无法使用codeigniter与node.js连接

Question

I am building a voting system using codeigniter framework. There is a page in which I am showing a list of 10 people with there total vote and I wanted to make these voting count in realtime e.g voting count should change when user votes.

Now to make all the finalist total votes real time, I am using node.js but unfortunately the program is not getting the total count.

var express    = require("express");
var mysql      = require('mysql');

var connection      =    mysql.createConnection({
    host     : 'localhost',
    user     : 'root',
    password : '',
    database : 'voting_sys',
});

var app = express();

connection.connect(function(err){
if(!err) {
    console.log("Database is connected ... nn");    
} else {
    console.log("Error connecting database ... nn");    
}
});

app.get("/",function(req,res){
connection.query("SELECT count('*') as votes from voting where finalist_id_fk=1", function(err, rows, fields) {
connection.end();
  if (!err)
    console.log('The solution is: ', rows);
  else
    console.log('Error while performing Query.');
  });
});

app.listen(3000);

When I run this file it only show database is connection where as I want total votes

Please help me. How can I achieve it and how can I run this node.js file.