Best way to create npm packages with create-react-app

Init project

create-react-app create-react-app-npm
cd create-react-app-npm
yarn run eject
yarn add -D babel-preset-es2015 babel-preset-stage-0 babel-preset-react babel-cli

Create `.babelrc`

{
 “presets”: [“es2015”, “react”, “stage-0”]
}

Change `package.json`

…
  "name": "create-react-app-npm",
  "version": "0.0.1",
  "main": "lib/index.js",
  "dependencies": {
…
  "scripts": {
    "start": "node scripts/start.js",
    "build": "node scripts/build.js",
    "lib": "babel src/node_modules --out-dir lib --copy-files",
    "test": "node scripts/test.js --env=jsdom"
  },
…

For normal css loader

Change `config/webpack.config.dev.js`

…
 {
 test: /\.css$/,
 loader: `style!css?importLoaders=1&modules&localIdentName=[name]__[local]___[hash:base64:5]!postcss`
 },
…

Change `config/webpack.config.prod.js`

…
 {
 test: /\.css$/,
 loader: ExtractTextPlugin.extract(
 ‘style’,
 ‘css?importLoaders=1&modules&localIdentName=[name]__[local]___[hash:base64:5]!postcss’,
 extractTextPluginOptions
 )
 },
…

Create next folder structure

src/node_modules/
src/node_modules/components/
src/node_modules/components/YourComponent/
src/node_modules/components/YourComponent1/
src/node_modules/components/YourComponent2/
…
src/node_modules/components/YourComponentN/

In each `YourComponentN`

Create `package.json`

{
 “private”: true,
 “name”: “YourComponent”,
 “main”: “./YourComponent.js”
}

Create `YourComponent.css` (for example)

.root {
 background: linear-gradient(to top,#fed835 20px,#ffeb3c 20px);
 font-size: 30px;
 color: white;
 line-height: 35px;
 text-align: center;
}

Create `YourComponent.js`

import React                from 'react'
import s                    from './YourComponent.css'
class YourComponent extends React.Component {
  render() {
    return (
      <div className={ s.root }>
        { this.props.children }
      </div>
    )
  }
}
export default YourComponent

Create src/node_modules/index.js

export { default as YourComponent } from './components/YourComponent'

For demo application change `src/App.js`

import React                from 'react'
import YourComponent        from 'components/YourComponent'
class App extends React.Component {
  render() {
    return (
      <YourComponent>
        1
      </YourComponent>
    )
  }
}
export default App

At now u can run `yarn run start` to see what you done

Add necessary paths to `.gitignore (for example)

/node_modules
/coverage
/build
.DS_Store
.env
npm-debug.log*
yarn-debug.log*
yarn-error.log*
yarn.lock
.idea

Compile library

yarn run lib

Create repository on github

Link your project with github

git init
git remote add origin https://github.com/lokhmakov/create-react-app-npm.git

Add and commit

git add .
git commit -m "init"
git push -u origin master
npm publish

You have done. Now you can use it

yarn add create-react-app-npm

And

import { YourComponent } from 'create-react-app-npm'

lokhmakov/create-react-app-npm