Add deploy_sample

deploy_sample/app/index.js

@@ -0,0 +1,44 @@
+// Importing express module
+const express = require("express");
+
+const port = 8080;
+const app = express();
+const { networkInterfaces } = require('os');
+const nets = networkInterfaces();
+const results = Object.create(null); // Or just '{}', an empty object
+
+app.use(express.json());
+app.use(express.urlencoded({ extended: true }));
+app.use(express.static('public'));
+
+for (const name of Object.keys(nets)) {
+    for (const net of nets[name]) {
+        // Skip over non-IPv4 and internal (i.e. 127.0.0.1) addresses
+        // 'IPv4' is in Node <= 17, from 18 it's a number 4 or 6
+        const familyV4Value = typeof net.family === 'string' ? 'IPv4' : 4
+        if (net.family === familyV4Value && !net.internal) {
+            if (!results[name]) {
+                results[name] = [];
+            }
+            results[name].push(net.address);
+        }
+    }
+}
+
+// Handling the get request
+app.get("/", (req, res) => {
+    res.send("Hello World");
+});
+
+app.get("/ip", (req, res) => {
+    res.send(results);
+});
+
+// Starting the server on the 80 port
+app.listen(port, () => {
+    console.log(`The application started
+                 successfully on port ${port}`);
+    console.log(`IP address ${JSON.stringify(results)}`);
+});
+
+module.exports = app