Cognito User Attributes Modified Lambda Trigger

Question

I was planning on synchronizing my user pool attributes with my DynamoDB table, such as name and email. Unfortunately, I can't find a way to do this from Cognito's side. Would be nice if this existed, as I can avoid having to create my own API just to handle such a simple case of details update.

Is such a thing on Cognito's roadmap? Or is there any other option I could use that do not require constant data retrieval and matching?

Answer

You can add a pre token generation lambda. All the attributes defined in user pool would be available in event object. A call can be made to dynamodb to update any details available as attributes.

Cognito User Attributes Modified Lambda Trigger

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