webpack.config.js

var webpack = require("webpack");
var path = require('path');

module.exports = {
  devtool: 'eval',
  resolve: {
    fallback: path.join(__dirname, "node_modules"),
    alias: {
      "react": __dirname + '/node_modules/react',
      "react-dom": __dirname + '/node_modules/react-dom'
    }
  },
  entry: {
    example: [
      'webpack-dev-server/client?http://localhost:3002',
      'webpack/hot/only-dev-server',
      "./example/index.js"
    ]
  },
  output: {
    path: './lib',
    filename: "bundle.js",
    publicPath: "http://localhost:3002/lib/"
  },
  plugins: [
    new webpack.HotModuleReplacementPlugin(),
    new webpack.NoErrorsPlugin()
  ],
  module: {
    loaders: [
      {
        test: /\.css$/, loader: "style-loader!css-loader"
      },
      {
        test: /\.scss$/,
        loader: "style!css!postcss!sass"
      },
      {
        test: /\.js$/,
        exclude: [ /node_modules/],
        loaders: ["react-hot", "babel-loader"]
      },
      {
        test: /node_modules\/lodash-es\//,
        loaders: ["react-hot", "babel-loader"]
      }

    ]
  },
  devServer: {
    port: 3002,
    inline: true,
    hot: true,
    publicPath: "/",
    contentBase: "./",
    headers: { "Access-Control-Allow-Origin": "*" },
    devtool: 'eval'
  }
};