];

    self.title = @"Login";
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
}

/*
#pragma mark - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    // Get the new view controller using [segue destinationViewController].
    // Pass the selected object to the new view controller.
}
*/
- (IBAction)TurnOffKeyboard:(id)sender {
    [self.view endEditing:YES];

}


-(BOOL) textFieldShouldReturn:(UITextField *)textField {
    [textField resignFirstResponder];
    return YES;
}

- (IBAction)Login:(id)sender {
    NSString *email = [NSString stringWithFormat:@"%@", txtEmail.text];
    NSString *password = [NSString stringWithFormat:@"%@", txtPassword.text];
    NSLog(@"Email = %@",email);
    NSLog(@"Password = %@",password);

    NSLog(@"Click");

    NSString *post = [NSString stringWithFormat:@"session[email]=%@&session[password]=%@&session[remember_me],",email,password,0];
    NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
    NSString *postLength = [NSString stringWithFormat:@"%d",[postData length]];

    NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
    [request setURL:[NSURL URLWithString:[NSString stringWithFormat:@"https://manh-nt.herokuapp.com/login.json"]]];
    [request setHTTPMethod:@"POST"];
    [request setValue:postLength forHTTPHeaderField:@"Content-Length"];
    [request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Current-Type"];
    [request setHTTPBody:postData];
    NSURLConnection *conn = [[NSURLConnection alloc]initWithRequest:request delegate:self];


}

- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData*)data {
    NSString* myString;
    myString = [[NSString alloc] initWithData:data encoding:NSASCIIStringEncoding];
    NSLog(@"%@",myString);
    NSLog(@">>>>> I'm here");
    NSError *e = nil;
    NSArray *jsonArray = [NSJSONSerialization JSONObjectWithData: data options: NSJSONReadingMutableContainers error: &e];

    if (!jsonArray) {
        NSLog(@"Error parsing JSON: %@", e);
    } else {
        for(NSDictionary *item in jsonArray) {
            NSLog(@"Item: %@", item);
        }
    }
}

- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error {
    NSLog(@"Error");
}

//- (void)connectionDidFinishLoading:(NSURLConnection *)connection {
//    NSLog(@"Connect success");
//}

@end