MainViewModel.swift

class MainViewModel: NSObject {
    
    var model :Meal[] = []
    let mealUrl = "http://verdant-upgrade-554.appspot.com/soservices/mealmanager"
    
    init() {
        super.init()
    }
    
    func fetchModel(completion:() -> Void) {
        self.downloadMeals({ completion() })
    }
    
    func downloadMeals (completion:() -> Void) {
        var request = NSURLRequest(URL: NSURL(string: self.mealUrl))
        NSURLConnection.sendAsynchronousRequest(request, queue: NSOperationQueue.mainQueue(), completionHandler: {(response: NSURLResponse!, data: NSData!, error: NSError!) -> Void in
            var result = NSJSONSerialization.JSONObjectWithData(data, options: NSJSONReadingOptions.MutableLeaves, error: nil) as NSArray
            for obj : AnyObject in result {
                var dict = obj as Dictionary<String, String>
                var meal = Meal()
                meal.name = dict["name"]!
                self.model.append(meal)
            }
            completion()
            })
        
    }
}