diff --git a/covas_mobile/lib/main.dart b/covas_mobile/lib/main.dart
index 7bb6088..b6345a4 100644
--- a/covas_mobile/lib/main.dart
+++ b/covas_mobile/lib/main.dart
@@ -122,7 +122,22 @@ class _LoginDemoState extends State<LoginDemo> with ShowErrorDialog {
 
   void start() async {
     SharedPreferences prefs = await SharedPreferences.getInstance();
-    stderr.writeln(prefs.getString("jwt"));
+    var jwt = prefs.getString("jwt") ?? "";
+    var user = prefs.getString("user") ?? "";
+    stderr.writeln(jwt);
+    if ((jwt.isNotEmpty) && (user.isNotEmpty)) {
+      var urlToken = Uri.parse("http://localhost:8083/api/token");
+
+      var responseToken = await http.get(urlToken,
+          headers: {HttpHeaders.cookieHeader: '${jwt}; ${user}'});
+      stderr.writeln(responseToken.statusCode);
+      if (responseToken.statusCode == 200) {
+        MaterialPageRoute(builder: (_) => MyHomePage(title: 'Flutter Demo'));
+      } else {
+        prefs.remove("jwt");
+        prefs.remove("user");
+      }
+    }
   }
 
   @override