https://aws.amazon.com/blogs/mobile/using-the-amazoncredentialsprovider-protocol-in-the-aws-sdk-for-ios/
Using the AmazonCredentialsProvider Protocol in the AWS SDK for iOS | Front-End Web & Mobile
Jan 15, 2021 - Version 2 of the AWS Mobile SDK This article and sample apply to Version 1 of the AWS Mobile SDK. If you are building new apps, we recommend you use Version 2....
sdk for ios