Decodable Swiftdata ​

A proof-of-concept for building offline-first iOS apps with Codable conforming models

Since Apple announced the new SwiftData framework at WWDC23, I’ve been SUPER eager to try it out. It’s a new framework that matches SwiftUI’s style and makes working with persistent data (CoreData) much easier. Now that it's out of beta, I spent an hour messing around with it and put together a quick proof-of-concept using this brand-spanking-new framework.

I specifically wanted to see how easy it would be to conform a persistent data model to the Codable protocol to make working with remote and local persisted data easier.

The following approach could be helpful if you’re building an offline-capable iOS app that works with remote data, persists on the device, and syncs with the server when connected to the internet.