Start from scratch, init by express-generator

.babelrc

-{
-  "presets": ["@babel/preset-env"],
-  "ignore": ["**/__tests__/**", "*.test.js", "*.spec.js"]
-}

.eslintignore

-# bin folder
-bin
-# build folder 
-build
-dist
-
-# exclude src
-!src/**
\ No newline at end of file

.eslintrc.js

-module.exports = {
-  env: {
-    es6: true,
-    node: true
-  },
-  extends: [
-    'eslint:recommended',
-    'plugin:import/errors',
-    'plugin:import/warnings'
-  ],
-  parserOptions: {
-    ecmaVersion: 2018,
-    sourceType: 'module'
-  },
-  rules: {
-    'linebreak-style': ['error', 'unix'],
-    quotes: ['error', 'single'],
-    semi: ['error', 'always'],
-    'import/no-commonjs': 'error'
-  }
-};

src/app.js → app.js

-import express from 'express';
-import path from 'path';
-import cookieParser from 'cookie-parser';
-import logger from 'morgan';
+var express = require('express');
+var path = require('path');
+var cookieParser = require('cookie-parser');
+var logger = require('morgan');
 
-import indexRouter from './routes/index';
+var indexRouter = require('./routes/index');
+var usersRouter = require('./routes/users');
 
-const app = express();
+var app = express();
 
 app.use(logger('dev'));
 app.use(express.json());
 app.use(express.urlencoded({ extended: false }));
 app.use(cookieParser());
-app.use(express.static(path.join(__dirname, '../public')));
+app.use(express.static(path.join(__dirname, 'public')));
 
 app.use('/', indexRouter);
+app.use('/users', usersRouter);
 
-export default app;
+module.exports = app;

src/bin/www.js → bin/www

@@ -4,24 +4,22 @@
  * Module dependencies.
  */
 
-import app from '../app';
-import debugLib from 'debug';
-import http from 'http';
-
-const debug = debugLib('express-es6-sample:server');
+var app = require('../app');
+var debug = require('debug')('myapp:server');
+var http = require('http');
 
 /**
  * Get port from environment and store in Express.
  */
 
-const port = normalizePort(process.env.PORT || '3000');
+var port = normalizePort(process.env.PORT || '3000');
 app.set('port', port);
 
 /**
  * Create HTTP server.
  */
 
-const server = http.createServer(app);
+var server = http.createServer(app);
 
 /**
  * Listen on provided port, on all network interfaces.
@@ -60,12 +58,13 @@ function onError(error) {
     throw error;
   }
 
-  var bind = typeof port === 'string' ? 'Pipe ' + port : 'Port ' + port;
+  var bind = typeof port === 'string'
+    ? 'Pipe ' + port
+    : 'Port ' + port;
 
   // handle specific listen errors with friendly messages
   switch (error.code) {
     case 'EACCES':
-      /* eslint-disable no-console */
       console.error(bind + ' requires elevated privileges');
       process.exit(1);
       break;
@@ -84,7 +83,8 @@ function onError(error) {
 
 function onListening() {
   var addr = server.address();
-  var bind = typeof addr === 'string' ? 'pipe ' + addr : 'port ' + addr.port;
-  console.log(`Listening on ${bind}`);
+  var bind = typeof addr === 'string'
+    ? 'pipe ' + addr
+    : 'port ' + addr.port;
   debug('Listening on ' + bind);
 }

nodemon.json

-{
-  "execMap": {
-    "js": "babel-node"
-  },
-  "watch": ["src/*", "public/*"],
-  "ext": "js, html, css, json"
-}

package.json

 {
   "name": "express-es6-sample",
-  "version": "0.0.0",
+  "version": "0.2.0",
   "private": true,
+  "author": {
+    "name": "Jonathan Cunanan",
+    "url": "https://github.com/jcunanan05"
+  },
+  "license": "MIT",
   "scripts": {
-    "start": "npm run prod",
-    "dev": "NODE_ENV=development npm run watch ./src/bin/www",
-    "prod": "npm run build && NODE_ENV=production node ./dist/bin/www",
-    "build": "npm run clean && babel ./src --config-file ./.babelrc --out-dir dist",
-    "clean": "rimraf dist",
-    "watch": "nodemon --config ./nodemon.json --"
+    "start": "node ./bin/www"
   },
   "dependencies": {
-    "bigint-hash": "^0.2.2",
-    "cookie-parser": "^1.4.4",
+    "cookie-parser": "~1.4.4",
     "debug": "~2.6.9",
-    "express": "~4.16.0",
-    "morgan": "~1.9.0",
-    "rimraf": "^2.6.3"
-  },
-  "devDependencies": {
-    "@babel/cli": "^7.4.4",
-    "@babel/core": "^7.4.4",
-    "@babel/node": "^7.2.2",
-    "@babel/preset-env": "^7.4.4",
-    "eslint": "^5.16.0",
-    "eslint-plugin-import": "^2.17.2",
-    "nodemon": "^1.19.0"
+    "express": "~4.16.1",
+    "morgan": "~1.9.1"
   }
 }

src/routes/index.js → routes/index.js

-import express from 'express';
+var express = require('express');
 var router = express.Router();
 
 /* GET home page. */
@@ -6,4 +6,4 @@ router.get('/', function(req, res, next) {
   res.render('index', { title: 'Express' });
 });
 
-export default router;
+module.exports = router;

routes/users.js

+var express = require('express');
+var router = express.Router();
+
+/* GET users listing. */
+router.get('/', function(req, res, next) {
+  res.send('respond with a resource');
+});
+
+module.exports = router;

src/views/index.ejs

-<!DOCTYPE html>
-<html lang="en">
-  <head>
-    <meta charset="UTF-8" />
-    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
-    <title>Hello</title>
-  </head>
-  <body>
-    <h1>Hello <%= title %></h1>
-  </body>
-</html>