PayPal 对接

文章相应链接:

官方SDK:https://developer.paypal.com/docs/api/rest-sdks/

官方API:https://developer.paypal.com/docs/api/payments/v1/

官方.NET 支付案例:https://paypal.github.io/PayPal-NET-SDK/Samples/PaymentWithPayPal.aspx.html

官方SDK 支付使用逻辑:https://developer.paypal.com/docs/api/quickstart/create-process-order/#

PayPal 支付流程说明:

1。安装官方SDK (上面的第一个链接)

  .NET 案例: Install-package Paypal

2.编写支付代码(上面的第4个链接)

3.创建支付订单详情,返回一个approval_url(获得这个URL)返回前端请求跳转到这个页面确认订单信息,用户点击支付按钮。

4.paypa 回调 后台配置的 URL 

5.处理业务逻辑,例如修改订单状态等等

6.UI 渲染支付成功页面。

7. End 结束。

代码案例:

public static bool PayPalCreate(string payerId) // 这个ID 是回调的时候自己传递过来的。所以自行获取调用

{

try

{

var payer = new Payer() { payment_method = "paypal" };

var config = ConfigManager.Instance.GetProperties();

var accessToken = new OAuthTokenCredential(config).GetAccessToken();

var apiContext = new APIContext(accessToken);

string createParamId = "";

if (string.IsNullOrEmpty(payerId))

{

var guid = Convert.ToString((new Random()).Next(100000));

//var baseURI = Request.Url.Scheme + "://" + Request.Url.Authority + "/PaymentWithPayPal.aspx?";

var baseUrl = "https://164l647f09.51mypc.cn/PayStripe.ashx?method=PayImageListTest?";

var redirectUrl = baseUrl + "guid=" + guid;

var redirUrls = new RedirectUrls()

{

cancel_url = redirectUrl + "&cancel=true",

return_url = redirectUrl

};

var itemList = new ItemList()

{

items = new List<Item>()

{

new Item()

{

name = "Item Name",

currency = "TWD",

price = "15",

quantity = "5",

sku = "sku"

},

new Item()

{

name = "Item Name2",

currency = "TWD",

price = "15",

quantity = "5",

sku = "sku"

}

}

};

var details = new Details()

{

tax = "30",  // 这几个价格都是要  求和, 并且相等,  官网有说明

shipping = "10",

subtotal = "150"

};

var amount = new Amount()

{

currency = "TWD",

total = "190.00", // Total must be equal to sum of shipping, tax and subtotal.

details = details

};

var transactionList = new List<Transaction>();

transactionList.Add(new Transaction()

{

description = "Transaction description.",

invoice_number = "123456789101113",

amount = amount,

item_list = itemList

});

var payment = new Payment()

{

intent = "sale",

payer = payer,

redirect_urls = redirUrls,

transactions = transactionList,

};

var createdPayment = payment.Create(new APIContext(accessToken));

createParamId = createdPayment.id;   // 需要存储起来,方便回调的时候用这个ID去做支付扣款,我这边没做存储,只是复制出来了,然后调试的时候粘贴上去做的扣款

//   payerId = createdPayment.payer.payer_info.payer_id;

var links = createdPayment.links.GetEnumerator();

while (links.MoveNext())

{

var link = links.Current;

if (link.rel.ToLower().Trim().Equals("approval_url"))

{

  var linkUrl = link.href;

// Redirect the customer to link.href

}

}

// Using the information from the redirect, setup the payment to execute.

}

else

{

var createdPaymentId = createParamId;   // 需要存储起来,方便回调的时候用这个ID去做支付扣款,我这边没做存储,只是复制出来了,然后调试的时候粘贴上去做的扣款

var paymentExecution = new PaymentExecution() { payer_id = payerId };

var payment2 = new Payment() { id = createdPaymentId };

// Execute the payment.

var executedPayment = payment2.Execute(apiContext, paymentExecution);

}

return true;

}

catch (Exception ex)

{

return false;

}

}

一个简单的支付案例分享,官网有很多支付模式,大伙可以自己去瞅瞅。

 文章中有很多依赖没有完全写清楚,需要自行去看看官方文档 琢磨,比如安装了Nuget包,web.config 的配置没写 ClientID,秘钥。等等

PayPal 对接

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