how does nextauth work?

[fervent rune]

The biggest conceptual road block for me when using next auth is: sure you can grab the user session from the server side to client side, and that gives you access to the profile information from the desired OAuth account …. But then how does one go about adding those users to your database and allowing them to create custom content like posts, comments, likes etc

Seems like the only thing next auth is useful for is oauth sign up, and grabbing whatever details from that it needs to “verify” a user is signed in

I want to make it so users simply sign up with a social media provider, and that email and username being added to my database alongside all the other User schema properties I want it to have