package main
import (
  "github.com/go-martini/martini"
  "github.com/martini-contrib/sessions"
)
func main() {
	m := martini.Classic()
	store := sessions.NewCookieStore([]byte("secret123"))
	m.Use(sessions.Sessions("my_session", store))
	m.Get("/set", func(session sessions.Session) string {
		session.Set("hello", "world")
		return "OK"
	})
	m.Get("/get", func(session sessions.Session) string {
		v := session.Get("hello")
		if v == nil {
			return ""
		}
		return v.(string)
	})
  m.Run()
}