hi all, in Terraform, we can set output to expose certain attribute of the resource of a module, so that other module can refer to it directly when creating other resources that depends on that attribute, how can I do that in Pulumi?

If by module you mean a different part of your project code then you can simply refer to this attribute.

If you are writing a ComponentResource, you expose them as properties of the class.

If you want to export the value so that other Pulumi project can use it, you have to export it as an output and use stack references.

Also have a look here: https://www.pulumi.com/docs/intro/concepts/resources/#registering-component-outputs

how do I refer to registerOuputs from another class?

in that case you are better defining properties for the class. e.g.

export class MyResource extends ComponentResource {
  readonly myOutput: Output<string>;
  constructor(name: string, args: any, opts?: ResourceOptions) {
   super("components:MyResource", name, args, opts);
   this.myOutput = "something";
  }
}

You can then just reference the properties when you use the Resource

const resource = new MyResource("my_resource",{});

const output = resource.myOutput

is it possible to refer to the output without initializing an instance of MyResource?

Output exists only because the instance of MyResource is created.

yes - I should have created a child resource in my example to make this clear - thanks Jakub

thanks @prehistoric-activity-61023 and @miniature-king-36473 Not sure if this makes sense, basically, coming back to the use case, I got the idea of exposing the email of the IAM account as a property in the IAM class, but what do I need to do at the other dependent class? I imported the IAM class and tried to refer to the email ID of the IAM account created by the IAM class but not sure how I can do that without instantiating the IAM class in the dependent class

@square-coat-62279 Can you post some code showing what you are trying to do? May make it clearer

also please share what programming language you currently use

thanks all, I think I managed to figure out the problem, i.e. I need to expose the email in the IAM class and then parse it into the other class in the index.ts; I can't refer to the email (or property of IAM class) in another class without instantiate it. Sorry for this noob question, newbie to OOP here 😳

That sounds about right 🙂