Q:

Prettiest way to parse JSON in Objective-C?

I am trying to parse some JSON from an API, but I have 'trouble' parsing sub-elements of the JSON. My methods of doing that seems like it could be prettier.
I am trying to parse from http://data.mtgox.com/api/2/BTCUSD/money/ticker_fast?pretty and I get
{
    "result": "success",
    "data": {
        "last_local": {
            "value": "785.00000",
            "value_int": "78500000",
            "display": "$785.00",
            "display_short": "$785.00",
            "currency": "USD"
        },
        "last": {
            "value": "785.00000",
            "value_int": "78500000",
            "display": "$785.00",
            "display_short": "$785.00",
            "currency": "USD"
        },
        "last_orig": {
            "value": "785.00000",
            "value_int": "78500000",
            "display": "$785.00",
            "display_short": "$785.00",
            "currency": "USD"
        },
        "last_all": {
            "value": "785.00000",
            "value_int": "78500000",
            "display": "$785.00",
            "display_short": "$785.00",
            "currency": "USD"
        },
        "buy": {
            "value": "785.00000",
            "value_int": "78500000",
            "display": "$785.00",
            "display_short": "$785.00",
            "currency": "USD"
        },
        "sell": {
            "value": "785.50000",
            "value_int": "78550000",
            "display": "$785.50",
            "display_short": "$785.50",
            "currency": "USD"
        },
        "now": "1386421846023718"
    }
}

Now I want to access valueat last at data. My way of doing this is nesting a bunch of objectForKey:string -- such as  
[[[[[self getInformationFrom:mtgox] objectForKey:@"data"] objectForKey:@"last"] objectForKey:@"value"] floatValue];
Basically what getInformationFrom:mtgox does is return an NSDictionary with NSJSONSerialization.
Is there a better way of getting the value of this JSON data?

A:

You could use the dictionary literals:
[[self getInformationFrom:mtgox][@"data"][@"last"][@"value"] floatValue];

Or you could use KVC:
[[[self getInformationFrom:mtgox] valueForKeyPath:@"data.last.value"] floatValue];

