text: var exports = module.exports = {}
   
  
  //sign up
  exports.signup = function(req, res) {
   
      res.render("signup");
   
  }
  
  //sign in
  exports.signin = function(req, res) {
   
      res.render("signin");
   
  }
  
  exports.logout = function(req, res) {
   
      req.session.destroy(function(err) {
   
          res.redirect("/");
   
      });
   
  }