title: Check if user is logged in laravel 4
body: <p>Hi I am implementing a chat/inbox feature on my website.  When users are not logged in and receive a message from another user, the website will send an email to the recipient of the message.  However when the user is logged in it won't.</p>
  
  <p>My questions is how do I tell whether a user is logged in or not?  For example, if a user is logged in and then closes the browser my backend wouldn't know anything.</p>
  
  <p>Btw I'm building a Angularjs SPA with a restful API in Laravel 4.?</p>