Understanding Role Retrieval in Guards

Before we delve into creating the AccessControlGuard for effective role-based access control, we must understand how to retrieve the role we’ve passed to the Roles decorator. In this lesson, we’ll apply the Roles decorator at the controller and method levels. Subsequently, we’ll demonstrate how to retrieve the corresponding roles within the AuthGuard. The code in this lesson serves practical demonstration purposes only, and it will not be in our final application.

Applying a decorator at the controller level

Applying the Roles decorator at the controller level sets the specified roles for all route handlers within that controller.