https://developers.weixin.qq.com/doc/ministore/union/access-guidelines/promoter/api/product/category.html

参数是这个

{"pid":"olIhv5Owrbf3EbOPjddpY8B5XR7Q_871679398","productList":[{"productId":38133489,"appId":"wxf565e2dfa175c3fa"}]}