ulogger-server/webpack.prod.js

const merge = require('webpack-merge');
const common = require('./webpack.common.js');

module.exports = merge(common, {
  mode: 'production',
  devtool: 'source-map',
  module: {
    rules: [
      {
        test: /\.js$/,
        use: {
          loader: 'babel-loader',
          options: {
            presets: [ '@babel/preset-env' ]
          }
        }
      }
    ]
  }
});