Shortening URLs in iOS

NSString *url = @"http://www.example.com";

NSString *apiUrl = [NSString stringWithFormat:@"http://api.tr.im/v1/trim_simple?url=%@",url];

NSString *shortURL = [NSString stringWithContentsOfURL:[NSURL URLWithString:apiUrl]

encoding:NSASCIIStringEncoding

error:nil];

NSLog(@"Long: %@ = Short: %@",url,shortURL);