Hi, I'm pretty new to typescript. I can make my way around with help from google, but I've been solely using pulumi with yaml up till now. I recently created a pulumi program in typescript to dynamically create users and group memberships based on a list of groups and users

groupname:
  - userA
  - userB
group2:
  - userA
  - userC
etc

This was not convenient to do in yaml as I'd have 30+ permutations in just a simple setup of 10 groups with 3 users each. So I made a dynamic loop to do it in typescript. However now I want to reference a particular user as a stack output in another program. E.g. I want to add 'userA' in an IAM policy on a particular resource. Given that I don't have static user resources, how would I reference a user as an output in another program?

You cannot export from inside a loop. Assuming you want to export properties from each user, and assuming you don't want to limit the number of users in your app code, then the only option left is to export an entire collection of whichever property you need.

Grok has suggested something like this. Does this approach make sense? Method 1:

//inside my loop - I've redacted all the stuff above

        // Store the userId in the users object, keyed by username
        users[username] = user.apply(u => u.userId);
    });
});

// At the end of the program, outside the loop

// Export the users object
export const users = users;

In my other yaml program, I'd then reference the users like this:

variables:
  varKeyAdmins: '[
      "${typescriptProject.users["james"]}",
      "${typescriptProject.users["bruce"]}",
    ]'

Method 2:

//inside my loop - I've redacted all the stuff above

        // Store the userId in the users object, using a normalized key (e.g., "userJames")
        const userKey = `user${username.split("@")[0]}`; // e.g., "userJames" from "james@example.com"
        users[userKey] = user.apply(u => u.userId);
    });
});

// At the end of the program, outside the loop

// Export individual users dynamically
Object.keys(users).forEach(key => {
    (exports as any)[key] = users[key];
});

In my other program (yaml), I'd then reference the users like this:

In my other yaml program, I'd then reference the users like this:
variables:
  varKeyAdmins: '[
      "${typescriptProject.userJames}",
      "${typescriptProject.userBruce}",
    ]'

Yea, there's a lot of syntax errors in method 1, but that's the general idea.

Thanks for the tip! It did seem needlessly complex