{ "appSecret": "string", "couponNum": 0, "orderNum": "string" }
curl --location --request POST '/shiguo/b//coupon' \ --header 'Content-Type: application/json' \ --data-raw '{ "appSecret": "string", "couponNum": 0, "orderNum": "string" }'
{ "code": 0, "msg": "string", "data": true }