Datastore does not sync with Amplify Gen2 (Swift)

[aneaga]

Describe the bug

I set my Swift project with Amplify Gen2, according to https://docs.amplify.aws/swift/build-a-backend/data/set-up-data/.

Would like to use Datastore to ensure smooth offline use of my app.

However, even though save/query do work with local data, syncing data with Dynamo fails. The only clue I have is

The operation couldn’t be completed. (Amplify.DataStoreError error 0.)

Steps To Reproduce

1. Set up a Swift project according to https://docs.amplify.aws/swift/build-a-backend/data/set-up-data/.
2. Add AWSDataStorePlugin 
3. Use save/query with any model

Expected behavior

I expect my data to get synced with Dynamo.

Amplify Framework Version

2.46.1

Amplify Categories

DataStore

Dependency manager

Swift PM

Swift version

6.1

CLI version

12.14.4

Xcode version

16.3

Relevant log output

Beginning sync for HouseholdTask
...
Successfully completed execution for Auth.fetchSessionAPI
....
The operation couldn’t be completed. (Amplify.DataStoreError error 0.)
...

Is this a regression?

Yes

Regression additional context

No response

Platforms

iOS

OS Version

IOS 18.2

Device

Iphone 16 Pro

Specific to simulators

No response

Additional context

No response

[github-actions]

This has been identified as a feature request. If this feature is important to you, we strongly encourage you to give a 👍 reaction on the request. This helps us prioritize new features most important to you. Thank you!

[thisisabhash]

Hello, thank you for posting this.

Amplify Gen 2 currently only supports GraphQL APIs without DataStore.

https://docs.amplify.aws/swift/how-amplify-works/faq/

[aneaga]

Thanks for your input.
It is somewhat unexpected, given the backend is presumably very similar to Gen1, also GraphQL based.
I'd gladly thumbs-up the feature request if someone points me to it.
Otherwise, if you have any estimate for releasing Datastore support, I'd appreciate it. Right now, I don't see a good way to have a seamless offline/online model.

[github-actions]

This issue is now closed. Comments on closed issues are hard for our team to see.
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[aneaga]

Re-opening as this feature is super-important.

[alexgavrisco]

It's quite unexpected that datastore isn't supported. Can somebody confirm whether this item is on roadmap or will be included?

[harsh62]

@alexgavrisco @aneaga Supporting DataStore in Gen2 is not on the roadmap.