Iterating through a JSON response

[Isuru-Nanayakkara]

I get a JSON response from a web service which looks like this.

{
  "1":"Rooms",
  "2":"Kitchen",
  "3":"Bed1",
  "4":"Bed2",
  "5":"Bed3",
  "6":"Master",
  "7":"Breakfast",
  "8":"Bath1",
  "9":"Bath2",
  "10":"Living"
}

As you can see it's a list of rooms. Each room has a number and a name. I have created a model class called Room with two properties for ID and Name.

Here is the method I call the web service to get the response.

public func getRooms(completionHandler: (response: [Room]?, error: NSError?) -> Void) {
    let response = {(response: NSHTTPURLResponse!, data: HTTPHandler.Data!, error: NSError!) -> Void in
        let json = JSONValue(data)
        println(json["rooms"])

    }
    let httphandler = HTTPHandler.get("http://webservie.com/rooms", response: response)
}

I want to return an array of Room class objects. I get the JSON response to the json constant properly. How can I iterate through it and collect the objects into an array? I tried to do a for in loop on it but apparently its not possible.

Can someone please help me out?

Thank you.

[bsvingen]

Assuming that json contains the JSONValue resulting from your JSON, you can use the object method to turn it into a dictionary that can be iterated:

if let dictionary = json.object {

    for (key, value) in dictionary {

        println("key: \(key), value: \(value)")

    }

}

You can then turn this into an array in any way you choose (or just keep it as a dictionary).

[Isuru-Nanayakkara]

I got it working like this.

let json = JSONValue(data)

switch json["rooms"] {
case .JObject(let rooms):
    var roomsAray = [Room]()
    for room in rooms {
        var roomObj = Room(id: room.0.toInt(), type: room.1.string)
        roomsAray.append(roomObj)
    }
    completionHandler(response: roomsAray, error: error)
default:
    println("JSON data is broken!")
}

but your way is much cleaner and clearer. Thanks. 👍