Cannot access NSDictionary key in FourSquare API venues

Question

I'm trying to access the "prefix" and "suffix" strings in the following FourSquare NSDictionary. In my nsobject I've tried the following with no luck. Is there an easy way to access the strings? I've tried:

venue.photo = v[@"photo"];
venue.photo = v[@"photo"][@"prefix"];

and the NSDictionary prints:

{
    categories =     (
                {
            icon =             {
                prefix = "https://ss3.4sqi.net/img/categories_v2/arts_entertainment/movietheater_";
                suffix = ".png";
            };
            id = 4bf58dd8d48988d17f941735;
            name = "Movie Theater";
            pluralName = "Movie Theaters";
            primary = 1;
            shortName = "Movie Theater";
        }
    );
    contact =     {
        formattedPhone = "(844) 462-7342";
        phone = 8444627342;
        twitter = regalmovies;
    };
    events =     {
        count = 9;
        summary = "9 movies";
    };
    hasMenu = 1;
    hereNow =     {
        count = 2;
        groups =         (
                        {
                count = 2;
                items =                 (
                );
                name = "Other people here";
                type = others;
            }
        );
        summary = "2 people are checked in here";
    };
    id = 4a2aac37f964a52034961fe3;
    location =     {
        address = "1471 W Webster Ave";
        cc = US;
        city = Chicago;
        country = "United States";
        formattedAddress =         (
            "1471 W Webster Ave",
            "Chicago, IL 60614",
            "United States"
        );
        lat = "41.92149057";
        lng = "-87.66487751";
        postalCode = 60614;
        state = IL;
    };
    menu =     {
        anchor = "View Menu";
        label = Menu;
        mobileUrl = "https://foursquare.com/v/4a2aac37f964a52034961fe3/device_menu";
        type = Menu;
        url = "https://foursquare.com/v/regal-webster-place-11/4a2aac37f964a52034961fe3/menu";
    };
    name = "Regal Webster Place 11";
    referralId = "v-1416373439";
    specials =     {
        count = 1;
        items =         (
                        {
                description = "";
                icon = default;
                id = 50355f96d86cbef3478adc65;
                interaction =                 {
                    entryUrl = "https://foursquare.com/device/specials/50355f96d86cbef3478adc65?venueId=4a2aac37f964a52034961fe3";
                };
                message = "Join us for Deal Days! ALL DAY Tuesday enjoy $6.50 tickets.";
                page =                 {
                    bio = "";
                    contact =                     {
                        twitter = regalmovies;
                    };
                    firstName = "Regal Cinemas";
                    followers =                     {
                        count = 12203;
                        groups =                         (
                        );
                    };
                    gender = none;
                    homeCity = "Knoxville, TN";
                    id = 12864010;
                    photo =                     {
                        prefix = "https://irs0.4sqi.net/img/user/";
                        suffix = "/DMGZGZVXT3NVLKNP.jpg";
                    };
                    tips =                     {
                        count = 347;
                    };
                    type = chain;
                };
                provider = foursquare;
                redemption = webview;
                state = unlocked;
                title = Special;
                type = frequency;
                unlocked = 1;
            }
        );
    };
    stats =     {
        checkinsCount = 23578;
        tipCount = 56;
        usersCount = 10220;
    };
    storeId = Chicago;
    verified = 1;
}

Answer 1

The following code should work -

NSArray *itemsArray=(NSArray *)venue[@"items"];
for (NSDictionary *specialDictionary in itemsArray) {
    NSDictionary *pageDictionary=(NSDictionary *)specialDictionary[@"page"];
    NSDictionary *photoDictionary=(NSDictionary *)pageDictionary[@"photo"];
    NSString *prefix=(NSString *)photoDictionary[@"prefix"];
    NSString *suffix=(NSString *)photoDictionary[@"suffix"];
    // Do something with prefix and suffix 
}

Answer 2

notice that there is a small bracket "(" in the key items, this line

items =         ( <----
                        {
                description = "";
                icon = default;
                id = 50355f96d86cbef3478adc65;
                interaction =                 {

pecials,items[0],page,photo,prefix so the correct answer should be

 venue.photo = v[@"specials"][@"items"][0][@"page"][@"photo"][@"prefix"];