收到 Stripe Webhook 后在数据库中保存项目

Question

当我从 Stripe 收到一个 webhook 说订阅已创建时，我正在尝试更新我的数据库以授予该用户访问我的订阅服务的权限。 Webhook 进来说订阅已创建，所以我获取 UserID 并使用它在我的数据库中查找用户。然后我更新用户记录，将 SubscriptionStatus 更改为 1，表示它处于活动状态。当我尝试将该信息保存到数据库时，它抛出一个异常，并且我从 Stripe 收到一条错误消息，指出 webhook 因错误 400（错误请求）而失败。根据 Stripe 的回复，它说“由于语法格式错误，服务器无法理解该请求。”

这是我从 Stripe 收到的回复：

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml"> 
<head> 
<title>IIS 10.0 Detailed Error - 400.0 - Bad Request</title> 
<style type="text/css"> 
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--> 
</style> 
 
</head> 
<body> 
<div id="content"> 
<div class="content-container"> 
  <h3>HTTP Error 400.0 - Bad Request</h3> 
  <h4>Bad Request</h4> 
</div> 
<div class="content-container"> 
 <fieldset><h4>Most likely causes:</h4> 
  <ul>  <li></li> </ul> 
 </fieldset> 
</div> 
<div class="content-container"> 
 <fieldset><h4>Things you can try:</h4> 
  <ul>  <li>Check the failed request tracing logs for additional information about this error. For more information, click <a href="http://go.microsoft.com/fwlink/?LinkID=66439">here</a>. </li> </ul> 
 </fieldset> 
</div> 
 
<div class="content-container"> 
 <fieldset><h4>Detailed Error Information:</h4> 
  <div id="details-left"> 
   <table border="0" cellpadding="0" cellspacing="0"> 
    <tr class="alt"><th>Module</th><td>&nbsp;&nbsp;&nbsp;ManagedPipelineHandler</td></tr> 
    <tr><th>Notification</th><td>&nbsp;&nbsp;&nbsp;ExecuteRequestHandler</td></tr> 
    <tr class="alt"><th>Handler</th><td>&nbsp;&nbsp;&nbsp;System.Web.Mvc.MvcHandler</td></tr> 
    <tr><th>Error Code</th><td>&nbsp;&nbsp;&nbsp;0x00000000</td></tr> 
     
   </table> 
  </div> 
  <div id="details-right"> 
   <table border="0" cellpadding="0" cellspacing="0"> 
    <tr class="alt"><th>Requested URL</th><td>&nbsp;&nbsp;&nbsp;https://localhost:44394/Stripe/StripeWebhook</td></tr> 
    <tr><th>Physical Path</th><td>&nbsp;&nbsp;&nbsp;C:\Users\steve\source\repos\Church Musician Administration App\Church Musician Administration App (Updated)\Stripe\StripeWebhook</td></tr> 
    <tr class="alt"><th>Logon Method</th><td>&nbsp;&nbsp;&nbsp;Anonymous</td></tr> 
    <tr><th>Logon User</th><td>&nbsp;&nbsp;&nbsp;Anonymous</td></tr> 
     
   </table> 
   <div class="clear"></div> 
  </div> 
 </fieldset> 
</div> 
 
<div class="content-container"> 
 <fieldset><h4>More Information:</h4> 
  The request could not be understood by the server due to malformed syntax. 
  <p><a href="https://go.microsoft.com/fwlink/?LinkID=62293&amp;IIS70Error=400,0,0x00000000,19042">View more information &raquo;</a></p> 
  <p>Microsoft Knowledge Base Articles:</p> 
 <ul><li></li></ul> 
 
