用于 POS 信用卡刷卡的 Windows 窗体应用程序中的贝宝沙盒测试帐户

Posted 2023-02-22

【中文标题】用于 POS 信用卡刷卡的 Windows 窗体应用程序中的贝宝沙盒测试帐户

【英文标题】：paypal sandbox test account in windows form application in C# for POS credit card swipe

【发布时间】：2015-07-09 23:09:23

【问题描述】：

我创建了一个 Windows 窗体应用程序示例。 我在 Visual Studio 中下载了 pay pal sdk。 我创建了paypal沙盒测试账号

在哪里添加凭据详细信息？

我们放置应用程序 ID 的位置：

沙盒测试 AppID：

APP-80W284485P519543T

点击按钮时，我复制了一些 winform 应用程序的代码。

 Dictionary<string, string> sdkConfig = new Dictionary<string, string>();
            sdkConfig.Add("mode", "sandbox");
            accessToken = new OAuthTokenCredential("AQkquBDf1zctJOWGKWUEtKXm6qVhueUEMvXO_-MCI4DQQ4-LWvkDLIN2fGsd", "EL1tVxAjhT7cJimnz5-Nsx9k2reTKSVfErNQF-CmrwJgxRtylkGTKlU4RvrX", sdkConfig).GetAccessToken();
HttpContext CurrContext = HttpContext.Current;
            APIContext apiContext = new APIContext(accessToken);
            Item item = new Item();
            item.name = _ItemDescription;
            item.currency = "USD";
            item.price = _Amount;
            item.quantity = "1";
            item.sku = _UPC;

            List<Item> itms = new List<Item>();
            itms.Add(item);
            ItemList itemList = new ItemList();
            itemList.items = itms;

            Address billingAddress = new Address();
            billingAddress.city = "Chennai";
            billingAddress.country_code = "US";
            billingAddress.line1 = "11/12";
            billingAddress.line2 = "Andavar nager main street";
            billingAddress.postal_code = "600089";
            billingAddress.state = "Tamil nadu";

            CreditCard crdtCard = new CreditCard();
            crdtCard.billing_address = billingAddress;
            crdtCard.cvv2 = 2222;
            crdtCard.expire_month = 4;
            crdtCard.expire_year = 2020;
            crdtCard.first_name = "Arul";
            crdtCard.last_name = "Murugan";
            crdtCard.number = "4032039053301695";
            crdtCard.type = "visa";

            Details details = new Details();
            details.tax = "0";
            details.shipping = "0";
            details.subtotal = _Amount;

            Amount amont = new Amount();
            amont.currency = "USD";
            amont.total = _Amount;
            amont.details = details;

            Transaction tran = new Transaction();
            tran.amount = amont;
            tran.description = _ItemDescription;
            tran.item_list = itemList;

            List<Transaction> transactions = new List<Transaction>();
            transactions.Add(tran);

            FundingInstrument fundInstrument = new FundingInstrument();
            fundInstrument.credit_card = crdtCard;

            List<FundingInstrument> fundingInstrumentList = new List<FundingInstrument>();
            fundingInstrumentList.Add(fundInstrument);

            PayerInfo pi = new PayerInfo();
            pi.email = "[e-mail]";
            pi.first_name = "Arul";
            pi.last_name = "Murugan";


            Payer payr = new Payer();
            payr.funding_instruments = fundingInstrumentList;
            payr.payment_method = "credit_card";
            payr.payer_info = pi;

            pi.shipping_address = new ShippingAddress
            
                city = "San Mateo",
                country_code = "US",
                line1 = "SO TEST",
                line2 = "",
                postal_code = "94002",
                state = "CA",
            ; 

            Payment paymnt = new Payment();
            paymnt.intent = "sale";
            paymnt.payer = payr;
            paymnt.transactions = transactions;
            try
            
                Payment createdPayment = paymnt.Create(apiContext);
                CurrContext.Items.Add("ResponseJson", JObject.Parse(createdPayment.ConvertToJson()).ToString(Formatting.Indented));
            
            catch (PayPal.Exception.PayPalException ex)
            
                if (ex.InnerException is PayPal.Exception.ConnectionException)
                
                    CurrContext.Response.Write(((PayPal.Exception.ConnectionException)ex.InnerException).Response);
                
                else
                
                    CurrContext.Response.Write(ex.Message);
                
            
            catch (Exception es)
            
                MessageBox.Show( es.ToString());
            
            CurrContext.Items.Add("RequestJson", JObject.Parse(paymnt.ConvertToJson()).ToString(Formatting.Indented));

我的参考链接是

http://pastebin.com/H7VuPQs4

Parsing a PayPal REST Credit Card Transaction Response (JSON), C# PayPal REST API Checkout with Credit Card

请通过win form申请向我解释POS（销售点）信用卡交易的任何其他方式。

【参考方案1】：

PayPal .NET SDK 适用于以安全方式存储应用程序凭据的服务器应用程序（例如 ASP.NET）。直接从在 POS 系统上运行的 WinForms 应用程序使用 SDK 存在安全风险，因为您的商家帐户凭据未以安全方式存储。理想情况下，POS 系统应该与某处执行处理的安全服务器进行通信。

话虽如此，这个用例正是 PayPal Here 的设计目的。