agrupar middleware

'use strict';
const express = require('express');
const morgan = require('morgan');
const app = express();
//middlewares
const authenticationMiddleware = require('./middleware/authentication');
// resources
const usersResource = require('./resources/users');
const postsResource = require('./resources/posts');

var auth = express.Router();
auth.use(authenticationMiddleware);
auth.use('/users',usersResource);
auth.use('/posts',postsResource);


app.use(auth);

app.listen(8080);