@spa-kit/react

Reusable React components and hooks. Components are styled with StyleX.

Install

npm install @spa-kit/react react react-dom @stylexjs/stylex

react, react-dom, and @stylexjs/stylex are peer dependencies.

Usage

import { renderComponent } from "@spa-kit/react";

// Mount a tree into <div id="root"></div>
renderComponent(<h1>Hello</h1>);

Required: compile this package's StyleX

This package ships un-compiled StyleX. Its stylex.create/stylex.props calls throw at runtime until your build compiles them into your app's single atomic CSS bundle. So your StyleX toolchain must be told to include this package's files (in node_modules) alongside your own source.

The exact config depends on your setup:

PostCSS plugin (Next.js, etc.) — add the package glob to include:

// postcss.config.js
module.exports = {
  plugins: {
    "@stylexjs/postcss-plugin": {
      include: [
        "src/**/*.{js,jsx,ts,tsx}",
        "node_modules/@spa-kit/react/dist/**/*.{js,cjs}",
      ],
    },
    autoprefixer: {},
  },
};

Rollup / Vite plugin — point include at the package:

import stylexPlugin from "@stylexjs/rollup-plugin";

stylexPlugin({
  include: ["src/**/*.{js,jsx,ts,tsx}", "node_modules/@spa-kit/react/**"],
});

Babel plugin — make sure Babel transforms node_modules/@spa-kit/react (by default Babel ignores node_modules, so add an override / exclude carve-out for this package) and that @stylexjs/babel-plugin runs on it.

If you skip this step you'll get an error like "Unexpected 'stylex.create' call at runtime" — that means the package's StyleX wasn't compiled.