c# - 在 C# 中为 PayPal 身份验证 header 生成签名

Question

我的目标是代表第 3 方商家向另一个 paypal 帐户发送发票。我正在使用权限服务成功获取权限，从而获得访问 token 和关联的 secret 。

但是，我不明白在创建/发送发票时如何使用访问 token 和关联的 secret 来构建 header 。

我正在使用 C# .NET Invoicing SDK与 Invoicing Service API 沟通.

这是我用来创建和发送发票的代码。

RequestEnvelope envelopeRequest = new RequestEnvelope();
envelopeRequest.errorLanguage = "en_GB";

List<InvoiceItemType> invoiceItemList = new List<InvoiceItemType>();

InvoiceItemType invoiceItem = new InvoiceItemType("Item", Convert.ToDecimal("2"), Convert.ToDecimal("4.00"));
invoiceItemList.Add(invoiceItem);

InvoiceItemListType itemList = new InvoiceItemListType(invoiceItemList);

InvoiceType invoice = new InvoiceType("jb-us-seller@paypal.com", "jbui-us-personal1@paypal.com", itemList, "USD");

CreateAndSendInvoiceRequest requestCreateAndSendInvoice = new CreateAndSendInvoiceRequest(envelopeRequest, invoice);

InvoiceService service = new InvoiceService();

responseCreateAndSendInvoice = service.CreateAndSendInvoice(requestCreateAndSendInvoice);

Answer 1

在黑暗中摸索了一段时间后，我发现 .NET Invoicing SDK 负责创建 header 。 InvoiceService 有两种方法将 token 和 secret 分配给 header 。详情请见下文。

RequestEnvelope envelopeRequest = new RequestEnvelope();
envelopeRequest.errorLanguage = "en_GB";

List<InvoiceItemType> invoiceItemList = new List<InvoiceItemType>();

InvoiceItemType invoiceItem = new InvoiceItemType("Item", Convert.ToDecimal("2"), Convert.ToDecimal("4.00"));
invoiceItemList.Add(invoiceItem);

InvoiceItemListType itemList = new InvoiceItemListType(invoiceItemList);

InvoiceType invoice = new InvoiceType("shop1@test.co.uk", "buyer1@gmail.com", itemList, "USD");

CreateAndSendInvoiceRequest requestCreateAndSendInvoice = new CreateAndSendInvoiceRequest(envelopeRequest, invoice);

Dictionary<string, string> list = new Dictionary<string, string>();
list.Add("mode", "sandbox");
list.Add("account1.apiUsername", "contact-facilitator_api1.testdomain.com");
list.Add("account1.apiPassword", "xxxx");
list.Add("account1.apiSignature", "xxxx--xxx");

InvoiceService service = new InvoiceService(list);

service.SetAccessToken(accessToken);
service.SetAccessTokenSecret(secret);

responseCreateAndSendInvoice = service.CreateAndSendInvoice(requestCreateAndSendInvoice);