I am writing a web app for pinball players which requires them to login to the app. Most of my potential users already have matchplay.events accounts and stay logged into matchplay.events in another browser window or tab.

I would like to allow them to login to my web app without needing a username or password if they are already logged in to matchplay.events. OAUTH support from matchplay.events would allow me to offer this.

This would work in the same way that people can login to the uservoice website using Facebook or Google (except matchplay.events would play the role of Facebook or Google).

https://oauth.net/getting-started/

Thanks.