查询商家券详情 
商户可通过该接口查询已创建的商家券批次详情信息。
js
wxpay.v3.marketing.busifavor.stocks._stock_id_.get({
  stock_id,
})
.then(
  ({ 
    data: {
      stock_name,
      belong_merchant,
      comment,
      goods_name,
      stock_type,
      coupon_use_rule,
      stock_send_rule,
      custom_entrance,
      display_pattern_info,
      stock_state,
      coupon_code_mode,
      stock_id,
      coupon_code_count,
      notify_config,
      send_count_information,
    },
  }) => ({
    stock_name,
    belong_merchant,
    comment,
    goods_name,
    stock_type,
    coupon_use_rule,
    stock_send_rule,
    custom_entrance,
    display_pattern_info,
    stock_state,
    coupon_code_mode,
    stock_id,
    coupon_code_count,
    notify_config,
    send_count_information,
  })
)修改商家券基本信息 
商户可以通过该接口修改商家券基本信息
js
wxpay.v3.marketing.busifavor.stocks._stock_id_.patch({
  custom_entrance,
  comment,
  goods_name,
  out_request_no,
  display_pattern_info,
  coupon_use_rule,
  stock_send_rule,
  notify_config,
}, { stock_id, })
.then(({ status, }) => status === 204)