Spring Boot OAuth2 Single Sign Off (Logout)

After a lot of tests I have realized that this can be solved just with a redirect to the AuthServer and doing logout programmatically like this:

• In the client app (WebSecurityConfigurerAdapter):

  @Override
  protected void configure(HttpSecurity http) throws Exception {
      http
              .logout()
              .logoutSuccessUrl("http://your-auth-server/exit");
  }
  

• In the authorization server:

  @Controller
  public class LogoutController {
  
      @RequestMapping("/exit")
      public void exit(HttpServletRequest request, HttpServletResponse response) {
          // token can be revoked here if needed
          new SecurityContextLogoutHandler().logout(request, null, null);
          try {
              //sending back to client app
              response.sendRedirect(request.getHeader("referer"));
          } catch (IOException e) {
              e.printStackTrace();
          }
      }
  }
  

I have posted a sample app on github with a full example of this implementation.