public JsonResult RedeemCoupon(string coupon)
{
BtceApix btceApix = new BtceApix(key, secret);
CouponResult couponResult = btceApix.RedeemCoupon(coupon);
BetBitEntities betBitEntities = new BetBitEntities();
AccountController accountController = new AccountController();
betBitEntities.Coupon.Add(new Coupon()
{
UserId = accountController.GetUser(Request).UserId,
CouponAmount = couponResult.CouponAmount,
CouponCode = coupon,
CreateDate = DateTime.Now
});
betBitEntities.SaveChanges();
return Json(couponResult, JsonRequestBehavior.AllowGet);
}