Hi Everyone, I'm trying to use the result of a string function in a resource, but it won't let me. Is there a way to do this without creating a variable for each function result then using that in the resource?

ses_DomainIdentityVerification:
    type: aws:ses:DomainIdentityVerification
    properties:
      domain:
        fn::invoke:
          function: str:trimPrefix
          arguments:
            # arguments dictionary
            prefix: "production." # the prefix to trim
            string: "${ses_DomainIdentity.id}" # the string from which to trim it
...
Error: aws:ses/domainIdentityVerification:DomainIdentityVerification is not assignable from {domain: str:index:trimPrefixResult}

I think the following will work:

ses_DomainIdentityVerification:
    type: aws:ses:DomainIdentityVerification
    properties:
      domain:
        fn::invoke:
          function: str:trimPrefix
          arguments:
            # arguments dictionary
            prefix: "production." # the prefix to trim
            string: "${ses_DomainIdentity.id}" # the string from which to trim it
          result: result

result

in an fn block lets you set which field of the result to return rather than the overall result object.

@echoing-dinner-19531 wow! Thank you. Was this somewhere in the documentation? Because I sure didn't see it when I was looking

Yup, at https://www.pulumi.com/docs/reference/yaml/#fninvoke Hopefully some other useful bits on that page as well

@echoing-dinner-19531 Thanks again. It's obvious now that you pointed it out. I think my brain passed over that bit because it didn't have 'result' anywhere in it.