lift Session management

Question

I am new to lift. I have been working with MVC model so far and using basic session management model i.e. storing a token in the session and check on each request. I am trying to do the same with lift, but my session getting expired abruptly. even some time I just logged in and it logged out. I have analysis that whenever I gets log message like this: INFO - Session ucjrn5flnq9q1ke52z5zixgtt expired

I have searched but I couldn't find any step by step tutor

Answer 1

Sessions are managed by your servlet container. Which one are you using? You should look at the container's documentation.

Answer 2

Do not attempt to use S.get et al to access session bound information. This is just plain dangerous. Do it like this:

class Thing {
  object SessionThing extends SessionVar[Box[String]](Empty)
  ...
  def someMethod = {
    ...
    SessionThing.is // returns you a Box[String].
    // operates on the session variable if it exists, 
    // otherwise provides a sensible default
    SessionThing.is.map(_.toLowerCase).openOr("default") 
    ...
  }
}

You need to understand the snippet and state lifecycles really, as it seems you're not fully understanding how lift's session mechanics work.