Richard McClellan

[Storage] Support downloading files in background

4

The `AWSS3StoragePlugin` creates a `TransferService`, which is an Android `Service`. As of Android O (API 26), a `Service` cannot be started in the background ([source](https://stackoverflow.com/a/46445436/282279)), which means that transfers cannot...

Currently, when a sync request returns an `Unauthorized` error for one of the models, the sync engine is stopped. This is not ideal, because if an `Unauthorized` error occurs with...

QueryField should support notContains operator

2

[This documentation](https://docs.amplify.aws/lib/datastore/data-access/q/platform/ios#predicates) indicates that DataStore supports the `notContains` operator, but it [does not appear to be implemented](https://github.com/aws-amplify/amplify-ios/blob/e2f7f64e2a501f3b2807481ca921e71710c82b22/Amplify/Categories/DataStore/Query/QueryField.swift#L34-L44) in the library. On amplify-js, It appears to be [supported](https://github.com/aws-amplify/amplify-js/blob/6e28eaf37525ce231d7793bf82a960046fc7f8f4/packages/datastore/src/types.ts#L295-L299). On Android, it...