Newer sample available?

According to [How to get started with OAuth2](https://community.brightspace.com/s/article/How-to-get-started-with-OAuth-2-0?t=1665767321487) there is a newer version of this code available - however the link is broken: [sample code](https://github.com/Brightspace/oauth2.0-client-example)

Can anyone point towards the newer version of this repo (preferably in Node.JS)