Untitled

Object #<IncomingMessage> has no method 'authenticate'

var express = require('express');
var router = express.Router();

var isAuthenticated = function (req, res, next) {
  // if user is authenticated in the session, call the next() to call the next request handler
  // Passport adds this method to request object. A middleware is allowed to add properties to
  // request and response objects
  if (req.isAuthenticated())
    return next();
  // if the user is not authenticated then redirect him to the login page
  res.redirect('/');
}

module.exports = function(passport){

  /* GET login page. */
  router.get('/', function(req, res) {
      // Display the Login page with any flash message, if any
    res.render('index', { message: req.flash('message') });
  });
........and so on

<!DOCTYPE html>
<html>
  <head>
    <title></title>
    <link rel='stylesheet' href='/stylesheets/style.css' />
  </head>
  <body>


    <form action="/login" method="post">
      <input type="text" name="username" placeholder="username" required autofocus>
      <input type="password" name="password" placeholder="password" required>

      <input type="submit" value="Login">
    </form>


    </body>
</html>

var LocalStrategy   = require('passport-local').Strategy;
var User = require('../models/user');
var bCrypt = require('bcrypt-nodejs');

module.exports = function(passport){

    passport.use('login', new LocalStrategy({
            passReqToCallback : true
        },
        function(req, username, password, done) {
            // check in mongo if a user with username exists or not
            User.findOne({ 'username' :  username },
                function(err, user) {
                    // In case of any error, return using the done method
                    if (err)
                        return done(err);
                    // Username does not exist, log the error and redirect back
                    if (!user){
                        console.log('User Not Found with username '+username);
                        return done(null, false, req.flash('message', 'User Not found.'));
                    }
                    // User exists but wrong password, log the error
                    if (!isValidPassword(user, password)){
                        console.log('Invalid Password');
                        return done(null, false, req.flash('message', 'Invalid Password')); // redirect back to login page
                    }
                    // User and password both match, return user from done method
                    // which will be treated like success
                    return done(null, user);
                }
            );

        })
    );


    var isValidPassword = function(user, password){
        return bCrypt.compareSync(password, user.password);
    }

}