webpack.config.babel.js

const path = require('path');
const webpack = require('webpack');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const ExtractTextPlugin = require('extract-text-webpack-plugin');

const config = {
  entry: [
    'react-hot-loader/patch',
    'webpack-hot-middleware/client?reload=true&timeout=2000&noInfo=true',
    './client/index.js'
  ],
  output: {
    path: path.resolve(__dirname, 'build'),
    filename: 'bundle.js',
    publicPath: '/'
  },
  module: {
    rules: [{
      loader: 'babel-loader',
      exclude: /(node_modules)/,
      test: /\.js|jsx$/
    }, {
      use: ['css-hot-loader'].concat(ExtractTextPlugin.extract({
        fallback: 'style-loader',
        use: ['css-loader', 'sass-loader']
      })),
      test: /\.scss$/
    }]
  },
  plugins: [
    new webpack.HotModuleReplacementPlugin(),
    new webpack.NoEmitOnErrorsPlugin(),
    new ExtractTextPlugin({
      filename: 'style.css'
    }),
    new HtmlWebpackPlugin({
      template: './index.html'
    })
  ]
};

module.exports = config;