New project structure

New folder structure
Changed to type:module
Moved routes to separate files

routes/routeCity.js

@@ -0,0 +1,14 @@
+import express from "express";
+import Restaurant from "../models/restaurant.js";
+
+var router = express.Router();
+
+router.get("/", (req, res) => {
+  Restaurant.find({ city: req.body.city }, (err, data) => {
+    if (err) {
+      res.sendStatus(404);
+    } else res.send(data);
+  });
+});
+
+export default router;