{
  module: {
    rules: [
      {
        test: /\.ex$/,
        exclude: /(node_modules|bower_components)/,
        loader: "elixirscript-loader",
        options: {
          inputFolder: "./app/elixirscript",
          jsModules: [
            ["React", "react"], 
            ["ReactDOM", "react-dom"]
          ]
        }
      }
    ]
  }
}

import Elixir from "path/to/elixirscript/entry/path/app.ex";
Elixir.start(Elixir.App, []);