diff --git a/backend-app/app.ts b/backend-app/app.ts
index e0c14a1..bc7821c 100644
--- a/backend-app/app.ts
+++ b/backend-app/app.ts
@@ -17,8 +17,8 @@ import cookieParser from 'cookie-parser';
 // import routesVersioning from 'express-routes-versioning';
 // import indexRouter from './routes/index';
 import { RegisterRoutes } from './routes';
-import TaskEmitter from '@root/utils/TaskEmitter';
-import { expressAuthentication } from './middlewares/authentications';
+import notification_controller from './controllers/notification_controller';
+
 const app = express();
 
 // use json as default format
@@ -71,29 +71,7 @@ app.use(handleAPIVersion);
 // handle bearer token
 app.use(bearerToken());
 
-app.get(
-    '/streams',
-    async (req, res, next) => {
-        await expressAuthentication(req, 'jwt');
-        next();
-    },
-    (req, res) => {
-        TaskEmitter.registerClient(req, res);
-        console.log('Client connnected...');
-        res.writeHead(200, {
-            'Content-Type': 'text/event-stream',
-            'Cache-Control': 'no-cache',
-            'Content-Encoding': 'none',
-            Connection: 'keep-alive',
-        });
-        TaskEmitter.listenIncomingNotification();
-        res.on('close', () => {
-            console.log('Client disconnected.');
-            TaskEmitter.removeConnectedClient(String(req.user._id));
-            res.end();
-        });
-    }
-);
+app.get('/streams', notification_controller);
 
 app.get('/', (_req: Request, res: Response) => {
     res.status(200).json({
diff --git a/backend-app/controllers/notification_controller.ts b/backend-app/controllers/notification_controller.ts
new file mode 100644
index 0000000..2e5f6ce
--- /dev/null
+++ b/backend-app/controllers/notification_controller.ts
@@ -0,0 +1,29 @@
+import { IReq } from '@root/interfaces/vendors';
+import { expressAuthentication } from '@root/middlewares/authentications';
+import TaskEmitter from '@root/utils/TaskEmitter';
+import { NextFunction, Response } from 'express';
+
+export default [
+    async (req: IReq, res: Response, next: NextFunction) => {
+        try {
+            await expressAuthentication(req, 'jwt');
+            next();
+        } catch (err) {
+            res.json(err.message);
+        }
+    },
+    (req: IReq, res: Response) => {
+        TaskEmitter.registerClient(req, res);
+        res.writeHead(200, {
+            'Content-Type': 'text/event-stream',
+            'Cache-Control': 'no-cache',
+            'Content-Encoding': 'none',
+            Connection: 'keep-alive',
+        });
+        TaskEmitter.listenIncomingNotification();
+        res.on('close', () => {
+            TaskEmitter.removeConnectedClient(String(req.user._id));
+            res.end();
+        });
+    },
+];