webpack.config.js

var path = require("path");

// copy everything that has been prepared into dist folder
var DIST_DIR = path.resolve(__dirname, "dist");

// copy from src folder
var SRC_DIR = path.resolve(__dirname, "src");


var config = {
  entry: SRC_DIR + "/app/index.js",
  output: {
    path: DIST_DIR + "/app",
    filename: "bundle.js",
    publicPath: "/app/"
  },
  module:{
    loaders: [
      {
        test: /\.js?/,
        include: SRC_DIR,
        loader: "babel-loader",
        query: {
          presets: ["react", "es2015", "stage-2"]
        }
      },
      {
        test: /\.scss$/,
        use: [{
            loader: "style-loader"
        }, {
            loader: "css-loader"
        }, {
            loader: "sass-loader",
            options: {
                includePaths: ["absolute/path/a", "absolute/path/b"]
            }
        }]
      }
    ]
  }

};

module.exports = config;