public Response addCoupon(Coupon coupon)
        {
            Rewards rewards = new Rewards();

            if (rewards.AddCouponCode(coupon))
            {
                return(new Response {
                    status = "200", message = "OK"
                });
            }
            else
            {
                return(new Response {
                    status = "500", message = "Did not add"
                });
            }
        }