Best practice for removePendingNotificationRequests with CoreData

Hello all,

I have a question regarding how to use the removePendingNotificationRequests when implemented in CoreData.

Currently, I have an app that lets users save meeting URLs. Each meeting the user creates is stored as a CoreData entity. They can set a time for these meetings, and the app will schedule a local notification for a few minutes before the meeting. The way I'm doing this is passing the meeting time the user selected into a sendNotification function and using that time as a trigger (UNCalendarNotificationTrigger).

Problem is -- once a user creates a meeting and the notification is set, the notification will happen even if the user deletes the meeting before the scheduled time. I want to use removePendingNotificationRequests to solve this problem. My question is: removePendingNotificationRequests accepts a string as the identifier for which notification request to remove. But, how do I pass this string to the request? And which string should I use? The meeting's name? I've been thinking about creating a new UUID attribute for my meeting entity so I'll always have a unique string, and passing that UUID to the onDelete function of the meetings.

Here's how I'm passing the meeting time to the notification function (this is inside a "Create" button in a AddNewMeeting view):

Code Block 
self.notificationManager.sendNotification(title: "Upcoming Meeting", subtitle: nil, body: "\(meetingName) will start in 5 minutes. Tap here to get meeting information.", time: meetingTime, meetingName: "\(meetingName)")

This is my current code for the list of meetings:

Code Block 
ForEach(items, id: \.self) { item in
       OneTimeRow(meeting: item)
}
.onDelete(perform: deleteItems)

And this is the delete function:

Code Block 
    private func deleteItems(offsets: IndexSet) {
        withAnimation {
            offsets.map { items[$0] }.forEach(viewContext.delete)
            do {
                try viewContext.save()
            } catch {
                print("There was an error deleting items")
            }
        }
     removePendingNotificationRequests(withIdentifiers identifiers: [String]) // <-- Is this how to put the function in?
    }

And this is the code for scheduling notifications:

Code Block 
    func sendNotification(title: String, subtitle: String?, body: String, time: Date, meetingName: String) {
            let content = UNMutableNotificationContent()
            content.title = title
            if let subtitle = subtitle {
                content.subtitle = subtitle
            }
            content.body = body
            let triggerDate = time - 5 * 60
                let trigger = UNCalendarNotificationTrigger(
                            dateMatching: Calendar.current.dateComponents([.timeZone, .year, .month, .day, .hour, .minute], from: triggerDate),
                            repeats: true
                )
        let request = UNNotificationRequest(identifier: "\(meetingName)", content: content, trigger: trigger)
                UNUserNotificationCenter.current().add(request, withCompletionHandler: nil)
        }

Thank you!

Code Block 
     removePendingNotificationRequests(withIdentifiers identifiers: [meetingID])