Node.js architecture blog post (app.js)

app.js

import express from 'express';
import container from './container';

let app = express();
// ... middlewares, config ...

// Manually setting intance
import EventEmitter from 'events';
container.set('events', new EventEmitter());

// Automatically resolving dependencies and setting an instance
container.load(require('./lib/config'));
container.load(require('./lib/db'));
container.load(require('./lib/auth'));
container.load(require('./repositories/user'));
container.load(require('./services/billing'));

// Using container to resolve dependencies but
// giving back the instance insted of setting it.
let requireUser = contrainer.get('auth').requireUserMiddleware;
let userController = container.create(require('./controllers/user'));
app.get('/users/:id', requireUser, userController.showUser);
app.get('/users/create', requireUser, userController.showCreateUser);
app.post('/users', requireUser, userController.createUser);

// ... error handling ...

app.listen(contrainer.get('config').get('port'));
container.get('events').emit('app:started');