Hi i am getting below error while trying to use bucket name

Calling [toString] on an [Output<T>] is not supported.

 o get the value of an Output<T> as an Output<string> consider

code :

const accessLogsBucket = new aws.s3.Bucket(dev-access-logs,{bucket:dev-access-logs});
    const accessbucketPolicy = new aws.s3.BucketPolicy(`${accessLogsBucket.id}`, {
      bucket: accessLogsBucket.bucket,
      policy: accessLogsBucket.bucket.apply(accessLogsBucketPolicy)
    })

Meaning you're trying to do something like:

accessLogsBucket.toString()

? If so, you'll need to use the

apply()

function. This behaves like a

promise<T>

and will allow you to access the underlying types of an

Output<T>

. As an example:

accessLogsBucket.id.apply(id => {
  console.log(id);
};

i am actually trying to access the bucket id from multiple locations with in the same file (created bucket using the same file)

You'll need to use the `apply()`` function to access the id of the bucket. See above example. Also, with typescript you can use the

interpolate

function to shorten usage. If you havent already I recommend reading this documentation.

interpolate

can't be used in the first parameter of a Pulumi resource, just fyi. If you want to create a resource with the name of an

Output<string>

you'll have to create the resource within an

apply

Hi @green-stone-37839 @steep-toddler-94095 I tried to use like below

const accessLogsBucket = new aws.s3.Bucket(dev-access-logs,{bucket:dev-access-logs});

    const bucketName = accessLogsBucket.id.apply(
      (id) => id
    );

when i tried to pass the bucketName to alb

"<http://alb.ingress.kubernetes.io/load-balancer-attributes|alb.ingress.kubernetes.io/load-balancer-attributes>": `access_logs.s3.enabled=true,access_logs.s3.bucket=${bucketName},access_logs.s3.prefix=dev-Access-Logs`

it still fails with below error

access_logs.s3.enabled=true,access_logs.s3.bucket=Calling [toString] on an [Output<T>] is not supported.

when i tried to print accessLogsBucket i get below output

Bucket {
      __pulumiResource: true,
      __transformations: [],
      __name: 'dev-access-logs',
      __providers: {},
      __protect: false,
      __aliases: [],
      id: OutputImpl {
        __pulumiOutput: true,
        resources: [Function (anonymous)],
        allResources: [Function (anonymous)],
        isKnown: Promise { <pending> },
        isSecret: Promise { <pending> },
        promise: [Function (anonymous)],
        toString: [Function (anonymous)],
        toJSON: [Function (anonymous)]
      },

how to access __name: 'dev-access-logs', ?

const accessLogsBucket = new aws.s3.Bucket(dev-access-logs,{bucket:dev-access-logs});
const accessbucketPolicy = accessLogsBucket.id.apply(id =>
  new aws.s3.BucketPolicy(id, {
    bucket: accessLogsBucket.bucket,
    ...
}))

it needs to be done within the

apply

so you can access the value as a

string

instead of an

Output<string>

You should not be using the id of one resource as the Pulumi name of another resource. Even inside an

apply

. It's an antipattern and will cause issues down the line. Pulumi names are like pointers in your stack. They're not intended to be dynamic. Think of a Pulumi name as an LHS (name of a variable) rather than an RHS (value). You don't want the name of a variable to be unknown at compile time.

agree with what tenwit said. I was too focused on just answering the question to see the antipattern