How to share data with containing app using NSUserDefaults ? - Today Extension Widget

I am trying to create a Today Extension Widget which displays stored data in the widget.

Here's what I have done;

• Added New Today Widget Target
• Set up UIViewController for widget
• Enable App Groups for both the app and extension

Now I have hit a road block, I am unsure the best way to retrieve and display a simple array of fetched data.

There is very little Swift tutorials and they often do not use core data.

In the main app project I fetch the array.

 let moc = (UIApplication.sharedApplication().delegate as! AppDelegate).managedObjectContext
 let request = NSFetchRequest(entityName: "Objects")
    do {
      try
      self.objectsArray = moc.executeFetchRequest(request) as! [Objects]
    } catch {

    }

How can I use NSUserDefaults to store the objects array and then use in the today widget extension ? Or Even an array of string values.