Deserialize JSON to Objective-C

data.json

{
  "completed_in": 0.012,
  "max_id": 136536013832069120,
  "max_id_str": "136536013832069120",
  "next_page": "?page=2&max_id=136536013832069120&q=twitterapi&rpp=1",
  "page": 1,
  "query": "twitterapi",
  "refresh_url": "?since_id=136536013832069120&q=twitterapi",
  "results": [
    {
      "created_at": "Tue, 15 Nov 2011 20:08:17 +0000",
      "from_user": "fakekurrik",
      "from_user_id": 370773112,
      "from_user_id_str": "370773112",
      "from_user_name": "fakekurrik",
      "geo": null,
      "id": 136536013832069120,
      "id_str": "136536013832069120",
      "iso_language_code": "en",
      "metadata": {
        "result_type": "recent"
      },
      "profile_image_url": "http://a1.twimg.com/profile_images/1540298033/phatkicks_normal.jpg",
      "source": "<a href="http://twitter.com/">web</a>",
      "text": "@twitterapi, keep on keeping it real",
      "to_user": "twitterapi",
      "to_user_id": 6253282,
      "to_user_id_str": "6253282",
      "to_user_name": "Twitter API"
    }
  ],
  "results_per_page": 1,
  "since_id": 0,
  "since_id_str": "0"
}

description.txt

dictionary: {
    "completed_in" = "0.012";
    "max_id" = 136536013832069120;
    "max_id_str" = 136536013832069120;
    "next_page" = "?page=2&max_id=136536013832069120&q=twitterapi&rpp=1";
    page = 1;
    query = twitterapi;
    "refresh_url" = "?since_id=136536013832069120&q=twitterapi";
    results =     (
                {
            "created_at" = "Tue, 15 Nov 2011 20:08:17 +0000";
            "from_user" = fakekurrik;
            "from_user_id" = 370773112;
            "from_user_id_str" = 370773112;
            "from_user_name" = fakekurrik;
            geo = "<null>";
            id = 136536013832069120;
            "id_str" = 136536013832069120;
            "iso_language_code" = en;
            metadata =             {
                "result_type" = recent;
            };
            "profile_image_url" = "http://a1.twimg.com/profile_images/1540298033/phatkicks_normal.jpg";
            source = "&lt;a href=&quot;http://twitter.com/&quot;&gt;web&lt;/a&gt;";
            text = "@twitterapi, keep on keeping it real";
            "to_user" = twitterapi;
            "to_user_id" = 6253282;
            "to_user_id_str" = 6253282;
            "to_user_name" = "Twitter API";
        }
    );
    "results_per_page" = 1;
    "since_id" = 0;
    "since_id_str" = 0;
}

deserialize.m

// Read JSON from a file (simulate internet download)
NSString *path = [[NSBundle mainBundle] pathForResource:@"data" ofType:@"json"];
NSData *jsonData = [NSData dataWithContentsOfFile:path];
 
NSError *error = nil;
 
// Get JSON data into a Foundation object
id object = [NSJSONSerialization JSONObjectWithData:jsonData options:NSJSONReadingAllowFragments error:&error];
 
// Verify object retrieved is dictionary
  if ([object isKindOfClass:[NSDictionary class]] && error == nil)
{
  NSLog(@"dictionary: %@", object);
 
  // Get the value (string) for key 'next_page'
  NSString *str;
  str = [object objectForKey:@"next_page"];
  NSLog(@"next_page: %@", str);
 
  // Get the value (an array) for key 'results'
  NSArray *array;
  // Get the 'results' array
  if ([[object objectForKey:@"results"] isKindOfClass:[NSArray class]])
  {
    array = [object objectForKey:@"results"];
    NSLog(@"results array: %@", array);
  }
}