This repository was archived by the owner on Mar 15, 2026. It is now read-only.

This repository was archived by the owner on Mar 15, 2026. It is now read-only.

Pre-signup lambda function for checking username and email existed in cognito userpool #134

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on Feb 18, 2019

Hi,
I have created cognito userpool and i gave email verification.It is showing username or email is existed after verification,I want to check username or email in userpool in pre-signup lambda function.
Is it possible?Any examples on that.

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