Set Cognito Verification Type to Link in CloudFormation

Question

I'm trying to figure out how I can set the verification type from Code (default) to Link in my CloudFormation template.

In the website I can set it here:

If I take a look at the docs there is nothing mentioned. My CloudFormation looks like

SomeUserPoolResourceName:
  Type: AWS::Cognito::UserPool
  Properties:
    UserPoolName: SomeResource_User_Pool
    EmailVerificationType: Link  # I want something like this
    EmailVerificationSubject: 'Your verification link'
    EmailVerificationMessage: 'Please click the link below to verify your email address. {##Verify Email##}' # fails because {####} is required
    AliasAttributes:
      - email
    AutoVerifiedAttributes:
      - email
    Policies:
      PasswordPolicy:
        - .... 
    Schema:
      - ....

Is it possible to configure this via CloudFormation?

Answer 1

No, it is not possible currently. As per the updated CreateUserPool API, a new VerificationMessageTemplate parameter will allow us to do this but cloudformation has yet to support this. AWS Support told that there is an existing feature request for the same. You can look into custom cloudformation resources as a workaround.

Answer 2

Try this:

SomeUserPoolResourceName:
  Type: AWS::Cognito::UserPool
  Properties:
    UserPoolName: SomeResource_User_Pool
    VerificationMessageTemplate:
       DefaultEmailOption: CONFIRM_WITH_LINK
    EmailVerificationSubject: 'Your verification link'
    EmailVerificationMessage: 'Please click the link below to verify your email address. {##Verify Email##}' # fails because {####} is required
    AliasAttributes:
      - email
    AutoVerifiedAttributes:
      - email
    Policies:
      PasswordPolicy:
        - .... 
    Schema:

Change this part:

EmailVerificationType: Link  # I want something like this

For:

VerificationMessageTemplate:
  DefaultEmailOption: CONFIRM_WITH_LINK