#729

To make it work requires the following:

• if you want to start it from server:
  • obtain pushToStart token from mobile device.
  • send an event with msg.live_activity = { 'event' => 'start', 'attributes-type' => ..., 'attributes' => ... } and token = pushToStartToken (not your regular apns token).
  • mobile device obtains pushToken and sends to server.
  • send update events with msg.live_activity = { 'event' => 'update', 'content-state' => ... } and token=pushToken.
  • in iOS 18 there is some improved flow for this which I haven't tested and it might require bigger surgery to rpush.
• if you want to start from the app:
  • app starts it, sends pushToken to server.
  • send update/end events same as above.

official docs: https://developer.apple.com/documentation/activitykit/starting-and-updating-live-activities-with-activitykit-push-notifications