add notification service

laravel/app/Services/Notification/Exceptions/NotificationServerNotRespondingException.php

@@ -0,0 +1,37 @@
+<?php
+
+namespace App\Services\Notification\Exceptions;
+
+use App\Exceptions\Throwable;
+use Exception;
+use Illuminate\Http\JsonResponse;
+
+class NotificationServerNotRespondingException extends Exception
+{
+    public $message;
+
+    public function __construct(string $message = "", int $code = 500, ?Throwable $previous = null)
+    {
+        $this->message = $message;
+
+        parent::__construct($message, $code, $previous);
+    }
+
+    /**
+     * Report the exception.
+     */
+    public function report(): void
+    {
+        // ...
+    }
+
+    /**
+     * Render the exception into an HTTP response.
+     */
+    public function render(): JsonResponse
+    {
+        return response()->json([
+            'message' => $this->message
+        ], $this->code);
+    }
+}