initial commit

apps/Backend/src/index.ts

@@ -0,0 +1,53 @@
+import app from "./app";
+import dotenv from "dotenv";
+import http from "http";
+import { initSocket } from "./socket";
+
+dotenv.config();
+
+const NODE_ENV = (
+  process.env.NODE_ENV ||
+  process.env.ENV ||
+  "development"
+).toLowerCase();
+const HOST = process.env.HOST || "0.0.0.0";
+const PORT = Number(process.env.PORT) || 5000;
+
+// HTTP server from express app
+const server = http.createServer(app);
+
+// Initialize socket.io on this server
+initSocket(server);
+
+server.listen(PORT, HOST, () => {
+  console.log(
+    `✅ Server running in ${NODE_ENV} mode at http://${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"));