Hello I m attempting to use stack references with Typescript

Question

Hello I m attempting to use stack references with Typescript and I m having trouble figuring out the best way to get the stack output reference as the correct type When I do a `requireOutput ` from the stack reference it always ends up as `Output lt any gt ` type Is there a way to set the expected type of the output so I can get something like `pulumi Output lt string gt ` or other types

orange-policeman-59119 · Answer

If you re quite confident you can usually cast the type via `as Output lt string gt ` or if that doesn t work `as any as Output lt string gt ` A helper library like this one contains type guards like is string You d need to use that inside an Apply and decide how to handle the else case throwing an error in the Apply would work <https www npmjs com package sindresorhus is|https www npmjs com package sindresorhus is>

orange-policeman-59119 · Answer

I think you d end up with ```requireOutput apply x = gt if is string x return x else throw new Error expected a string ```

kind-room-82948 · Answer

Thanks < orange policeman 59119> very helpful For anyone that stumbles upon this I also found you can do an await for stack references that aren t secrets Makes it much easier to handle them since they end as default string types instead of pulumi output strings ```export = async = gt const pulumiStackReference = new pulumi StackReference `otherStack` const myOutput = await pulumiStackReference requireOutputValue myOutput ```