How to implement a live notification

To implement live notifications using broadcast push notifications for Live Activities, you can follow the steps outlined in the session "Broadcast updates to your Live Activities" from WWDC 2024. Here is a summary of the process:

1. Create a Channel:

   • You need to create a channel for the event you want to broadcast updates for. This channel will have a unique channel ID.
   • You can create a channel using the Push Notifications Console or directly via your app server when deploying in production.
   • Store the channel ID and share it with your app so it can subscribe to broadcast updates.

2. Subscribe to the Channel:

   • When a live activity is started in your app, request the channel ID from your remote server.
   • Use the channel ID to subscribe to push notifications for the live activity.
   • Pass the channel ID as a parameter when requesting the live activity, indicating to ActivityKit to subscribe for updates on this channel.

3. Send Broadcast Push Notifications:

   • Use the Push Notifications Console to send your first broadcast push notification.
   • Select the channel you created, and fill in the required information such as the channel ID, notification name, priority, and payload content.
   • Click send, and APNs will deliver the update to all devices subscribed to the channel.

For a detailed walkthrough, you can refer to the following chapter markers from the session:

• Introduction
• Get started
• Subscribe to updates
• Send broadcast push notifications

These steps will help you efficiently broadcast updates to a large audience using a single push notification.