x0

Document & develop React components without breaking a sweat.

x0

View Documentation Download Source 
npm install -g @compositor/x0
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Features

  • Zero-config
  • No plugins
  • Components over configuration
  • Use markdown, MDX, or React components
  • Automatic file system based routing
  • Completely customizable
  • Export static sites
  • Works as an isolated development environment

Getting Started

x0 renders a directory of React components, automatically handling routing based on filename.
Create a docs folder and add an index.js file.

// index.js
import React from 'react'

export default class extends React.Component {
  render () {
    return (
      <h1>Hello</h1>
    )
  }
}
React JSX

Start a development server by running:

x0 docs --open
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To add more pages, add a new component for each route. For example, create an about page:

// about.js
import React from 'react'

export default props =>
  <h1>About</h1>
React JSX
The about page should now render when navigating to  <http://localhost:8080/about>.

Isolated development environment

x0 docs
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Options:

-o --open       Open dev server in default browser
-p --port       Custom port for dev server
-t --template   Path to custom HTML template
--webpack       Path to custom webpack configuration

x0 docs -op 8080
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Static Build

Export static HTML and client-side bundle

x0 build docs
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Export static HTML without bundle

x0 build docs --static
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Options

-d --out-dir    Output directory (default dist)
-s --static     Output static HTML without JS bundle
-t --template   Path to custom HTML template
--webpack       Path to custom webpack configuration

Fetching Data

Use the async getInitialProps static method to fetch data for static rendering.
This method was inspired by [Next.js][nextjs].

const Index = props => (
  <h1>Hello {props.data}</h1>
)

Index.getInitialProps = async () => {
  const fetch = require('isomorphic-fetch')
  const res = await fetch('http://example.com/data')
  const data = await res.json()

  return { data }
}
React JSX

Custom App

A custom App component can be provided by including an _app.js file.
The App component uses the render props pattern to provide additional state and props to its child routes.

// example _app.js
import React from 'react'

export default class extends React.Component {
  state = {
    count: 0
  }

  update = fn => this.setState(fn)

  render () {
    const { render, routes } = this.props

    return render({
      ...this.state,
      decrement: () => this.update(s => ({ count: s.count - 1 })),
      increment: () => this.update(s => ({ count: s.count + 1 }))
    })
  }
}
React JSX

Layouts

The App component can also be used to provide a common layout for all routes.

// example _app.js
import React from 'react'
import Nav from '../components/Nav'
import Header from '../components/Header'
import Footer from '../components/Footer'

export default class extends React.Component {
  render () {
    const {
      location,
      render,
      routes
    } = this.props

    const route = routes.find(route => route.path === location.pathname)

    return (
      <React.Fragment>
        <Nav />
        <Header
          route={route}
        />
        {render()}
        <Footer />
      </React.Fragment>
    )
  }
}
React JSX

CSS-in-JS

x0 supports server-side rendering for [styled-components][sc] and [emotion][emotion] with zero configuration.

Styled Components

To enable CSS rendering for static export, ensure that styled-components is installed as a dependency in your package.json

"dependencies": {
  "styled-components": "^3.2.6"
}
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Emotion

Ensure emotion is installed as a dependency in your package.json

"dependencies": {
  "emotion": "^9.1.3"
}
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Configuration

Default options can be set in the x0 field in package.json.

"x0": {
  "static": true,
  "outDir": "site",
  "title": "Hello",
}
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Head content

Head elements such as <title>, <meta>, and <style> can be configured with the x0 field in package.json.

"x0": {
  "title": "My Site",
  "meta": [
    { "name": "twitter:card", "content": "summary" }
    { "name": "twitter:image", "content": "kitten.png" }
  ],
  "links": [
    {
      "rel": "stylesheet",
      "href": "https://fonts.googleapis.com/css?family=Roboto"
    }
  ]
}
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Custom HTML Template

A custom HTML template can be passed as the template option.

"x0": {
  "template": "./html.js"
}
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// example template
module.exports = ({
  html,
  css,
  scripts,
  title,
  meta = [],
  links = [],
  static: isStatic
}) => `<!DOCTYPE html>
<head>
  <title>{title}</title>
  ${css}
</head>
<div id=root>${html}</div>
${scripts}
`
Js

Routing

x0 creates routes based on the file system, using [react-router][react-router].
To set the base URL for static builds, use the basename option.

"x0": {
  "basename": "/my-site"
}
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To link between different components, install react-router-dom and use the Link component.

npm i react-router-dom
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import React from 'react'
import { Link } from 'react-router-dom'

export default () => (
  <div>
    <h1>Home</h1>
    <nav>
      <Link to='/'>Home</Link>
      <Link to='/about'>About</Link>
    </nav>
  </div>
)
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JSX Format

x0 includes support for the Compositor JSX file format.

---
title: Hello
---
import { Box, Heading } from 'rebass'

<Box px={2} py={4}>
  <Heading>
    {frontMatter.title}
  </Heading>
</Box>
React JSX

MDX Format

x0 includes support for the MDX file format.

import { Box } from 'rebass'

# Hello MDX

<Box p={4} bg='tomato'>
  Beep Boop
</Box>
Mdx

webpack

Webpack configuration files named webpack.config.js will automatically be merged with the built-in configuration, using webpack-merge.
To use a custom filename, pass the file path to the --webpack flag.

// webpack.config.js example
module.exports = {
  module: {
    rules: [
      { test: /\.txt$/, loader: 'raw-loader' }
    ]
  }
}
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See the example.

GitHub

c8r/x0

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