webpack.config.js

const path = require('path');
const webpack = require('webpack');

module.exports = {
  entry: './src/index.js',
  target: 'node',
  output: {
    path: path.resolve(__dirname, 'dist'),
    filename: 'react-charts-d3.js',
    libraryTarget: 'umd',
  },
  module: {
    rules: [
      {
        test: /\.css$/,
        use: [{ loader: 'style-loader' }, { loader: 'css-loader' }],
      },
      {
        test: /\.js$/,
        exclude: /node_modules/,
        use: 'babel-loader',
      },
      {
        test: /\.jsx?$/,
        exclude: /node_modules/,
        use: 'babel-loader',
      },
    ],
  },
  plugins: [
    new webpack.DefinePlugin({
      global: {}, // bizarre lodash(?) webpack workaround
      'global.GENTLY': true, // superagent client fix
    })
  ],
};