How to implement Evenkit in order to request permission - swift

Question

I'm building a mac application which should add a reminder in calendar. The build goes without errors nor warning but when the app launch, I get the following error :
"Reminder failed with error Access to this event store is unauthorized."
I have search the web for the right way to request access to calendar on the mac but have not found any.
I have try to translate the following exemple from ios to mac but it failed: https://github.com/andrewcbancroft/EventTracker/tree/ask-for-permission
Here is my code :
import Cocoa
import EventKit
#NSApplicationMain
class AppDelegate: NSObject, NSApplicationDelegate, NSTableViewDataSource, NSTableViewDelegate
{
#IBOutlet weak var window: NSWindow!
var eventStore = EKEventStore()
var calendars: [EKCalendar]?
func applicationDidFinishLaunching(_ aNotification: Notification)
{
let reminder = EKReminder(eventStore: self.eventStore)
reminder.title = "Go to the store and buy milk"
reminder.calendar = eventStore.defaultCalendarForNewReminders()
do
{
try eventStore.save(reminder,
commit: true)
} catch let error {
print("Reminder failed with error \(error.localizedDescription)")
}
}
func applicationWillTerminate(_ aNotification: Notification)
{
// Insert code here to tear down your application
}
}
Thank you for your attention.

Answer 1

You have to call requestAccess(to:completion: on the event store for example
let eventStore = EKEventStore()
eventStore.requestAccess(to: .reminder) { (granted, error) in
if let error = error {
print(error)
return
}
if granted {
// go on managing reminders
}
}

Answer 2

import Cocoa
import EventKit
#NSApplicationMain
class AppDelegate: NSObject, NSApplicationDelegate, NSTableViewDataSource, NSTableViewDelegate {
#IBOutlet weak var window: NSWindow!
var eventStore = EKEventStore()
func applicationDidFinishLaunching(_ aNotification: Notification)
{
eventStore.requestAccess(to: .reminder)
{ (granted, error) in
if let error = error
{
print(error)
return
}
if granted
{
let reminder = EKReminder(eventStore: self.eventStore)
reminder.title = "Go to the store and buy milk"
reminder.calendar = self.eventStore.defaultCalendarForNewReminders()
let date : NSDate = NSDate()
let alarm : EKAlarm = EKAlarm (absoluteDate: date.addingTimeInterval(10) as Date)
reminder.addAlarm(alarm)
do
{
try self.eventStore.save(reminder,commit: true)
}
catch let error {print("Reminder failed with error \(error.localizedDescription)")}
}
}
}
func applicationWillTerminate(_ aNotification: Notification)
{
// Insert code here to tear down your application
}
}