Node.js microservice as single file w/o dependencies with babel 7 and rollup

.babelrc.js

//@flow

module.exports = {
  "presets": [
    "@babel/preset-flow",
    ["@babel/preset-env", {
      "targets": {
        "node": "8.9"
      },
      // "shippedProposals": true,
      "loose": true,
      "modules": false,
      "useBuiltIns": "usage",
      "ignoreBrowserslistConfig": true
    }]
  ],
  "plugins": [
    ["@babel/plugin-proposal-object-rest-spread", { "useBuiltIns": true }],
    "transform-commonjs-es2015-modules"
  ]
}

index.js

import Koa from 'koa'

export const app = new Koa()

app.listen(7000)

package.json

{
  "name": "@@node-microservice",
  "version": "1.0.0",
  "description": "Node.js service as single unit",
  "main": "server.js",
  "scripts": {
    "build": "rollup -c rollup.config.js",
    "start": "node server.js"
  },
  "dependencies": {
    "koa": "^2.4.1",
    "koa-basic-auth": "^2.0.0",
    "koa-body": "^2.5.0",
    "koa-helmet": "^3.3.0",
    "koa-mount": "^3.0.0",
    "koa-router": "^7.3.0",
    "koa-static": "^4.0.2"
  },
  "devDependencies": {
    "@babel/cli": "^7.0.0-beta.34",
    "@babel/core": "^7.0.0-beta.34",
    "@babel/node": "^7.0.0-beta.34",
    "@babel/plugin-proposal-object-rest-spread": "^7.0.0-beta.34",
    "@babel/polyfill": "^7.0.0-beta.34",
    "@babel/preset-env": "^7.0.0-beta.34",
    "@babel/preset-flow": "^7.0.0-beta.34",
    "babel-plugin-transform-commonjs-es2015-modules": "^4.0.1",
    "rollup": "^0.52.1",
    "rollup-plugin-babel": "^4.0.0-beta.0",
    "rollup-plugin-commonjs": "^8.2.6",
    "rollup-plugin-json": "^2.3.0",
    "rollup-plugin-node-resolve": "^3.0.0",
    "rollup-plugin-replace": "^2.0.0",
    "rollup-plugin-uglify": "^2.0.1",
    "uglify-es": "^3.2.2"
  },
  "license": "MIT",
  "author": {
    "name": "Zero Bias",
    "email": "[email protected]",
    "url": "https://github.com/zerobias"
  }
}

rollup.config.js

import json from 'rollup-plugin-json'
import resolve from 'rollup-plugin-node-resolve'
import commonjs from 'rollup-plugin-commonjs'
import babel from 'rollup-plugin-babel'
import replace from 'rollup-plugin-replace'
import uglify from 'rollup-plugin-uglify'
import { minify } from 'uglify-es'

export default {
  input:  'index.js',
  output: {
    file:   'server.js',
    format: 'cjs'
  },
  name:       'server',
  extensions: ['.js', '.json'],
  plugins:    [
    
    json({
      preferConst: true,
      include: '../../node_modules/**/**/**/**/**/*',
    }),
    replace({
      include: [
        '../../node_modules/formidable/**/**/**/**/**/*',
        '../../node_modules/helmet-csp/**/**/**/**/**/*'
      ],
      values: {
        'if (global.GENTLY) require = GENTLY.hijack(require);': '',
        "var config = require('../../config')": "var config = require('../../config.json')"
      }
    }),
    babel({ include: ['**/node_modules/**/**/**/**/**/*', './index.js'], exclude: ['**/node_modules/formidable/**'] }),
    resolve({
      main:                 true,
      jsnext:               true,
      browser:              false,
      preferBuiltins:       true,
      customResolveOptions: {
        moduleDirectory: '../../node_modules'
      },
      extensions: ['.js', '.json'],
    }),
    commonjs({
     ignore:       ['morgan'],
     ignoreGlobal: false,
    }),
    uglify({
      ecma: 8,
      mangle: false,
      output: {
        indent_level: 2,
        quote_style: 1,
        semicolons: false,
        beautify: true,
        ecma: 8,
      },
    }, minify)
  ],
}