backup page done

apps/Backend/src/index.ts

@@ -1,11 +1,38 @@
-import app from './app';
-import dotenv from 'dotenv';
+import app from "./app";
+import dotenv from "dotenv";
 
 dotenv.config();
 
 const HOST = process.env.HOST;
 const PORT = process.env.PORT;
 
-app.listen(PORT, () => {
-  console.log(`Server running at http://${HOST}:${PORT}`);
-});
+const server = app.listen(PORT, () => {
+  console.log(`✅ Server running at http://${HOST}:${PORT}`);
+});
+
+// Handle startup errors
+server.on("error", (err: NodeJS.ErrnoException) => {
+  if (err.code === "EADDRINUSE") {
+    console.error(`❌ Port ${PORT} is already in use`);
+  } else {
+    console.error("❌ Server failed to start:", err);
+  }
+  process.exit(1); // Exit with failure
+});
+
+// Graceful shutdown
+const shutdown = (signal: string) => {
+  console.log(`⚡ Received ${signal}, shutting down gracefully...`);
+
+  server.close(() => {
+    console.log("✅ HTTP server closed");
+
+    // TODO: Close DB connections if needed
+    // db.$disconnect().then(() => console.log("✅ Database disconnected"));
+
+    process.exit(0);
+  });
+};
+
+process.on("SIGINT", () => shutdown("SIGINT"));
+process.on("SIGTERM", () => shutdown("SIGTERM"));