How to Get Calendar Permissions with EventKit in Swift in macOS App - eventkit

Question

I'm trying to add a calendar event to the macOS calendar from a Mac app I'm developing with Swift 5 in Xcode 11.2.1.
For starters, I have the Calendar entitlement checked in the App Sandbox.
I'm trying to prompt for permissions like this:
import EventKit
#IBAction func clickAddToCalendar(_ sender: NSButton){
let eventStore = EKEventStore()
eventStore.requestAccess(to: .event){ granted, error in
print(granted) // returns false
print("----")
print(error) // returns nil
}
}
...but granted is false every time and I never see a popup to grant permission. Is prompting for access like this necessary on macOS? It would seem so, because when I attempt to add a calendar event directly like this:
let event = EKEvent(eventStore: eventStore)
event.title = "My Event"
event.startDate = Date()
event.endDate = Date()
event.calendar = eventStore.defaultCalendarForNewEvents
do {
try eventStore.save(event, span: .thisEvent)
} catch let error as NSError {
print(error)
}
...I get an error:
serviceName = "com.apple.CalendarAgent.database"; ... returned error NSCocoaErrorDomain(134070) with userInfo dictionary { Problem = "request failed, insufficient permission" }
Has anyone does this that could give me some pointers? Thank you!

Answer 1

Do you have an info.plist item for Privacy - Calendars Usage Description?
required for EventKit see https://developer.apple.com/documentation/eventkit/accessing_the_event_store