如何在另一个堆栈参数中导入 cloudformation 堆栈 output？

Question

We are trying to import the output value of the base stack into the new stack parameter rather than the resource itself. Please help us to achieve that.

BASE STACK - Below is the output defined in the base stack

Outputs:
    Asset:
        Value:
            Ref: Asset
        Export:
            Name:
                'Fn::Sub': '${AWS::StackName}-Asset'

We would like to import this value into the new stack but the CFN is throwing an error that Every Default member must be a string .

NEW STACK

Parameters:
    BaseStackNameParameter:
        Type: String
        Default: assetstack
        
    AssetVal:
        Type: String
        Default: !ImportValue
                  'Fn::Sub': '${BaseStackNameParameter}-Asset'

Answer 1

The error is correct. You can't do this . Such functionality is not supported by CloudFormation.