add few models, keep everything apart for now, maybe separate routes

api/routes/userRoutes.js

@@ -1,9 +1,15 @@
 'use strict';
 
 module.exports = function(app) {
+    var group = require('../controllers/groupController');
+    var permission = require('../controllers/permissionController');
     var user = require('../controllers/userController');
 
-    // TODO  Routes
+    app.route('/group')
+        .get(group.list_all)
+        .post(group.add_group);
+        
+    // TODO  User Routes
     app.route('/users')
         .get(user.list_all)
         .post(user.add_user);

server.js

@@ -2,6 +2,8 @@ var express = require('express'),
 app = express(),
 port = process.env.PORT || 3000,
 mongoose = require('mongoose'),
+Group = require('./api/models/groupModel'),
+Permission = require('./api/models/permissionModel'),
 User = require('./api/models/userModel'), //created model loading here
 bodyParser = require('body-parser');