Today, we are announcing the Developer Preview of the Amplify iOS Library that has been rewritten to exclusively use Swift. This initial release enables Swift developers to add cloud-based app features, including Auth, Storage, Data, and APIs, without having to transition to Objective-C to debug or contribute to the underlying open-source code. In coming releases, we plan to add support for additional Amplify use cases, as well as Swift-based language features like structured concurrency.
Source:: Amazon AWS