Setting up hangs on authenticate()

I am trying to setup the Google Docs API into a Node-JS file hosted on an ubuntu server. I've used the NodeJS Google Docs API Quickstart information and searched around for alternative answers but am unsure of what is the solution. The correct credentials.json is in place, however, when running:
`client = await authenticate({
scopes: SCOPES,
keyfilePath: CREDENTIALS_PATH,
});`
It simply hangs for eternity, presumably this would be when a pop-up would appear on a Windows PC but this is not the case and no alternative seems to be obviously available.