eleventy-plugin-jsx

A plugin that allows you to use JSX as a templating language for Eleventy, using JavaScript or TypeScript. This is currently experimental, and relies on unstable Eleventy APIs.

This plugin is purposefully limited to using JSX as a templating language for static sites. If you're interested in a more Gatsby or Next-like experience with hydration of interactive components on the client, check out eleventy-plugin-react!

Installation

npm install eleventy-plugin-jsx

or

yarn add eleventy-plugin-jsx

Usage

First, add the plugin to your config. The plugin will automatically compile any files given to it with a .jsx or .tsx extension and server-side render the page. TypeScript is supported out of the box!

// .eleventy.js

const eleventyJsx = require("eleventy-plugin-jsx");

module.exports = function (eleventyConfig) {
  eleventyConfig.addPlugin(eleventyJsx);

  return {
    dir: {
      input: "src/pages",
    },
  };
};

// src/pages/index.jsx

import ParentLayout from "../layouts/ParentLayout";
import ChildComponent from "../components/ChildComponent";

// `props` is the data provided by Eleventy.
export default function IndexPage(props) {
  return (
    <ParentLayout>
      <h1>Welcome!</h1>
      <ChildComponent url={props.page.url} />
    </ParentLayout>
  );
}

All the content will be rendered into the body. React Helmet can be used to alter the head.

Data for each page is passed as props to the entrypoint page component. You can learn more about using data in Eleventy here.

You can now run Eleventy to build your site!

# Requires ELEVENTY_EXPERIMENTAL flag to run

ELEVENTY_EXPERIMENTAL=true npx @11ty/eleventy

Note: Since this plugin currently relies on experimental Eleventy APIs, running the build requires using the ELEVENTY_EXPERIMENTAL=true CLI flag.

Versioning of React packages

react, react-dom, and react-helmet are included as dependencies of this package. Under the hood, Babel will automatically rewrite the import statements to point to these dependencies to ensure that the same version of these packages are used during the server-side rendering process.