swift-actor-persistence

To prevent data races in Swift local storage, use actors to serialize access to shared mutable state. An actor-based LocalRepository isolates concurrent reads and writes, eliminating thread-safety issues by design without requiring manual locks.

The best way to implement offline-first caching in Swift is using an actor-based repository with an in-memory cache backed by durable file storage. This approach ensures fast reads and reliable persistence while serializing concurrent access to prevent data races.

To use actors for thread-safe file persistence in Swift, initialize a LocalRepository for your Codable model. The actor serializes all access to shared data and performs atomic file writes, ensuring safe concurrent operations across your app.

Yes, you can use an actor-based repository for offline-first Swift apps. It provides synchronous initialization for safe startup, in-memory caching for fast reads, and durable file-backed storage to handle concurrent access to local repositories without data races.

A Swift app crashes during concurrent local repository access due to data races on shared mutable state. Using an actor-based LocalRepository isolates this state, serializing concurrent reads and writes to eliminate thread-safety crashes by design.