> **应用场景**: >车主选择使用积分或电子券后,泊链下发用券信息给车场SDK,本地进行减免的逻辑处理,以便再次查询价格时正确返回。 字段信息: | 名称 | 说明 | 类型|最大长度 | 示例 | 是否必传字段 | | --- | --- | --- | --- | --- | --- | service_name |接口名称| String| 64 |member_discount |是 request_no |请求序号,标识本次请求,需在回复中原样返回| String |60| member_discount1564538903576 |是 order_id |订单记录号(车辆在停车场停车唯一订单编号,对应入场订单编号)|String |48 |325101 |是 car_number |车牌 |String |8 |京GH0093 |是 member_id| 会员编号| String |48| 100000000232 |是 points_use |所用积分 |Number |20 |100 |否 coupon_choose |所选优惠券,以下为其中字段 |JsonArray || | 否 coupon_id |电子券id |String |60| 12314uojdajaw123| 是 > 示例: > {"member_id":"liu20190729id001","points_use":0,"coupon_choose":[{"coupon_id":"200002"}],"service_name":"member_discount","request_no":"member_discount1564538903576","car_number":"京DTTT33","order_id":"38320"} 返回消息: | 名称 | 说明 | 类型| 示例 | 是否必传字段 | | --- | --- | --- | --- | --- | service_name |接口名称 |String |member_discount |是 state |状态| number |0失败1成功| 是 errmsg| 方法返回描述| String || 否 request_no |请求序号 取下发的request_no |String |member_discount1564538903576 |是 data_target| 上传位置 |String |bolink |是 > 示例: > {"data_target":"bolink","state":1,"service_name":"member_discount","errmsg":"用券成功!","request_no":"member_discount1564538903576"}