OAuth authorization on the site and JS applications?

Question

Mobile development

We are making a web service in JS and there will be builds for iOS and Android. At the same time, the user, having registered on the website, can then connect to his account through mobile applications.
In addition to OAuth, nothing came to mind, so we put Logins on the site, but for mobile phones, UI Logins is inconvenient and ugly.
Are there any solutions, modules, or for OAuth authorization in mobile JS applications?

Answer 1

look at JWT ( https://jwt.io)
a way to authenticate by token, without the need to store sessions in the database