In this article, we will learn how to add user authentication with OAuth providers in your Next.js app. To do so, we’ll be using NextAuth.js, which is a user authentication solution that simplifies the whole process and has built-in support for many popular sign-in services.

What’s OAuth?

OAuth (Open Authorization) is an open standard for access delegation, commonly used as a way for Internet users to grant websites or applications access to their information on other websites but without giving them the passwords.