Twilio集成Stripe连接器：使用Pay动词传递额外信息的方法

我已在Twilio系统中配置Stripe连接器，并在控制器中调用Pay功能。目前仅能通过Stripe支付条目的description字段传递信息，现需实现两个需求：

• 用来电者电话号码更新Stripe的customer字段
• 传递与数据库表条目关联的GUID，使其出现在监听的Stripe Webhook（如payment_intent.succeeded/payment.charged等）中，例如更新metadata属性

我已花费大量时间研究但未找到方案，若无法实现则只能复用description字段后续修改。以下是我的代码：

[HttpPost]
public IActionResult TakeStripePayment(PaymentId id, VoiceRequest request)
{
    var response = new VoiceResponse();

    var payment = (from p in _DbContext.Payment where p.Id == id select p).Single();

    var subMeter = (from p in _DbContext.SMPSupplyMeter where p.Id == payment.SMPSupplyMeterId select p.SubMeter).Single();
    var meterNo = ShortMeterNo(subMeter.Serial.ToString());
    response.Say("You will now be asked to enter your card details. After entering digits, press the hash key to move on to the next question.");
    var pay = new Pay(paymentConnector: _config.PaymentConnector.ToString(), 
        description: PaymentUtility.GetDescriptionForPaymentGateway(payment) + $" {request.From}", 
        timeout: 15, currency: "gbp", chargeAmount: $"{Math.Round(payment.Amount.Value)}", postalCode: "false", 
        action: new Uri($"/voice/AfterPay?id={payment.Id}", 
        UriKind.Relative));
   // something here to send the number and GUID? e.g. pay.SetOption() or pay.Parameter()? Example?
    var prompt = new Twilio.TwiML.Voice.Prompt(for_: Twilio.TwiML.Voice.Prompt.ForEnum.PaymentCardNumber).Say("Please enter long card number.");
    pay.Append(prompt);
    prompt = new Twilio.TwiML.Voice.Prompt(for_: Twilio.TwiML.Voice.Prompt.ForEnum.ExpirationDate).Say("Please enter the expiration date as 4 digits.");
    pay.Append(prompt);
    prompt = new Twilio.TwiML.Voice.Prompt(for_: Twilio.TwiML.Voice.Prompt.ForEnum.SecurityCode).Say("Please enter the three security digits on the back of the card.");
    pay.Append(prompt);
    prompt = new Twilio.TwiML.Voice.Prompt(for_: Twilio.TwiML.Voice.Prompt.ForEnum.PaymentProcessing);
    pay.Append(prompt);
    response.Append(pay);
    return TwiML(response);
}

请问是否有实现上述需求的方法示例？

内容的提问来源于stack exchange，提问作者Rabbi Kaii