From c6eb4e28a0bd78e1d7f431f6269061f1653a3b80 Mon Sep 17 00:00:00 2001
From: Tareq Mahmood <tareqtms@yahoo.com>
Date: Sat, 19 Jul 2025 19:46:08 +0800
Subject: [PATCH] Content-Length Header

---
 lib/HttpRequestGraphQL.php | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/HttpRequestGraphQL.php b/lib/HttpRequestGraphQL.php
index fe6106c..84fa2f6 100644
--- a/lib/HttpRequestGraphQL.php
+++ b/lib/HttpRequestGraphQL.php
@@ -52,6 +52,8 @@ protected static function prepareRequest($httpHeaders = array(), $data = array()
         } else {
             self::$postDataGraphQL = json_encode(['query' => $data]);
         }
+
+        self::$httpHeaders['Content-Length'] = strlen(self::$postDataGraphQL);
     }
 
     /**