Problems with parsing JSON feed in app - iphone

Question

The following JSON feed contains orders.
How can I retrieve each order, when it doesn't contain a key (can´t use objectForKey)? Between the opening bracket and the first curly bracket there is no key.
[ <-----
{ <-----
"person": {
"address": "My road",
"city": "My City",
"name": "My Name",
},
"orderDate": "30.05.2012 10:27",
"orderId": 10001,
"orderlines": [
{
"unit": {
"unitId": "RA005",
"name": "My Unit name",
},
"id": 10007,
"deliveryInfo": {
"count": 1,
"date": "30.05.2012",
"format": "MY_FORMAT",
},
"sum": 0,
"details": "Testing",
"priority": 3,
}
],
"received": true,
"status": "REGISTERED",
"sumPrice": 0
},
{
"person": {
"address": "My road 2",
"city": "My City 2",
"name": "My Name 2",
},
"orderDate": "30.04.2012 10:27",
"orderId": 10002,
"orderlines": [
{
"unit": {
"unitId": "RA006",
"name": "My Unit name 2",
},
"id": 10008,
"deliveryInfo": {
"count": 2,
"date": "01.06.2012",
"format": "MY_FORMAT",
},
"sum": 0,
"details": "Testing",
"priority": 2,
}
],
"received": true,
"status": "REGISTERED",
"sumPrice": 0
}
]

Answer 1

whenever you see [] (square brackets), it represents array. so use object at index to return the at indexes. one approach is to pass the object into array like
NSMutableArray *arr = (NSMutableArray*) jsonData;

Answer 2

since the root of your json is an array,
NSError *e = nil;
NSArray *jsonArray = [NSJSONSerialization JSONObjectWithData:data options: NSJSONReadingMutableContainers error: &e];
if (!jsonArray) {
NSLog(#"Error parsing JSON: %#", e);
} else {
for(NSDictionary *item in jsonArray) {
NSLog(#"Item: %#", item);
}
}