p := &redis.Pool{
        MaxIdle:     3,
        IdleTimeout: 240 * time.Second,
        Dial:        func() (redis.Conn, error) {
                return redis.Dial("tcp", "localhost:6379")
        },
}
str := redis_store.New(p)
s := &server{
        jeff: jeff.New(str, jeff.Insecure),
}
router.HandleFunc("/", s.indexPageHandler)
router.HandleFunc("/register", s.registerFormHandler).Methods("GET")
router.HandleFunc("/register", s.registerHandler).Methods("POST")
router.HandleFunc("/login", s.loginHandler).Methods("POST")
router.Handle("/logout", s.jeff.WrapFunc(s.logoutHandler)).Methods("POST")
router.Handle("/internal", s.jeff.WrapFunc(s.internalPageHandler))
router.Handle("/public", s.jeff.PublicFunc(s.publicPageHandler))

http.Handle("/", router)
http.ListenAndServe(":8000", nil)

func (s *server) loginHandler(w http.ResponseWriter, r *http.Request) {
        name := r.FormValue("name")
        pass := r.FormValue("password")

        user, err := authUser(name, pass)
        if err != nil {
                w.WriteHeader(400)
                return
        }
        err := s.jeff.Set(r.Context(), w, []byte(user.Email))
        if err != nil {
                w.WriteHeader(500)
                panic(err)
        }
        http.Redirect(w, r, "/internal", 302)
}

// This page won't be reached without an active session if wrapped
// with jeff.Wrap
func (s *server) internalPageHandler(w http.ResponseWriter, r *http.Request) {
        sess := jeff.ActiveSession(r.Context())
        user := loadUser(sess.Key)
        fmt.Fprintf(w, internalPage, user)
}

// This page will be reached without an active session if wrapped
// with jeff.Public.  ActiveSession will return an empty session if there
// is no session.
func (s *server) publicPageHandler(w http.ResponseWriter, r *http.Request) {
        sess := jeff.ActiveSession(r.Context())
        user := loadUser(sess.Key)
        fmt.Fprintf(w, publicPage, user)
}

$ redis-cli

127.0.0.1:6379> keys *
1) "c@example.com"
2) "a@example.com"
3) "b@example.com"

127.0.0.1:6379>