I want to build a react app and have the static css and js files effectively embedded into the index.html that gets produced when I call yarn build.
I can obviously hack the output and replace the <script src"... and <link href="/static/css/... tags with inline versions but was hoping for a more elegant solution.
I got it working. For future reference (using react 16.7.0 & yarn 1.10.1)...
Create a react app:
npx create-react-app my-app
cd my-app
yarn build
All good? Cool, run eject so that you have access to the webpack config:
yarn eject
rm -rf build node_modules
yarn install
yarn build
Add this project and update webpack:
yarn add html-webpack-plugin@4.0.0-beta.4
yarn add html-webpack-inline-source-plugin@1.0.0-beta.2
Edit config/webpack.config.js:
const HtmlWebpackPlugin = require('html-webpack-plugin');
const HtmlWebpackInlineSourcePlugin = require('html-webpack-inline-source-plugin'); <--- add this
...
plugins: [
new HtmlWebpackPlugin(
Object.assign(
...
isEnvProduction
? {
inlineSource: '.(js|css)$', <-- add this
minify: {
...
),
...
isEnvProduction &&
shouldInlineRuntimeChunk &&
new HtmlWebpackInlineSourcePlugin(HtmlWebpackPlugin), <--- add this
new InlineChunkHtmlPlugin(HtmlWebpackPlugin, [/runtime~.+[.]js/]),
...
Run rm -rf build && yarn build && serve -s build - the index.html you load should now contain all the js and css stuff inline. Note that the static files are still created in the build dir, but they aren't used by the page.
Previous answers don't work because html-webpack-inline-source-plugin is no longer supported by the author, replaced by official plugins html-inline-script-webpack-plugin and html-inline-css-webpack-plugin. The following method works with the latest React 17 as of October 2021. Steps:
Create a React app
create-react-app my-app
cd my-app
yarn
yarn start
Make sure it's working, you're happy with the output. Then, eject your config (I think this can be done without ejecting config, but I can't be bothered to look up how to configure CRA)
yarn eject
rm -rf build node_modules
yarn
yarn build
Then, add the Webpack plugins (Assuming you want both CSS and scripts embedded here, just remove one if you only want the other)
yarn add html-inline-css-webpack-plugin -D
yarn add html-inline-script-webpack-plugin -D
Finally, add these to the Webpack config config/webpack.config.js. Firstly declare them at the top of the file:
const HTMLInlineCSSWebpackPlugin = require('html-inline-css-webpack-plugin').default;
const HtmlInlineScriptPlugin = require('html-inline-script-webpack-plugin');
Then add them to the plugins: [...] collection. Search for new InlineChunkHtmlPlugin and add them just after that:
isEnvProduction &&
shouldInlineRuntimeChunk &&
new HTMLInlineCSSWebpackPlugin(),
isEnvProduction &&
shouldInlineRuntimeChunk &&
new HtmlInlineScriptPlugin(),
Note: It is important to include the isEnvProduction / shouldInlineRuntimeChunk checks! If you skip these the hot refresh won't work when you run yarn start. You only want to embed the scripts in production mode, not during development.
Now, if you run yarn build you'll find all the CSS and JS embedded in build/index.html. If you run yarn start it'll start a hot-reloading dev environment you can develop in.
The plugin originally linked below is no longer maintained. There have been multiple forks to update but none of them seem to be actively maintained either. The most recent option supporting Webpack 5 is the following:
https://www.npmjs.com/package/html-webpack-inline-source-plugin-next
Per its README, it works the same way as the original plugin. Specify:
var HtmlWebpackInlineSourcePlugin = require('html-webpack-inline-source-plugin-next');
Then you can pass in the plugins as before.
There is a Webpack plugin that has been created for this purpose:
https://www.npmjs.com/package/html-webpack-inline-source-plugin
As the README specifies, this must be used with html-webpack-plugin, and you have to specify the inlineSource that is passed in:
plugins: [
new HtmlWebpackPlugin({
inlineSource: '.(js|css)$' // embed all javascript and css inline
}),
new HtmlWebpackInlineSourcePlugin()
]
I couldn't get it working with all of the supplied answers. However, I want to help anyone trying to find the solution by providing some links that I found corresponding to this issue:
https://github.com/facebook/create-react-app/issues/3365#issuecomment-376546407
Generate single physical javascript file using create-react-app
Inline CSS with Webpack, without HtmlWebpackInlineSourcePlugin?
https://www.labnol.org/code/bundle-react-app-single-file-200514
For my very simple use case minification etc. is not as important so I will just use this modified version of the react website example (example download here).
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8" />
<title>Add React in One Minute</title>
</head>
<body>
<h2>Add React in One Minute</h2>
<p>This page demonstrates using React with no build tooling.</p>
<p>React is loaded as a script tag.</p>
<!-- We will put our React component inside this div. -->
<div id="root"></div>
<!-- Load React. -->
<!-- Note: when deploying, replace "development.js" with "production.min.js". -->
<script src="https://unpkg.com/react@18/umd/react.development.js" crossorigin></script>
<script src="https://unpkg.com/react-dom@18/umd/react-dom.development.js" crossorigin></script>
<script src="https://unpkg.com/babel-standalone@6.15.0/babel.min.js"></script>
<script type="text/babel">
'use strict';
class LikeButton extends React.Component {
constructor(props) {
super(props);
this.state = { liked: false };
}
render() {
if (this.state.liked) {
return 'You liked this.';
}
return <button onClick={() => this.setState({ liked: true })} > Like </button >;
}
}
const root = ReactDOM.createRoot(document.getElementById('root'));
root.render(<LikeButton />)
</script>
</body>
</html>
Hope this helps
@Jansky answer works for me, hooray! However, I want to follow up as there is a way to do these modifications without ejecting app or messing with react-scripts/config/webpack.config.js file. And that includes Overriding HtmlWebpackPlugin to inline script within body.
Others can't get this to work probably because creating webpack.config.js within own project which is not used when using create-react-app.
This works for me with webpack5, react17
npm install react-app-rewired --save-dev
react-app-rewired instead of react-scripts /* package.json */
"scripts": {
- "start": "react-scripts start",
+ "start": "react-app-rewired start",
- "build": "react-scripts build",
+ "build": "react-app-rewired build",
- "test": "react-scripts test",
+ "test": "react-app-rewired test",
"eject": "react-scripts eject"
}
config-overrides.js with this contentconst HtmlWebpackPlugin = require('html-webpack-plugin');
const HtmlInlineCssWebpackPlugin = require('html-inline-css-webpack-plugin').default;
const HtmlInlineScriptPlugin = require('html-inline-script-webpack-plugin');
module.exports = {
webpack: function (config, env) {
//inline css and scripts right after chunk plugin.
//chunk plugin will not be present for development build and thats ok.
const inlineChunkHtmlPlugin = config.plugins.find(element => element.constructor.name === "InlineChunkHtmlPlugin");
if (inlineChunkHtmlPlugin) {
config.plugins.splice(config.plugins.indexOf(inlineChunkHtmlPlugin), 0,
new HtmlInlineCssWebpackPlugin(),
new HtmlInlineScriptPlugin()
);
}
//Override HtmlWebpack plugin with preserving all options and modifying what we want
const htmlWebpackPlugin = config.plugins.find(element => element.constructor.name === "HtmlWebpackPlugin");
config.plugins.splice(config.plugins.indexOf(htmlWebpackPlugin), 1,
new HtmlWebpackPlugin(
{
...htmlWebpackPlugin.userOptions,
inject: 'body'
}
)
);
return config;
}
}
