user.routes.js

var express     = require('express');
var router      = express.Router();
var jwt         = require('jsonwebtoken');
var bcrypt      = require('bcryptjs');
var hash        = 'superSecret';
var config      = require('../config/database');

User = require('../models/user.model.js');

// Create new User
router.post('/', function(req, res){
  var email = req.body.email;
  var password = req.body.password;
  var user = new User({
    email: email,
    password: password
  });
  // Pre hook will take care of password creation
  return user.save()
  .then(function(user) {
    // return user successful and token
    console.log('get ready to prepare the token');
  });
});

Ok so passing a user object now back into the Model