cognitoUserPool with existing true create another userpool

This is a Bug Report

Description

• What went wrong?

If I use existing:true on a Cognito User Pool event, the userpool is created instead using that

• What did you expect should have happened?

Should use the existing one

• What was the config you used?

functions:
  preSignUp:
    handler: src/preSignUp.handler
    memorySize: 128
    timeout: 10
    layers:
      - { Ref: AuthToolsCommonLambdaLayer }
    events:
      - cognitoUserPool:
          pool: myUserPoolName
          trigger: PreSignUp
          existing: true

• What stacktrace or error message from your provider did you see?

Similar or dependent issues:

• #12345

Additional Data

• Serverless Framework Version you’re using: 1.50.0
• Operating System: Mac OS

[morgler]

@medikoo thanks. I figured it out and it worked by just using the plain name given to the user pool without any prefixes.

Might be helpful on this case for people also getting the error: use the plain name without prefixes (not the ID, not the ARN).

[adil-uddin]

@medikoo @pmuens is it possible to use findUserPoolById instead of findUserPoolByName to get existing Cognito user pools ? Currently, it seems the event only works when we use userPoolName instead of Id or Arn. I run multiple microservices in my app and use Outputs to refer to resources and we can only output the Arn or the Id of the user pool.