Does this skill require Swift 5.5?

Yes, this skill leverages the actor model and modern concurrency features introduced in Swift 5.5 and later.

Is this pattern suitable for large datasets?

While the in-memory cache provides O(1) access, this JSON file-backed pattern is best for small to medium datasets. For extremely large datasets, a database like SQLite or Realm might be more appropriate.

How does it handle app crashes during a write?

The implementation uses atomic write options which ensure that the file is either written completely or not at all, preventing partial or corrupted data files.

Why use actors instead of DispatchQueue for persistence?

Actors provide compiler-enforced thread safety, which reduces the risk of manual synchronization errors and makes the code more readable and maintainable compared to legacy lock-based approaches.

Swift Actor Persistence

Name: Swift Actor Persistence
Author: Fabio29T

byFabio29T

0•

Mobile Development

Implements thread-safe, actor-based data persistence with in-memory caching and file storage for Swift applications.

This skill provides robust patterns for building data persistence layers in Swift using the actor model to ensure thread safety and data integrity. By combining high-performance in-memory caching with durable, atomic file-backed storage, it eliminates common data races at compile time without the need for manual synchronization like locks or DispatchQueues. It is particularly effective for developers building offline-first iOS and macOS applications who need a modern, safe approach to managing shared mutable state and local storage.

主要功能

01Generic implementation for any Codable and Identifiable models

02Compiler-enforced thread safety using Swift Actors

03Atomic file-backed storage to prevent data corruption

040 GitHub stars

05High-speed in-memory caching for O(1) data lookups

06Seamless integration with Swift UI and @Observable view models

使用场景

01Implementing thread-safe user preferences or application settings modules

02Developing offline-first mobile applications with local JSON storage

03Managing shared mutable state across concurrent tasks in iOS apps

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add fabio29t/everything-claude swift-actor-persistence

For use in Claude.ai and ChatGPT

主要功能

01Generic implementation for any Codable and Identifiable models

02Compiler-enforced thread safety using Swift Actors

03Atomic file-backed storage to prevent data corruption

040 GitHub stars

05High-speed in-memory caching for O(1) data lookups

06Seamless integration with Swift UI and @Observable view models

使用场景

01Implementing thread-safe user preferences or application settings modules

02Developing offline-first mobile applications with local JSON storage

03Managing shared mutable state across concurrent tasks in iOS apps

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add fabio29t/everything-claude swift-actor-persistence

For use in Claude.ai and ChatGPT