Parsing a JSON array in fast

Question

I am trying to parse the following JSON

[
    {
        "id": "5",
        "name": "Test",
        "team1": "thingy team",
        "team2": "clicky team",
        "category": "4",
        "end_date": "1415217600",
        "cat_name": "new thingy",
        "team1_bets": 1,
        "team2_bets": 1
    }
]

This is the JSON I get from my web services and I use the following code to parse it:

let urlAsString = "http://codespikestudios.com/betting_app/bet/get_events/4"
    //let urlAsString = "http://api.topcoder.com/v2/challenges?pageSize=2"
    let url: NSURL  = NSURL(string: urlAsString)!
    let urlSession = NSURLSession.sharedSession()

    let jsonQuery = urlSession.dataTaskWithURL(url, completionHandler: { data, response, error -> Void in
        if (error != nil) {
            println(error.localizedDescription)
        }
        var err: NSError?

        var jsonResult = NSJSONSerialization.JSONObjectWithData(data, options: NSJSONReadingOptions.MutableContainers, error: &err) as NSDictionary
        if (err != nil) {
            println("JSON Error \(err!.localizedDescription)")
        }

        println(jsonTime)
    })
    jsonQuery.resume()

I get the following error

The operation could not be completed. (NSURLErrorDomain error -1005.) Fatal error: Zero unexpectedly found while expanding optional value

how can i solve this?

Answer 1

Your URL returns the following JSON -

[
    {
        "id": "5",
        "name": "Test",
        "team1": "thingy team",
        "team2": "clicky team",
        "category": "4",
        "end_date": "1415217600",
        "cat_name": "new thingy",
        "team1_bets": 1,
        "team2_bets": 1
    }
]

External square brackets indicate that the root object is an array, so trying to apply the result of your JSON analysis to an NSDictionary is causing problems.

Your code should be -

let urlAsString = "http://codespikestudios.com/betting_app/bet/get_events/4"
let url: NSURL  = NSURL(string: urlAsString)!
let urlSession = NSURLSession.sharedSession()

let jsonQuery = urlSession.dataTaskWithURL(url, completionHandler: { data, response, error -> Void in
    if (error != nil) {
        println(error.localizedDescription)
    }
    var err: NSError?

    var jsonResult = NSJSONSerialization.JSONObjectWithData(data, options: NSJSONReadingOptions.MutableContainers, error: &err) as NSArray?
    if (err != nil) {
        println("JSON Error \(err!.localizedDescription)")
    }

    println(jsonResult!)
})
jsonQuery.resume()

Answer 2

CFNetworking -1005, kCFURLErrorNetworkConnectionLost = -1005. - .