push notifications
Generated on 8/12/2024
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In the session titled "Broadcast updates to your Live Activities" from WWDC 2024, Apple introduced a new way to use push notifications to broadcast updates to a large audience with a single push notification. This is particularly useful for scenarios where many people are following the same event, such as a sports game or a flight update.
The key points about broadcast push notifications include:
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Channel Concept: Each event is associated with a unique channel ID. For example, different sports games or flights will have different channels. Live activities that need updates will subscribe to these channels.
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Efficient Delivery: Instead of sending individual push notifications to each device, a single push notification is sent to a channel, and APNs (Apple Push Notification service) delivers it to all subscribed devices.
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Channel Management: Channels are independent of live activities. Even if there are no active subscribers, the channel ID remains valid. However, the number of active channels is limited, so it's important to manage them using the channel management API.
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Getting Started: To use broadcast push notifications, developers need to enable the broadcast capability in the developer portal, create channels using the push notifications console, and integrate the new APNs API into their server.
For more detailed information, you can refer to the session chapter markers, such as the Get started section.
