webpack.config.js

const TerserPlugin = require('terser-webpack-plugin');

const path = require('path');

const config = {
  mode: 'production',
  entry: {
    index: ['./src/index.ts'],
  },
  output: {
    path: path.resolve(__dirname, 'dist'),
    filename: '[name].js',
    libraryTarget: 'umd',
    library: 'react-awesome-button',
    globalObject: 'this',
  },
  externals: {
    react: {
      root: 'React',
      commonjs2: 'react',
      commonjs: 'react',
      amd: 'react',
    },
    'prop-types': {
      root: 'PropTypes',
      commonjs: 'prop-types',
      commonjs2: 'prop-types',
      amd: 'prop-types',
    },
  },
  module: {
    rules: [
      {
        test: /\.tsx?$/,
        use: 'ts-loader',
        exclude: /node_modules/,
      },
      {
        test: /\.js$/,
        exclude: /node_modules/,
        loader: 'babel-loader',
        options: {
          presets: ['es2015', 'react', 'stage-0'],
        },
      },
    ],
  },
  resolve: {
    extensions: ['.tsx', '.ts', '.js'],
  },
  optimization: {
    minimize: true,
    minimizer: [
      new TerserPlugin({
        terserOptions: {
          keep_fnames: true,
        },
      }),
    ],
  },
};

module.exports = config;