git add .

git commit "add user authentication"

app/Http/Controllers/Auth/LogoutController.php

@@ -4,8 +4,18 @@ namespace App\Http\Controllers\Auth;
 
 use App\Http\Controllers\Controller;
 use Illuminate\Http\Request;
+use Illuminate\Support\Facades\Auth;
 
 class LogoutController extends Controller
 {
-    //
+    public function index()
+    {
+        Auth::logout();
+
+        Request()->session()->invalidate();
+        Request()->session()->regenerateToken();
+
+        return redirect()->route('index');
+
+    }
 }