(Quick Reference) ## session ### Purpose The session object is an instance of the Servlet API’s HttpSession class. ### Examples
    class UserController {

        def logout() {
            log.info "User agent: " + request.getHeader("User-Agent")
            session.invalidate()
            redirect(action: "login")
        }

        def login() {}
    }
### Description The HttpSession class is useful for associated session data with a client.
| The additional methods added to the session object are documented in the Grails Servlet API reference guide
| Quick Reference (hide)