Composer library for JD.ID open API version 2. Please found something related with the Open API in this link
composer install haistar/jos-api-client
// Setup Client
$client = new JosApiClient($_ENV["SERVER_URL"], $_ENV["ACCESS_TOKEN"]);
$client->appKey = $_ENV["APP_KEY"];
$client->appSecret = $_ENV["APP_SECRET"];
// Setup Request
$request = new JosApiRequest("jingdong.epistock.queryEpiMerchantWareStock");
$request->addRequestParam("wareStockQueryListSt", "[{'skuId':601267085,'realNum':1}]");
// Execute API Request
$response = $client->execute($request);