We want to upload location on server when user killed our app using Alamofire

Question

I want to track use location when user killed our app and store this (laongite and latitude) value into database using Alamofire.

class ViewController: UIViewController, CLLocationManagerDelegate {
    var backgroundTask: UIBackgroundTaskIdentifier = UIBackgroundTaskIdentifier.invalid
    // Used to start getting the users location
    let locationManager = CLLocationManager()
    var longitude  = Double()
    var latitude = Double()
    var count = 0
    override func viewDidLoad() {
        super.viewDidLoad()
        registerBackgroundTask()
        doSomeDownload()
        locationManager.requestAlwaysAuthorization()


        if CLLocationManager.locationServicesEnabled() {
            locationManager.delegate = self
            locationManager.desiredAccuracy = kCLLocationAccuracyBest
            locationManager.allowsBackgroundLocationUpdates = true
            locationManager.pausesLocationUpdatesAutomatically = false
            locationManager.startUpdatingLocation()
            locationManager.startMonitoringSignificantLocationChanges()
        }
    }

    // Print out the location to the console
    func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
        if let location = locations.first {
            print(location.coordinate)
           longitude = location.coordinate.longitude
           latitude = location.coordinate.latitude
            updatelocation()



        }
    }

    // If we have been deined access give the user the option to change it
    func locationManager(_ manager: CLLocationManager, didChangeAuthorization status: CLAuthorizationStatus) {
        if(status == CLAuthorizationStatus.denied) {
            showLocationDisabledPopUp()
        }
    }

    // Show the popup to the user if we have been deined access
    func showLocationDisabledPopUp() {
        let alertController = UIAlertController(title: "Background Location Access Disabled",
                                                message: "In order to deliver pizza we need your location",
                                                preferredStyle: .alert)

        let cancelAction = UIAlertAction(title: "Cancel", style: .cancel, handler: nil)
        alertController.addAction(cancelAction)

        let openAction = UIAlertAction(title: "Open Settings", style: .default) { (action) in
            if let url = URL(string: UIApplication.openSettingsURLString) {
                UIApplication.shared.open(url, options: [:], completionHandler: nil)
            }
        }
        alertController.addAction(openAction)

        self.present(alertController, animated: true, completion: nil)
    }
    func doSomeDownload() {
        count = count + 1
        print("count")
        //call endBackgroundTask() on completion..
        switch UIApplication.shared.applicationState {
        case .active:
            print("App is active.")
        case .background:
            print("App is in background.")
            print("Background time remaining = \(UIApplication.shared.backgroundTimeRemaining) seconds")
        case .inactive:
            break


        @unknown default:
            fatalError()
            break
        }
    }

    func registerBackgroundTask() {

        backgroundTask = UIApplication.shared.beginBackgroundTask { [weak self] in
            self?.endBackgroundTask()

        }
        assert(backgroundTask != UIBackgroundTaskIdentifier.invalid)
    }

    func endBackgroundTask() {
        print("Background task ended.")
        UIApplication.shared.endBackgroundTask(backgroundTask)
        backgroundTask = UIBackgroundTaskIdentifier.invalid
    }




    func updatelocation()
    {



        print (longitude)
        print (latitude)

        let URL_USER_LOGIN = "http://etaksi.biz/TouchOne/ios/location_update.php"
        //getting the username and password
        let parameters: Parameters=[
            "id":"15350",
            "longitude":self.longitude,
            "latitude" : self.latitude

        ]
        Alamofire.request(URL_USER_LOGIN, method: .post, parameters: parameters).responseJSON
            {
                data in

        }




    }
}