New project structure

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

loaders/express.js

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+import bodyParser from "body-parser";
+import cors from "cors";
+import rateLimiter from "express-rate-limit";
+import helmet from "helmet";
+import routeDish from "../routes/routeDish.js";
+import routeCity from "../routes/routeCity.js";
+import routeRestaurant from "../routes/routeRestaurant.js";
+import routeImg from "../routes/routeImg.js";
+
+export default ({ app }) => {
+  const limiter = rateLimiter({
+    windowMs: 15 * 60 * 1000, //time window
+    max: 100, //requests from a single IP for a time window
+  });
+
+  app.use(bodyParser.json({ limit: "100kb" })); // limit JSON body payload size
+  app.use(bodyParser.urlencoded({ extended: true }));
+  app.use(helmet());
+  app.use(limiter);
+  app.use(cors());
+  app.use("/dish", routeDish);
+  app.use("/city", routeCity);
+  app.use("/restaurant", routeRestaurant);
+  app.use("/img", routeImg);
+
+  return app;
+};

loaders/index.js

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+import expressLoader from "./express.js";
+import mongooseLoader from "./mongoose.js";
+
+export default async ({ expressApp, dbPass }) => {
+  const mongoConnection = await mongooseLoader({ pass: dbPass });
+  console.log("Mongoose Loaded");
+  await expressLoader({ app: expressApp });
+  console.log("Express Initialized");
+};

loaders/mongoose.js

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+import mongoose from "mongoose";
+
+export default async ({ pass }) => {
+  const connection = await mongoose.connect(
+    "mongodb+srv://menui_db_user:" +
+      pass +
+      "@menui-database.9quwf.mongodb.net/<dbname>?retryWrites=true&w=majority",
+    { useNewUrlParser: true, useUnifiedTopology: true },
+    (err) => {
+      if (err) console.log("Unable to connect :(");
+      else console.log("Connected To Database");
+    }
+  );
+};