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```import * as pulumi from "@pulumi/pulumi";
import * as aws from "@pulumi/aws";

const attempt1 = async () =&gt; {
  let instances = await aws.ec2.getInstances({}, { async: true });
  // Property 'forEach' does not exist on type 'GetInstancesResult'.ts(2339)
  instances.forEach((instance) =&gt; {
    console.log(instance.instanceTags);
  });
};

const attempt2 = async () =&gt; {
  let instances = pulumi.output(aws.ec2.getInstances({}, { async: true }));
  // Property 'forEach' does not exist on type 'Output&lt;UnwrappedObject&lt;GetInstancesResult&gt;&gt;'.ts(2339)
  instances.forEach((instance) =&gt; {
    console.log(instance.instanceTags);
  });
};

const attempt3 = async () =&gt; {
  let instances = pulumi.output(aws.ec2.getInstances({}, { async: true }));
  instances.apply((instances) =&gt; {
    // Property 'forEach' does not exist on type 'UnwrappedObject&lt;GetInstancesResult&gt;'.ts(2339)
    instances.forEach((instance) =&gt; {
      console.log(instance.instanceTags);
    });
  });
};```


Trying to get something done based on <https://www.pulumi.com/docs/intro/concepts/programming-model/#resource-get> and <https://www.pulumi.com/docs/reference/pkg/aws/ec2/getinstances/>

As the API doc you linked states, the function returns a type of `Promise&lt;GetInstancesResult&gt;` which is not an array you can iterate over. You’ll see that that interface has a bunch of fields on which you can interate.

So after you’ve awaited it, you still have a `GetInstancesResult` against which you’ll want to use one of its properties like `ids` or `instanceTags` to iterate

Gotcha, thanks. Is it possible to run this code to query the existing infrastructure created with other tools, without (re-)creating or importing the infrastructure to pulumi?

Just trying to run the code gets me a
```(node:28738) UnhandledPromiseRejectionWarning: Error: Program run without the Pulumi engine available; re-run using the `pulumi` CLI```
and `pulumi preview` gets me
```Manage your Pulumi stacks by logging in.
Run `pulumi login --help` for alternative login options.
Enter your access token from <https://app.pulumi.com/account/tokens>
    or hit &lt;ENTER&gt; to log in using your browser                   : ```
I was wondering if there is a low-commitment way to check things out

You can use a local file system backend if you don’t want to setup a free Pulumi account (see <https://www.pulumi.com/docs/intro/concepts/state/#backends>)