Parse JSON from an Array into NSDictionary? (ObjC)

Question

Looking at it for some time now and tried every possible way in my knowledge, but still without any success.

How can I parse the following JSON to get the first array into a dictionary? I am using the AFNetworking library and the responseObject returns the following:

(
y,
    (
    yeti,
    "yeti tumbler",
    "yoga pants",
    "yoga mat",
    "yeezy boost 350",
    "yeti cup",
    yoga,
    yeezy,
    "young living essential oils",
    yugioh
),
    (
            {
        nodes =             (
                            {
                alias = garden;
                name = "Home & Kitchen";
            },
                            {
                alias = "outdoor-recreation";
                name = "Outdoor Recreation";
            },
                            {
                alias = "fan-shop";
                name = "Sports Fan Shop";
            }
        );
    },
            {
    },
            {
    },
            {
    },
            {
    },
            {
    },
            {
    },
            {
    },
            {
    },
            {
    }
),
    (
)

)

Now, how can I get the first array into a NSDictionary?

(
    yeti,
    "yeti tumbler",
    "yoga pants",
    "yoga mat",
    "yeezy boost 350",
    "yeti cup",
    yoga,
    yeezy,
    "young living essential oils",
    yugioh
)

ObjC code:

    - (void)requestJSONWithQuery:(NSString *)query
{
    if (!_requestOperation.isCancelled) [_requestOperation cancel];
    query = [query stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
    NSString *string = [NSString stringWithFormat:_URLDictionaryForAPIs[@(_APIType)], query];
    NSURL *url = [NSURL URLWithString:string];
    NSURLRequest *request = [NSURLRequest requestWithURL:url];
    _requestOperation = [[AFHTTPRequestOperation alloc] initWithRequest:request];
    _requestOperation.responseSerializer = [AFJSONResponseSerializer serializer];
    __block FFFGoogleSearchAutoCompleteController *selfInBlock = self;
    [_requestOperation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {


     //   NSLog(@"%@", responseObject);
        selfInBlock.suggestions = [(NSDictionary *)responseObject mutableArrayValueForKey:query];
        [selfInBlock refreshSuggestionTable];


    } failure:^(AFHTTPRequestOperation *operation, NSError *error) {


    }];
    [_requestOperation start];
}

This will return the following error:

Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<NSTaggedPointerString 0xa0000000000006b1> valueForUndefinedKey:]: this class is not key value coding-compliant for the key K.'

Answer 1

["k",["kindle","kindle fire","kindle books","keurig","knife","kate spade","keyboard","kindle paperwhite","knife sharpener","kindle fire case"],[{"nodes":[{"name":"Kindle Store","alias":"digital-text"},{"name":"Electronics","alias":"electronics"},{"name":"Computers","alias":"computers"}]},{},{},{},{},{},{},{},{},{}],[]] is not a dictionary. Your response is an array. The first item is the query. The second seems to be the thing that you want. I would try to do this for a test:

selfInBlock.suggestions = [(NSArray *)responseObject objectAtIndex:1];