is there a recommended way to validate infer the type of a s

Question

is there a recommended way to validate infer the type of a stack output when referring to it from another stack for example i have a VPC stack that outputs an array of subnet IDs that I grab with a stack reference like so ```const stackRef = new pulumi StackReference vpc dev const subnetIds = stackRef requireOutput subnetIds ``` given the above `subnetIds` will be of type `Output lt any gt ` but I want to be able to loop over the values because I need to create a resource for each subnet is creating the resources inside an `apply ` the only option it seems weird not being able to directly access the values since stack outputs should always be known prior to a `pulumi up` or `preview` right

little-cartoon-10569 · Answer

They won t always been known since the other stack could be running at the same time Pulumi has to support this case

little-cartoon-10569 · Answer

Generally outputs from StackReferences are used as inputs for other resources so this problem doesn t occur Can you split your outputs to be a collection of outputs instead of an output that is a collection

little-cartoon-10569 · Answer

That way each output can be used directly as an input

little-cartoon-10569 · Answer

My equivalent code exports `privateSubnet1Id` `isolatedSubnet2Id` etc

breezy-butcher-78604 · Answer

gt They won t always been known since the other stack could be running at the same time Pulumi has to support this case ah ok that makes sense gt Generally outputs from StackReferences are used as inputs for other resources yeah thats typically what happens for me as well but in this case I need to do a foreach over both subnet IDs and route table IDs which i guess isn t possible without an `apply `

little-cartoon-10569 · Answer

Yes if you export a complex output then you re likely to have to handle it either in an apply or in a custom provider

little-cartoon-10569 · Answer

Either rework your source stack to export simple outputs or add the complex code in your destination stack

breezy-butcher-78604 · Answer

no worries thanks for your help yet again D