diff --git a/apps/app.js b/apps/app.js
index 959ee01..d1f4da4 100644
--- a/apps/app.js
+++ b/apps/app.js
@@ -9,10 +9,22 @@ const router = express.Router();
 router.get('/push', HandlePush);
 
 router.get('/version', async (req, res) => {
+  const {os_type} = res.query;
+
   try {
     const connection = await createDatabaseConnection(dbConfig);
-    const [rows] = await connection.query('SELECT * FROM version');
+
+    let query = 'SELECT * FROM version';
+    const queryParams = [];
+
+    if (os_type) {
+      query += 'WHERE os_type = ?';
+      queryParams.push(os_type);
+    }
+    // const [rows] = await connection.query('SELECT * FROM version');
+    const [rows] = await connection.query(query, queryParams);
     await connection.end();
+    
     res.json(rows);
   } catch (err) {
     res.status(500).json({ error: err.message });
diff --git a/index.js b/index.js
index ed90498..070a4a9 100755
--- a/index.js
+++ b/index.js
@@ -58,7 +58,7 @@ app.use((req, res, next) => {
 });
 
 
-app.use('/JJ', routes);
+app.use('/', routes);
 
 app.listen(serverPort, () => {
   console.log(`Server running`);