feat: add simple root route

server/index.js

@@ -0,0 +1,14 @@
+const express = require('express');
+const app = express();
+const { PORT = 4000 } = process.env;
+const router = require('./routes/index');
+const morgan = require('morgan');
+
+app.use(morgan('tiny'));
+app.use(express.urlencoded({ extended: true }));
+app.use(express.json());
+app.use(router);
+
+app.listen(PORT, () => {
+  console.log(`server is running on http://localhost:${PORT}`);
+});

server/routes/index.js

@@ -0,0 +1,10 @@
+const express = require('express');
+const router = express.Router();
+
+router.get('/', function (req, res) {
+  res.status(200).json({
+    message: 'root is rendered',
+  });
+});
+
+module.exports = router;