https://developers.weixin.qq.com/doc/store/leagueheadsupplier/API/promotion/product/getproductpromotionlinkinfo.html

好友下单单号：3727610488381903872

请求参数
{
    "sharer_openid": "oLcph7L0-SXnjpfw9Gxwn6T-Vs4c",
    "product_id": 10000215508702,
    "shop_appid": "wx3b6f41a095a6fc05"
}

返回
{
    "errcode": 0,
    "errmsg": "ok",
    "short_link": "#微信小店://福尤食品/Nxd77piZfmatSTl"
}