Read the original article: Easy OAuth 2.0 Single Sign-on in Java
Different applications need different permissions. Although you might have a single resource server providing data to multiple apps, it’s often the case that you don’t want all users of application A to access application B.
In this tutorial, you’ll learn how to use Okta and Spring Boot to implement SSO with two client applications and a single resource server. You’ll also learn how to restrict access to the resource server based on app scores and how to use access policies to enforce authentication and authorization rules.
Read the original article: Easy OAuth 2.0 Single Sign-on in Java