@IBOutlet weak var userFullName: UILabel!
@IBOutlet weak var userProfileImage: UIImageView!


override func viewDidLoad() {
    super.viewDidLoad()

    userFullName.text = ""

    if let _ = FBSDKAccessToken.current()
    {
        fetchUserProfile()
    }

}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()

}


func fetchUserProfile()
{
    let graphRequest : FBSDKGraphRequest = FBSDKGraphRequest(graphPath: "me", parameters: ["fields":"id, email, name, picture.width(200).height(200)"])

    graphRequest.start(completionHandler: { (connection, result, error) -> Void in

        if ((error) != nil)
        {
            print("Error took place: (error)")
        }
        else
        {
            print("Print entire fetched result: (result)")

            let fbData:[String:AnyObject] = result as! [String : AnyObject]

            let userName : NSString? = fbData["name"]! as? NSString
            let facebookID : NSString? = fbData["id"]! as? NSString

            if let imageURL = ((fbData["picture"] as? [String: Any])?["data"] as? [String: Any])?["url"] as? String {
                //Download image from imageURL
            }

        }
    })
}