C# Invoicer PDF提供null，但成员身份不提供PDF null

我现在的问题是。我必须这样做，顾客可以购买一件只付一次钱的物品。因此，将发票id和PDf分配给数据库

就目前而言，当PDF为空时，我只获得发票id

我读了更多关于这方面的内容。

如果我这样做，我会从中解脱出来。我在这里得到了我想要的发票ID，但是发票上没有显示为零的内容

{
"id": "ii_1IR4UtFnB7TvDVRrzPwWo8ZW",
  "object": "invoiceitem",
  "amount": 2000,
  "currency": "usd",
  "customer": "cus_J3Aqpyt4PwqCcN",
  "date": 1614815575,
  "description": "Starter Setup",
  "discountable": true,
  "discounts": [
  ],
  "invoice": null,
  "livemode": false,
  "metadata": {
  },
....
}

有了这一点，我的想法是，我是否能够在某种程度上，使我成为会员，然后立即停止，但它在发票上说，购买只是一个单一的项目，而不是几个月

就会员资格而言，我是这样做的

var createCustomer = new CustomerCreateOptions
{
    Source = token,
    Name = model.FuldName,
    Email = model.Mail
};

var addService = new CustomerService();
var customer = addService.Create(createCustomer);

var optionsProduct = new ProductCreateOptions
{
    Name = $"Single buy - {DateTime.Now} - Kursus Id : {id}",
    Type = "service",
};
var serviceProduct = new ProductService();
Product product = serviceProduct.Create(optionsProduct);

var optionsPlan = new PlanCreateOptions
{
    Currency = "dkk",
    Interval = Helpers.Stripe.interval,
    Nickname =
        $"Single buy - {DateTime.Now} - Kursus Id : {id}",
    Amount = amount,
    Product = product.Id,
    IntervalCount = 1
};
var servicePlan = new PlanService();
Plan plan = servicePlan.Create(optionsPlan);

var items = new List<SubscriptionItemOptions>()
{
    new SubscriptionItemOptions()
    {
        Plan = plan.Id,
        Quantity = 1
    },
};
var createSubscruptionA = new SubscriptionCreateOptions
{
    Customer = customer.Id,
    Items = items,
    OffSession = true,
};
var addserviceA = new SubscriptionService();
Subscription subscription = addserviceA.Create(createSubscruptionA);

var invoiceId = subscription.LatestInvoiceId;
var service = new InvoiceService();
var pdf = service.Get(invoiceId).InvoicePdf;

---

对于一次性发票，您需要为客户创建发票项目（正如您所做的），但重要的是，您需要创建包含这些项目的发票项目

这一行对于您试图实现的目标是不正确的：

var invoiceId = invoiceItem.Id;

相反，您需要创建发票，如上面链接的文档所示：

var invoiceOptions = new InvoiceCreateOptions
{
  Customer = "cus_123",
  AutoAdvance = true,
};
var invoiceService = new InvoiceService();
var invoice = invoiceService.Create(invoiceOptions);

发票对象将具有一个

Invoice\u pdf

URL（）

---

好的，当我尝试执行您告诉我的操作时，我得到一个错误，上面写着“没有为客户开具发票”-是的，您需要先创建发票项，然后为同一客户创建发票。好的@nolan H。我已经更新/编辑了我的代码。所以你可以看看我做了什么。或者是我误解了事情的真相？好吧，现在结果如何？它起作用了吗？如果没有，会发生什么？这不起作用，这给了我同样的错误

var invoiceId = invoiceItem.Id;

var invoiceOptions = new InvoiceCreateOptions
{
  Customer = "cus_123",
  AutoAdvance = true,
};
var invoiceService = new InvoiceService();
var invoice = invoiceService.Create(invoiceOptions);

var service = new InvoiceService();
service.FinalizeInvoice(
  "in_123"
);