---
layout: 4x-api
title: Express 4.x - Riferimento API
menu: api
lang: it
description: Access the API reference for Express.js 4.x, detailing all modules, methods,
  and properties for building web applications with this version.
---
<div id="api-doc" markdown="1">

  <h1>API 4.x</h1>

  <a id='express' class='h2'></a>
  {% include api/en/4x/express.md %}

  <a id='app' class='h2'></a>
  {% include api/en/4x/app.md %}

  <a id='req' class='h2'></a>
  {% include api/en/4x/req.md %}

  <a id='res' class='h2'></a>
  {% include api/en/4x/res.md %}

  <a id='router' class='h2'></a>
  {% include api/en/4x/router.md %}

</div>
