How to call a GraphQL in laravel artisan

Yes, we can call GraphQL in another client with http post. But here I want call in the host laravel.

+use Nuwave\Lighthouse\GraphQL;
+// use Nuwave\Lighthouse\Support\Contracts\CreatesContext;
+use Nuwave\Lighthouse\Execution\ContextFactory;

+// use Nuwave\Lighthouse\Support\Contracts\GraphQLContext;
 /*
 |--------------------------------------------------------------------------
 | API Routes
@@ -38,20 +42,15 @@
           }
         }
     GQL;
-    $graphqlEndpoint = config('app.url') . '/graphql';
-    $client = new \GuzzleHttp\Client();
-    $response = $client->request('POST', $graphqlEndpoint, [
-      'headers' => [
-        'Content-Type' => 'application/json',
-      ],
-      'json' => [
-        'query' => $query
-      ]
-    ]);

-    $json = $response->getBody()->getContents();
-    $body = json_decode($json, true);
-    return ['data' => $body['data']['data']];
+    $graphQL = app(GraphQL::class);
+    $createsContext = app(ContextFactory::class);
+    $context = $createsContext->generate($request);
+    $result = $graphQL->executeQueryString($query, $context);
+
+    return ['data' => $result['data']['data']]
 });