Final project Book Review by Affaaf Mudassir

final_project/index.js

@@ -1,22 +1,39 @@
+
 const express = require('express');
 const jwt = require('jsonwebtoken');
-const session = require('express-session')
+const session = require('express-session');
 const customer_routes = require('./router/auth_users.js').authenticated;
 const genl_routes = require('./router/general.js').general;
 
 const app = express();
 
-app.use(express.json());
-
-app.use("/customer",session({secret:"fingerprint_customer",resave: true, saveUninitialized: true}))
-
-app.use("/customer/auth/*", function auth(req,res,next){
-//Write the authenication mechanism here
-});
-
-const PORT =5000;
+//  Middleware
+app.use(express.json()); // Parse JSON body
+app.use(session({
+  secret: "fingerprint_customer",
+  resave: true,
+  saveUninitialized: true
+}));
 
+//  Mount routes
 app.use("/customer", customer_routes);
 app.use("/", genl_routes);
 
-app.listen(PORT,()=>console.log("Server is running"));
+// ✅ Dynamic Port Handling
+const DEFAULT_PORT = 5000;
+let server = app.listen(DEFAULT_PORT, () => {
+  console.log(`✅ Server running at http://localhost:${DEFAULT_PORT}`);
+});
+
+server.on('error', (err) => {
+  if (err.code === 'EADDRINUSE') {
+    console.warn(`⚠️ Port ${DEFAULT_PORT} is busy. Trying a random free port...`);
+    server.close();
+    server = app.listen(0, () => {
+      const newPort = server.address().port;
+      console.log(`✅ Server restarted at http://localhost:${newPort}`);
+    });
+  } else {
+    console.error(" Server error:", err);
+  }
+});