Использование стороннего мыла api в сети asp.net api.working локально, но не на лазурном

Question

Я пытаюсь использовать сторонние мыльные API в веб-интерфейсе asp.net.Он работает локально, но при запуске в Azure получает сообщение об исключении «Заголовок HTTP Content-Type необходим для обмена сообщениями SOAP, и ни один из них не был найден».

Вот код контроллера значений asp.net api.Сбой при вызове метода signin ().

ValuesController.cs

[HttpPost]
    //public VoucherRedeemtionData RedeemVoucher(string voucherCode, float cartValue)
    public async Task<VoucherRedeemtionData> RedeemVoucher([FromBody] CouponData coupon)
    {
        float transactionAmount = 0;
        string WorkKey = await SignIn();
        string voucherCode = coupon.voucherCode;
        float cartValue = coupon.cartValue;
        ValidationData couponValidationData = await ValidateVoucher(voucherCode);

        if (couponValidationData.message == "Success")
        {
            float couponBalance = float.Parse(couponValidationData.balance);
            float cartValueInPaise = cartValue * 100;
            if (cartValueInPaise < couponBalance)
            {
                transactionAmount = cartValueInPaise;
            }
            else
            {
                transactionAmount = couponBalance;
            }
        }
        else
        {
            VoucherRedeemtionData voucherRedemptionData = new VoucherRedeemtionData
            {
                transactionAmount = 0,
                message = couponValidationData.message,
                voucherBalance = couponValidationData.balance
            };
            return voucherRedemptionData;
        }

        VoucherRedeemtionData voucherRedeemtionData = await VoucherRedemption(voucherCode, transactionAmount);

        await SignOut();
        return voucherRedeemtionData;
    }

ValuesController.cs

  private async Task<string> SignIn()
    {
        string ManageType = "101";
        string TerminalSSN = CalculateTerminalSSN();
        string ManageTerminalDateTime = CalculateManageTerminalDateTime();
        string ChecksumInput = Channel + "=" + MerchantCode + "=" + ProgramCode + "=" + ShopCode + "=" + TerminalCode + "=" + TerminalSSN + "=" + ManageTerminalDateTime + "=" + ManageType + "=" + MerchantSecurityKey;
        string Checksum = CalculateManageTerminalChecksum(ChecksumInput);

        POSProxyServiceReference2.ManageTerminalRequestIn request = new POSProxyServiceReference2.ManageTerminalRequestIn
        {
            Channel = Channel,
            Checksum = Checksum,
            ManageTerminalDateTime = ManageTerminalDateTime,
            ManageType = ManageType,
            MerchantCode = MerchantCode,
            ProgramCode = ProgramCode,
            ShopCode = "",
            TerminalCode = "",
            TerminalSSN = TerminalSSN
        };

        POSProxyServiceReference2.POSProxyClient pOSProxyClient = new POSProxyServiceReference2.POSProxyClient();

        pOSProxyClient.InnerChannel.OperationTimeout = new TimeSpan(0, 10, 0);


        POSProxyServiceReference2.ManageTerminalResponseOut response = await pOSProxyClient.ManageTerminalAsync(request);
        if (response.Message == "Success")
        {
            WorkKey = response.WorkKey;
        }

        pOSProxyClient.Close();
        return response.WorkKey;
    }

Webapicongig.cs

        config.Routes.MapHttpRoute(
           name: "RedeemVoucher",
           routeTemplate: "api/RedeemVoucher/{coupon}",
           defaults: new { controller = "Values", coupon = RouteParameter.Optional }
           );