Login system using Passport.js is always executing “failureRedirect” (nodejs)

I'm doing a tutorial and I'm stuck in the login area. When I'm login in with Passport.js it always executing "failureRedirect" in authenticate.

After trying to debug replacing the router.post('login') route I received the following message:

Error: null User: false Info: {"message":"Missing credentials"}

After Reading on some forums I think that the problem could be related to body-parser. I've been trying to solve the problem but I haven't been able yet. I'd appreciate the help of a most experienced node.js programmer.

The structure of the project is: app.js routes: users.js models: user.js

user.js

var express = require('express');
var router = express.Router();
var multer = require('multer');
var passport = require('passport');
var LocalStrategy = require('passport-local').Strategy;
var bodyParser = require('body-parser');

var User = require('../models/user');

var upload = multer({ dest: './uploads' });

// create application/json parser
var jsonParser = bodyParser.json();

// create application/x-www-form-urlencoded parser
var urlencodedParser = bodyParser.urlencoded({ extended: false });

/* GET users listing. */
router.get('/', function(req, res, next) {
  res.send('respond with a resource');
});

router.get('/register', function(req, res, next) {
  res.render('register', {
    title: 'Register'
  });
});

router.get('/login', function(req, res, next) {
  res.render('login', {
    'title': 'Login'
  });
});

router.post('/register', upload.single('profileimage'), function (req, res, next) {
  //Get Form Values
  var name = req.body.name;
  var email = req.body.email;
  var username = req.body.username;
  var password = req.body.password;
  var password2 = req.body.password2;


  // Check for Image Field
  if(req.files && req.files.profileimage){
    console.log('Uploading File...');

    // File Info
    var profileImageOriginalName = req.files.profileimage.originalname;
    var profileImageName = req.files.profileimage.name;
    var profileImageMime = req.files.profileimage.mimetype;
    var profileImagePath = req.files.profileimage.path;
    var profileImageExt = req.files.profileimage.extension;
    var profileImageSize = req.files.profileimage.size;
  } else {
    // Set a Default Image
    var profileImageName = 'noimage.png';
  }

  // Form Validation
  req.checkBody('name', 'Name field is required').notEmpty();
  req.checkBody('email', 'Email field is required').notEmpty();
  req.checkBody('email', 'Email not valid').isEmail();
  req.checkBody('username', 'Username field is required').notEmpty();
  req.checkBody('password', 'Password field is required').notEmpty();
  req.checkBody('password2', 'Passwords do not match').equals(req.body.password);

  // Check for errors
  var errors = req.validationErrors();

  if(errors){
    res.render('register', {
      errors: errors,
      name: name,
      email: email,
      username: username,
      password: password,
      password2: password2
    });
  } else {
    var newUser = new User({
      name: name,
      email: email,
      username: username,
      password: password,
      profileImage: profileImageName
    });

    // Create User
    User.createUser(newUser, function (err, user) {
      if(err) throw err;
      console.log(user);
    });

    //Success Message
    req.flash('success', 'You are now registered and may log in');

    res.location('/');
    res.redirect('/');
  }
});

passport.serializeUser(function(user, done) {
  done(null, user.id);
});

passport.deserializeUser(function(id, done) {
  User.getUserById(id, function(err, user) {
    done(err, user);
  });
});

passport.use(new LocalStrategy(
  function (username, password, done) {
    User.getUserByUsername(username, function (err, user) {
      if(err) throw err;
      if(!user){
        console.log('Unknown User');
        return done(null, false, {message: 'Unknown User'});
      }

      User.comparePassword(password, user.password, function (err, isMatch) {
        if(err) throw err;
        if(isMatch){
          return done(null, user);
        } else {
          console.log('Invalid Password');
          return done(null, false, {message:'Invalid Password'});
        }
      });
    });
  }
));

router.post('/login', jsonParser, passport.authenticate('local', {
  successRedirect: '/',
  failureRedirect: '/users/login',
  failureFlash: true //'Invalid username or password'
}), function (req, res) {
  console.log('Authentication Successful');
  req.flash('success', 'You are logged in');
  res.redirect('/');
});

router.post('/login', passport.authenticate('local', function(err, user, info) {
  console.log("authenticate");
  console.log(err);
  console.log(user);
  console.log(info);
}), function (req, res) {
  console.log('Authentication Successful');
  req.flash('success', 'You are logged in');
  res.redirect('/');
});

module.exports = router;

user.js

var mongoose = require('mongoose');
var bcrypt = require('bcrypt');

mongoose.connect('mongodb://localhost/nodeauth');

var db = mongoose.connection;

// User Schema
var UserSchema = mongoose.Schema({
  username: {
    type: String,
    index: true
  },
  password: {
    type: String,
    required: true,
    bcrypt: true
  },
  email: {
    type: String
  },
  name:{
    type: String
  },
  profileimage:{
    type: String
  }

});

var User = module.exports = mongoose.model('User', UserSchema);

module.exports.comparePassword = function(candidatePassowrd, hash, callback) {
  bcrypt.compare(candidatePassowrd, hash, function (err, isMatch) {
    if(err) return callback(err);
    callback(null, isMatch);
  });
}

module.exports.getUserById = function (id, callback) {
  User.findById(id, callback);
}

module.exports.getUserByUsername = function (username, callback) {
  var query = {username: username};
  User.findOne(query, callback);
}

module.exports.createUser = function (newUser, callback) {
  bcrypt.hash(newUser.password, 10, function (err, hash) {
    if(err) throw err;

    // Set hashed pw
    newUser.password = hash;

    // Create User
    newUser.save(callback);
  });
}

app.js

var express = require('express');
var path = require('path');
var favicon = require('serve-favicon');
var logger = require('morgan');
var expressValidator = require('express-validator');
var cookieParser = require('cookie-parser');
var session = require('express-session');
var passport = require('passport');
var LocalStrategy = require('passport-local').Strategy;
var bodyParser = require('body-parser');
var multer = require('multer');
var flash = require('connect-flash');
var mongo = require('mongodb');
var mongoose = require('mongoose');
var db = mongoose.connection;

var routes = require('./routes/index');
var users = require('./routes/users');

var app = express();

// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');

// Handle File Uploads
// app.use(multer({dest:'./uploads'}));
var upload = multer({ dest: './uploads' });

// uncomment after placing your favicon in /public
//app.use(favicon(path.join(__dirname, 'public', 'favicon.ico')));
app.use(logger('dev'));

app.use(bodyParser.urlencoded({ extended: false }));
app.use(bodyParser.json());

// Handle Express Sessions
app.use(session({
  secret: 'secret',
  saveUninitialized: true,
  resave: true
}));

// Passport
app.use(passport.initialize());
app.use(passport.session());

// Validator
app.use(expressValidator({
  errorFormatter: function(param, msg, value) {
    var namespace = param.split('.')
      , root    = namespace.shift()
      , formParam = root;

    while(namespace.length) {
      formParam += '[' + namespace.shift() + ']';
    }
    return {
      param : formParam,
      msg   : msg,
      value : value
    };
  }
}));
// app.use(expressValidator({
//   errorFormatter
// }));

app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));

app.use(flash());
app.use(function (req, res, next) {
  res.locals.messages = require('express-messages')(req, res);
  next();
});

app.use('/', routes);
app.use('/users', users);

// catch 404 and forward to error handler
app.use(function(req, res, next) {
  var err = new Error('Not Found');
  err.status = 404;
  next(err);
});

// error handler
app.use(function(err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};

  // render the error page
  res.status(err.status || 500);
  res.render('error');
});

module.exports = app;

Thanks for your help :)

via Rafa