webpack.config.js

const path = require('path');

module.exports = {
  devtool: 'source-map',
  // the entry file for the bundle
  entry: path.join(__dirname, '/client/src/app.jsx'),

  // the bundle file we will get in the result
  output: {
    path: path.join(__dirname, '/client/dist/'),
    filename: 'js/app.js'
  },

  module: {
    loaders: [
      {
        test: /\.jsx?$/,
        include: path.join(__dirname, '/client/src'),
        loader: 'babel-loader',
        query: {
          presets: ["react", "es2015"]
        }
      }, {
        test: /\.s?css$/,
        loaders: [
          'style-loader', 'css-loader', 'sass-loader'
        ],
        include: path.join(__dirname, 'client/src')
      }, {
        test: /\.(jpg|png|svg)$/,
        loader: 'file-loader',
        options: {
          name: 'image/[hash].[ext]'
        }
      }

    ]
  }

  // start Webpack in a watch mode, so Webpack will rebuild the bundle on changes
  // watch: true
};