swift-actor-persistence

You can persist Swift Codable models safely by using an actor-based LocalRepository, which serializes access to shared state via actor isolation, maintaining an in-memory cache and performing atomic file writes for durable local storage.

The best way to implement thread-safe local storage in a Swift offline-first app is using a generic actor-based repository that constrains models to Codable and Identifiable, ensuring safe concurrent data access with synchronized in-memory caching and file persistence.

Yes, Swift actor isolation works with file persistence by synchronizing an in-memory cache within the actor and executing atomic file writes, providing a safe and serialized access path for shared local data.

To save and load identifiable Codable items, instantiate a generic LocalRepository for your model and call its save, loadAll, or delete methods to manage file-backed persistent data with synchronized in-memory caching.

Yes, you can implement this actor-based Swift persistence approach without external dependencies, as it relies purely on Swift 5.5+ native concurrency features, standard Codable serialization, and local file-backed storage with atomic writes.

You should not use actor-based persistence for local Swift storage if your app does not require concurrent data access or if your models do not conform to the Codable and Identifiable constraints required by the generic LocalRepository.