From 255ae419d5ea0ab29bb96a7a7b5256a893a01be2 Mon Sep 17 00:00:00 2001
From: Philipp Melab <philipp.melab@gmail.com>
Date: Sat, 15 Apr 2023 08:00:34 +0200
Subject: [PATCH] fix(graphql): temporary fix for GET-based GraphQL queries

https://github.com/drupal-graphql/graphql/pull/1317
---
 .../silverback_graphql_persisted.services.yml |  5 ++++
 .../FixGraphQLCachingSubscriber.php           | 27 +++++++++++++++++++
 2 files changed, 32 insertions(+)
 create mode 100644 packages/composer/amazeelabs/silverback_graphql_persisted/silverback_graphql_persisted.services.yml
 create mode 100644 packages/composer/amazeelabs/silverback_graphql_persisted/src/EventSubscriber/FixGraphQLCachingSubscriber.php

diff --git a/packages/composer/amazeelabs/silverback_graphql_persisted/silverback_graphql_persisted.services.yml b/packages/composer/amazeelabs/silverback_graphql_persisted/silverback_graphql_persisted.services.yml
new file mode 100644
index 000000000..f146f7374
--- /dev/null
+++ b/packages/composer/amazeelabs/silverback_graphql_persisted/silverback_graphql_persisted.services.yml
@@ -0,0 +1,5 @@
+services:
+  fix_graphql_caching_subscriber:
+    class: Drupal\silverback_graphql_persisted\EventSubscriber\FixGraphQLCachingSubscriber
+    tags:
+      - { name: event_subscriber }
\ No newline at end of file
diff --git a/packages/composer/amazeelabs/silverback_graphql_persisted/src/EventSubscriber/FixGraphQLCachingSubscriber.php b/packages/composer/amazeelabs/silverback_graphql_persisted/src/EventSubscriber/FixGraphQLCachingSubscriber.php
new file mode 100644
index 000000000..12f5adfb7
--- /dev/null
+++ b/packages/composer/amazeelabs/silverback_graphql_persisted/src/EventSubscriber/FixGraphQLCachingSubscriber.php
@@ -0,0 +1,27 @@
+<?php
+namespace Drupal\silverback_graphql_persisted\EventSubscriber;
+
+use Drupal\graphql\Event\OperationEvent;
+use Symfony\Component\EventDispatcher\EventSubscriberInterface;
+
+/**
+ * Fix GraphQL caching when internal page cache is active:
+ *
+ * TODO:
+ * Can be removed when https://github.com/drupal-graphql/graphql/pull/1317 is
+ * resolved.
+ */
+class FixGraphQLCachingSubscriber implements EventSubscriberInterface {
+
+  public function onBeforeOperation(OperationEvent $event): void {
+    $event->getContext()->addCacheContexts(
+      ['url.query_args:variables', 'url.query_args:extensions']
+    );
+  }
+
+  public static function getSubscribedEvents() {
+    return [
+      OperationEvent::GRAPHQL_OPERATION_BEFORE => 'onBeforeOperation',
+    ];
+  }
+}