Calling mongodb in node

gistfile1.js

var Db = require('mongodb').Db;
var Connection = require('mongodb').Connection;
var Server = require('mongodb').Server;
var BSON = require('mongodb').BSON;
var ObjectID = require('mongodb').ObjectID;

exports.index = function(req, res) {

  this.db = new Db('node-hipchat-logger',
    new Server('localhost', 27017, {auto_reconnect: true}, {}));
  this.db.open(function(){});

  this.db.collection('logs', function(err, coll) {
    coll.insert( { lol: 1 }, function(err, document) {
      console.log(document);
    });
  });
}