 </fieldset> 
</div> 
</div> 
</body> 
</html>

这是我的应用程序中的 Webhook 端点：

using System;
using System.Collections.Generic;
using System.Data.Entity;
using System.IO;
using System.Linq;
using System.Net;
using System.Threading.Tasks;
using System.Web;
using System.Web.Mvc;
using Database_Access;
using Stripe;

namespace Church_Musician_Administration_App__Updated_.Controllers
{

    public class StripeController : Controller
    {
        private churchmusicianEntities db = new churchmusicianEntities();
        [AllowAnonymous]
        [HttpPost]
        public ActionResult StripeWebhook()
        {
            try
            {
                var json = new StreamReader(HttpContext.Request.InputStream).ReadToEnd();

                // validate webhook called by stripe only
                var stripeEvent = EventUtility.ConstructEvent(json, Request.Headers["Stripe-Signature"], "whsec_jLsw8GxNmEKkcyxhjNeDTpJvI5xhggXu");

                switch (stripeEvent.Type)
                {
                    case "customer.created":
                        var customer = stripeEvent.Data.Object as Customer;
                        // do work

                        break;

                    case "customer.subscription.created":
                        var subscriptionCreated = stripeEvent.Data.Object as Subscription;
                        string subscriptionCustID = subscriptionCreated.CustomerId;
                        var subscriptionCustomers = db.logins.Where(x => x.StripeCustomerID == subscriptionCustID);
                        foreach (var subscriptionCustomer in subscriptionCustomers)
                        {
                            if (subscriptionCreated.Status == "trialing" || subscriptionCreated.Status == "active")
                            {
                                subscriptionCustomer.SubscriptionStatus = 1;
                                db.Entry(subscriptionCustomer).State = EntityState.Modified;
                                db.SaveChanges();
                                
                            }
                        }

                        break;
                    case "customer.subscription.updated":
                    case "customer.subscription.deleted":
                    case "customer.subscription.trial_will_end":
                        var subscription = stripeEvent.Data.Object as Subscription;
                        // do work
                        
                        break;

                    case "invoice.created":
                        var newinvoice = stripeEvent.Data.Object as Invoice;
                        // do work
                        
                        break;

                    case "invoice.upcoming":
                    case "invoice.payment_succeeded":
                        var successPayment = stripeEvent.Data.Object as Invoice;
                        string customerID = successPayment.CustomerId;
                        var custs = db.logins.Where(x => x.StripeCustomerID == customerID);
                        foreach (var cust in custs)
                        {
                            cust.SubscriptionExpiration = successPayment.PeriodEnd.ToString();
                            db.SaveChanges();
                        }
                        
                        break;
                    case "invoice.payment_failed":
                        var changeSubscription = stripeEvent.Data.Object as Invoice;
                        
                        string customerID2 = changeSubscription.CustomerId;
                        if(changeSubscription.Status != "active")
                        {
                            var payingCustomers = db.logins.Where(x => x.StripeCustomerID == customerID2);
                            foreach (var payingCustomer in payingCustomers)
                            {
                                payingCustomer.SubscriptionStatus = 0;
                                db.SaveChanges();
                            }
                        }
                            

                        

                        // do work

                        break;

                    case "coupon.created":
                    case "coupon.updated":
                    case "coupon.deleted":
                        var coupon = stripeEvent.Data.Object as Coupon;
                        // do work

                        break;

                        // DO SAME FOR OTHER EVENTS
                }

                return new HttpStatusCodeResult(HttpStatusCode.OK);
            }
            catch (StripeException ex)
            {
                //_logger.LogError(ex, $"StripWebhook: {ex.Message}");
                return new HttpStatusCodeResult(HttpStatusCode.BadRequest);
            }
            catch (Exception ex)
            {
                //_logger.LogError(ex, $"StripWebhook: {ex.Message}");
                return new HttpStatusCodeResult(HttpStatusCode.BadRequest);
            }


        }
    }
}

Answer 1

问题可能是由于您的数据库逻辑出现问题，导致您的服务器 return 将完整错误发送给 Stripe，而 Stripe 无法读取。相反，您应该 return 提前 200 以指示已收到 webhook 事件，然后处理您的业务逻辑：https://stripe.com/docs/webhooks/build#return-a-2xx-status-code-quickly

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