router.get('/restful',function(req,res,next){
  var resultArray=[];
  mongo.connect(url,function(err,db){
    assert.equal(null,err);
    var cursor=db.collection('users').find();
    cursor.forEach(function(doc,err){
      assert.equal(null,err);
      resultArray.push(doc);
      req.session.resultArray=resultArray;
    },function(){
      db.close();
      res.render('restful',{items:resultArray});
          });

});
});