Cognito用户池-缓存的用户ID

Question

I'm using Cognito User Pools for my mobile app. I'm storing user data to DynamoDB and S3 where necessary and using the user ID returned by getCachedUserID() to differentiate users.

What exactly is this cached user id (eg us-east-1:6fa3bcf6-45bd-4b93-bd68-5cfaffabc123) and can it be used to trace back to specific users in the Cognito user pool? I don't see any ID like this explicitly listed anywhere in the user pool console.

Thanks

Answer 1

getCachedUserId() returns the Identity pool ID and there currently is not an API that maps Identity Id to the User Pool ID.

A workaround is to create a custom mapping of user pool ID and the identity ID and use it to trace user pool ID from the corresponding cached user ID.