C# 在C语言中为PayPal身份验证头生成签名#

我的目标是代表第三方商户向另一个贝宝账户发送发票。我正在使用权限服务成功获取权限，从而生成访问令牌和关联的机密

但是，我不明白在创建/发送发票时如何使用访问令牌和相关的机密来构建报头

我正在使用与进行通信

下面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);

requestEnveloperRequest=newrequestEnvelope（）；
EnveloperRequest.errorLanguage=“en_GB”；
List invoiceItemList=新列表（）；
InvoiceItemType invoiceItem=新的InvoiceItemType（“Item”，Convert.ToDecimal（“2”），Convert.ToDecimal（“4.00”）；
添加（invoiceItem）；
InvoiceItemListType itemList=新的InvoiceItemListType（invoiceItemList）；
发票类型发票=新发票类型（“jb us-seller@paypal.com“，”JBUIUS-personal1@paypal.com“，项目清单，“美元”）；
CreateAndSendInvoiceRequestCreateAndSendInvoice=新建CreateAndSendInvoiceRequest（信封请求，发票）；
InvoiceService=新的InvoiceService（）；
responseCreateAndSendInvoice=service.CreateAndSendInvoice（requestCreateAndSendInvoice）；

在黑暗中摸索了一段时间后，我发现.NET发票SDK负责创建标题。InvoiceService有两种方法将令牌和密钥分配给报头。详情见下文

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); 

requestEnveloperRequest=newrequestEnvelope（）；
EnveloperRequest.errorLanguage=“en_GB”；
List invoiceItemList=新列表（）；
InvoiceItemType invoiceItem=新的InvoiceItemType（“Item”，Convert.ToDecimal（“2”），Convert.ToDecimal（“4.00”）；
添加（invoiceItem）；
InvoiceItemListType itemList=新的InvoiceItemListType（invoiceItemList）；
发票类型发票=新发票类型（“shop1@test.co.uk", "buyer1@gmail.com“，项目清单，“美元”）；
CreateAndSendInvoiceRequestCreateAndSendInvoice=新建CreateAndSendInvoiceRequest（信封请求，发票）；
字典列表=新字典（）；
添加（“模式”、“沙盒”）；
添加（“account1.apiUsername”、“contact-facilitator_api1.testdomain.com”）；
列表。添加（“account1.apiPassword”、“xxxx”）；
列表。添加（“账户1.APICHAGNATION”、“xxxx--xxx”）；
发票服务=新发票服务（列表）；
service.SetAccessToken（accessToken）；
service.SetAccessTokenSecret（secret）；
responseCreateAndSendInvoice=service.CreateAndSendInvoice（requestCreateAndSendInvoice）；