@@ -303,7 +303,7 @@ class Shopware

         return $this->sendRequest('search/order-line-item',$options,'POST');

     }

-    public function queryAPI(string $strUrlFragment, ?string $strBody, string $strMethod = 'GET', bool $blnAuthenticate=true): ResponseInterface

+    public function queryAPI(string $strUrlFragment, null|string|array $body, string $strMethod = 'GET', bool $blnAuthenticate=true): ResponseInterface

     {

         $options = [

             'headers' => [

@@ -317,9 +317,14 @@ class Shopware

             $options['headers'][] = $this->getAuthentication();

         }

-        if ($strBody !== null)

+        if ($body !== null)

         {

-            $options['body'] = $strBody;

+            if (is_array($body))

+            {

+                $options['body'] = json_encode($body);

+            } else {

+                $options['body'] = $body;

+            }

         }

         return $this->sendRequest($strUrlFragment,$options,$strMethod);