webpack.config.babel.js

import path from 'path';
import webpack from 'webpack';

export default {
  devtool: 'source-map',
  entry: path.resolve(__dirname, 'src/index.js'),
  output: {
    path: path.resolve(__dirname, 'dist'),
    filename: 'index.js',
    library: 'react-library-starter',
    libraryTarget: 'umd',
    umdNamedDefine: true,
  },
  plugins: [
    new webpack.optimize.UglifyJsPlugin(),
    new webpack.DefinePlugin({
      'process.env.NODE_ENV': JSON.stringify('production'),
    }),
  ],
  module: {
    rules: [
      {
        test: /\.jsx?$/,
        include: path.join(__dirname, 'src'),
        exclude: /node_modules/,
        loader: 'babel-loader',
      },
    ],
  },
};