How do I use a deferred property
Asked on 06/13/2025
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To use a deferred property in your app, you can take advantage of the new deferred property macro introduced in the session Explore new advances in App Intents. A deferred property is useful when you have a property whose value is expensive to fetch, such as data from a network server, and you want to fetch it only when explicitly requested by the system.
Here's a brief overview of how to implement a deferred property:
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Mark the Property as Deferred: You can mark a property as deferred to provide an asynchronous getter. This allows you to perform network calls or other expensive operations only when the system requests the property, rather than when the entity is created or passed around.
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Use Asynchronous Getter: Inside the deferred property, you can call methods that perform the necessary operations, such as network requests. The async getter will be invoked only when system features, like Shortcuts, request the property.
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Choose Wisely: It's recommended to use a computed property over a deferred property due to lower system overhead. However, if the property is too expensive to calculate, falling back to a deferred property is a viable option.
For more details, you can refer to the session Explore new advances in App Intents at the timestamp 21:02.
Explore new advances in App Intents
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