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https://github.com/mojolicious/mojo.js

:unicorn: The Mojolicious real-time web framework for Node.js
https://github.com/mojolicious/mojo.js

backend javascript mojojs mvc nodejs typescript web-framework websockets

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:unicorn: The Mojolicious real-time web framework for Node.js

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[![npm](https://img.shields.io/npm/v/@mojojs/core.svg)](https://www.npmjs.com/package/@mojojs/core)



The [Mojolicious](https://mojolicious.org) real-time web framework for [Node.js](https://nodejs.org/). Written in

TypeScript. Meticulously designed for hypermedia-driven backend web services using all the latest JavaScript features.



If you want to stay up to date on the

[latest developments](https://github.com/mojolicious/mojo.js/blob/main/CHANGELOG.md) join us on

[IRC](https://web.libera.chat/#mojo).



## Features



* 3x faster than Express.js and 15x faster than Mojolicious.

* A **real-time web framework**, allowing you to easily grow single file prototypes into well-structured MVC web

  applications.

  * Powerful out of the box with RESTful routes, WebSockets, plugins, commands, logging, templates, content negotiation,

    session management, form and JSON validation, testing framework, static file server, cluster mode, CGI detection,

    first class Unicode support and much more for you to discover.

* A powerful **web development toolkit**, that you can use for all kinds of applications, independently of the web

  framework.

  * High performance HTTP and WebSocket client/server implementation with support for HTTPS/WSS, cookies, redirects,

    urlencoded/multi-part forms, file uploads, JSON/YAML, HTML/XML, mocking, API testing, HTTP/SOCKS proxies, UNIX

    domain sockets and gzip compression.

  * HTML/XML parser with CSS selector support.

* No frontend framework, mojo.js is for the **backend**.

* Written in [TypeScript](https://www.typescriptlang.org), with very clean `class` and `async`/`await` based APIs.

* Very few dependencies, to avoid supply chain attacks and allow for "Perl-grade" long term support and

  **backwards compatibility**.

* Fresh code based upon decades of experience developing [Mojolicious](https://mojolicious.org) and

  [Catalyst](http://catalyst.perl.org), free and open source.



## Installation



All you need is Node.js 18.0.0 (or newer).



```

$ npm install @mojojs/core

```



Maybe take a look at our high quality spin-off projects [@mojojs/dom](https://www.npmjs.com/package/@mojojs/dom),

[@mojojs/path](https://www.npmjs.com/package/@mojojs/path), [@mojojs/pg](https://www.npmjs.com/package/@mojojs/pg) and

[@mojojs/template](https://www.npmjs.com/package/@mojojs/template).



## Getting Started



  These four lines are a whole web application.



```js

import mojo from '@mojojs/core';



const app = mojo();



app.get('/', ctx => ctx.render({text: 'I ♥ Mojo!'}));



app.start();

```



  Use the built-in command system to start your web server.



```

$ node index.mjs server

[77264] Web application available at http://127.0.0.1:3000/

```



  Test it with any HTTP client you prefer.



```

$ curl http://127.0.0.1:3000/

I ♥ Mojo!

```



## Duct Tape for the Web



  Use all the latest Node.js and HTML features in convenient single file prototypes like this one, and grow them easily

  into well-structured **Model-View-Controller** web applications.



```js

import mojo from '@mojojs/core';



const app = mojo();



app.get('/', async ctx => {

  await ctx.render({inline: inlineTemplate});

});



app.websocket('/title', ctx => {

  ctx.plain(async ws => {

    for await (const url of ws) {

      const res   = await ctx.ua.get(url);

      const html  = await res.html();

      const title = html.at('title').text();

      await ws.send(title);

    }

  });

});



app.start();



const inlineTemplate = `



  const ws = new WebSocket('<%= ctx.urlFor('title') %>');

  ws.onmessage = event => { document.body.innerHTML += event.data };

  ws.onopen    = event => { ws.send('https://mojolicious.org') };



`;

```



## Want to know more?



Take a look at our excellent [documentation](https://mojojs.org/docs/)!