webpack.config.js

const path = require('path');

module.exports = {
  entry: ['react-hot-loader/patch', './src/index.js'],
  output: {
    path: path.resolve(__dirname, 'dist'),
    filename: 'bundle.js',
    publicPath: '/',
  },
  module: {
    rules: [
      {
        test: /\.(js|jsx)$/,
        use: 'babel-loader',
        exclude: /node_modules/,
      },
      {
        test: /\.css$/,
        use: ['style-loader', 'css-loader'],
      },
      {
        test: /\.scss$/,
        use: ['style-loader', 'css-loader', 'sass-loader'],
      },
      {
        test: /\.(eot|woff|woff2|ttf|svg|png|jpg)$/,
        include: [path.resolve(__dirname + '/src')],
        loader: 'url-loader?limit=50000&name=[name].[ext]',
      },
    ],
  },
  resolve: {
    extensions: ['.js', '.jsx'],
    alias: {
      'react-dom': '@hot-loader/react-dom',
    },
  },
  devServer: {
    host: 'localhost',
    port: 8080,
    contentBase: path.resolve(__dirname, 'dist'),
    historyApiFallback: true,
    headers: { 'Access-Control-Allow-Origin': '*' },
    proxy: {
      '/': {
        target: 'http://localhost:3001/',
        secure: false,
      },
    },
  },
};