Correct way to retrieve token for FCM - iOS 10 Swift 3

Question

i had implement Firebase with FirebaseAuth/FCM etc and did sent notification successfully through Firebase Console.

However i would need to push the notification from m

Answer 1

confirm to MessagingDelegate protocol.

then you can add below delegate method and get the Firebase Token. (documentation https://firebase.google.com/docs/cloud-messaging/ios/client )

func messaging(_ messaging: Messaging, didReceiveRegistrationToken fcmToken: String) {
        // send to remote server
        InstanceID.instanceID().instanceID { result, error in
            if let error = error {
                print("Error fetching remote instance ID: \(error)")
            } else if let result = result {
                print("Remote instance ID token: \(result.token)")
            }
        }
    }