iOS read local JSON for object parsing

gistfile1.m

    NSString *jsonFileName =@"your-json-file-name";
    NSString *filePath = [[NSBundle mainBundle] pathForResource:jsonFileName ofType:@"json"];
    NSData *JSONData = [NSData dataWithContentsOfFile:filePath options:NSDataReadingMappedIfSafe error:nil];
    NSDictionary *jsonObject = [NSJSONSerialization JSONObjectWithData:JSONData options:NSJSONReadingMutableContainers error:nil];