public string MakePurchase(double Dollars, double EthPurchaseAmount /*,ClientBtcWalletAddress*/)
        {
            // Create a OctagonWallet Object
            OctagonWallet wallet = new OctagonWallet();

            // Get Ether Balance in the wallet
            var EthWalletBalance = wallet.GetEthAvailable();

            // Withdraw money from the bank equal to the purchase
            BankWithdrawal Withdrawal = new BankWithdrawal(Dollars.ToString());

            // Make purchase
            BuyETH purchase = new BuyETH(EthPurchaseAmount);

            // While Ether's are not available in wallet, keep cheking until it's available in order to make a transfer
            while (Double.Parse(EthWalletBalance) < EthPurchaseAmount)
            {
                EthWalletBalance = wallet.GetEthAvailable();
            }

            // Make transfer to user's wallet from octagon's wallet
            // Create a EtherTransfer Object
            EtherTransfer signature = new EtherTransfer(EthPurchaseAmount /*, ClientEthWalletAddress  */);

            // View Result. ID if Successful, Error if not
            return(purchase.getResponseString());
        }
        public string MakePurchase()
        {
            // Create a BuyBTC Object
            BuyETH purchase = new BuyETH();

            // View Result. ID if Successful, Error if not
            return(purchase.getResponseString());
        }