getSignedUrl called synchronously ?

I have a simple functions that returns a signed url :

  var   options = config.gs
    ,   expires = Math.round(Date.now() / 1000) + (60 * 60 * 24 * 14)
    ,   bucket  = project.storage.bucket({bucketName: config.gs.bucket, credentials: config.gs })

  options.action  = 'read'
  options.expires =  expires// 2 weeks.
  options.resource= url

  signed_url = bucket.getSignedUrl(options, function(err, url_signed) {})
  return signed_url

I cannot understand how to call it synchronously.

The signed_url is always undefined but inside the callback the url_signed is correctly set.

So if I log the signed_url and the url_signed i get:

signed_url: undefined
url_signed: http://.......

I think this is the fault of our documentation. http://googlecloudplatform.github.io/gcloud-node/#/docs/v0.8.0/storage?method=getSignedUrl shows that it's returned synchronously, but that's actually not the case. You have to use it asynchronously as you've discovered.

Internally, a connection is required in order to generate a signed url, which is why it must be async. Sorry for the confusion and thanks for bringing attention to this-- I'll go and update the example.