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Generated on 9/6/2024
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SwiftData is a framework introduced by Apple to simplify the process of building your app's model layer and persisting data across app launches. It provides features such as persistence, schema modeling, migration, graph management, and synchronization with CloudKit. SwiftData allows you to define your schema using a lightweight API, making it easy to work with queries and iterate on views.
One of the key features of SwiftData is its flexibility in data storage. By default, it uses CoreData, but you can configure it to use custom data stores, allowing you to store data using alternative backends like SQLite, remote web services, or JSON files. This is achieved through the new Datastore protocol, which supports any persistence backend.
SwiftData also introduces new capabilities such as indexing and unique constraints to optimize queries and ensure data integrity. Additionally, it provides a history API to track changes in the datastore, which is useful for syncing local changes with remote services.
For more detailed information on SwiftData, you can refer to the sessions "What’s new in SwiftData" and "Create a custom data store with SwiftData" from WWDC 2024.
Create a custom data store with SwiftData
Combine the power of SwiftData’s expressive, declarative modeling API with your own persistence backend. Learn how to build a custom data store and explore how to progressively add persistence features in your app. To get the most out of this session, watch “Meet SwiftData” and “Model your schema with SwiftData” from WWDC23.
What’s new in SwiftData
SwiftData makes it easy to add persistence to your app with its expressive, declarative API. Learn about refinements to SwiftData, including compound uniqueness constraints, faster queries with #Index, queries in Xcode previews, and rich predicate expressions. Join us to explore how you can use all of these features to express richer models and improve performance in your app. To discover how to build a custom data store or use the history API in SwiftData, watch “Create a custom data store with SwiftData” and “Track model changes with SwiftData history”.
Platforms State of the Union
Discover the newest advancements on Apple platforms.