This is an example of a Node application that is configured for SSO against a Keycloak server as the authentication provider. The SSO token uses JWT. There is no session involved - 100% of the authentication state is determined from the incoming JWT request cookie.
If you reached this page, you have been authenticated. This means that you had a JWT cookie and it was validated against the Keycloak server. A Cloud CSM user was created if one didn't already exist for this user.