ludo web based game config file changes

backend/config/database.js

@@ -1,13 +1,9 @@
-module.exports = function (mongoose) {
-    mongoose.set('useFindAndModify', false);
-    mongoose
-        .connect(process.env.CONNECTION_URI, {
-            useNewUrlParser: true,
-            useUnifiedTopology: true,
-            dbName: 'test',
-        })
-        .then(() => {
-            console.log('MongoDB Connected…');
-        })
-        .catch(err => console.error(err));
+module.exports = async function (mongoose) {
+    try {
+        await mongoose.connect(process.env.CONNECTION_URI);
+        console.log('✅ MongoDB connected');
+    } catch (err) {
+        console.error('❌ MongoDB connection error:', err);
+        process.exit(1);
+    }
 };

backend/server.js

@@ -6,36 +6,44 @@ const mongoose = require('mongoose');
 require('dotenv').config();
 const { sessionMiddleware } = require('./config/session');
 
-const PORT = process.env.PORT;
+const PORT = process.env.PORT || 5000;
 
 const app = express();
 
 app.use(cookieParser());
-app.use(
-    express.urlencoded({
-        extended: true,
-    })
-);
+app.use(express.urlencoded({ extended: true }));
 app.use(express.json());
 app.set('trust proxy', 1);
+
+/* ---------- CORS ---------- */
 app.use(
     cors({
-        origin: 'http://localhost:3000',
+        origin:
+            process.env.NODE_ENV === 'production'
+                ? true               // same origin (Docker / prod)
+                : 'http://localhost:3000',
         credentials: true,
     })
 );
+
 app.use(sessionMiddleware);
 
-const server = app.listen(PORT);
+const server = app.listen(PORT, "0.0.0.0", () => {
+    console.log(`Server listening on port ${PORT}`);
+});
 
+/* ---------- Mongo + Socket ---------- */
 require('./config/database')(mongoose);
 require('./config/socket')(server);
 
+/* ---------- Serve React build ---------- */
 if (process.env.NODE_ENV === 'production') {
-    app.use(express.static('./build'));
+    const buildPath = path.resolve(__dirname, 'build');
+
+    app.use(express.static(buildPath));
+
     app.get('*', (req, res) => {
-        const indexPath = path.join(__dirname, './build/index.html');
-        res.sendFile(indexPath);
+        res.sendFile(path.join(buildPath, 'index.html'));
     });
 }