記錄一下接入paypal 全過程
因專案的原因要用到國外的支付和國外的信用卡，查了一下paypal就內建了信用卡付款方式，所以只需要接入paypal就能基本滿足專案海外支付的需求。
查了一下文件發現web端可以接入js的支付和服務端sdk的支付，這裡選擇了php-sdk支付
一. 下載sdk
在composer.json中加入 "paypal/rest-api-sdk-php" : "1.7.4"
在命令列中執行 composer update
二. 註冊開發者帳號、建立應用
地址：https://developer.paypal.com
建立沙盒測試賬戶（註冊時會自動生成一個個人賬戶和商家賬戶，如果不能使用就自己建立幾個）：https://developer.paypal.com/developer/accounts/
1. 建立應用
2. 獲取應用配置
shndbox為沙盒環境配置，live反之
3. 建立測試帳號
點選create account設定測試帳號金額和密碼
三.程式碼
調起paypal支付
<?php
namespace App\Http\Controllers\Api;
use Illuminate\Http\Request;
use App\Http\Controllers\Controller;
use PayPal\Api\Payer;
use PayPal\Api\Item;
use PayPal\Api\ItemList;
use PayPal\Api\Details;
use PayPal\Api\Amount;
use PayPal\Api\Transaction;
use PayPal\Api\RedirectUrls;
use PayPal\Api\Payment;
use PayPal\Auth\OAuthTokenCredential;
use PayPal\Exception\PayPalConnectionException;
use PayPal\Rest\ApiContext;
use PayPal\Api\PaymentExecution;
class paypalController extends Controller
{
const clientId = 'xxxxxxxxx';//ID
const clientSecret = 'xxxxxxxx';//祕鑰
const accept_url = 'http://laravel-rbac.cc/Api/paypal/Callback';//返回地址
const Currency = 'USD';//幣種
protected $PayPal;
public function __construct()
{
$this->PayPal = new ApiContext(
new OAuthTokenCredential(
self::clientId,
self::clientSecret
)
);
//如果是沙盒測試環境不設定，請註釋掉
// $this->PayPal->setConfig(
// array(
// 'mode' => 'live',
// )
// );
}
/**
* @param
* $product 商品
* $price 價錢
* $shipping 運費
* $description 描述內容
*/
public function pay()
{
$product = '1123';
$price = 1;
$shipping = 0;
$description = '1123123';
$paypal = $this->PayPal;
$total = $price + $shipping;//總價
$payer = new Payer();
$payer->setPaymentMethod('paypal');
$item = new Item();
$item->setName($product)->setCurrency(self::Currency)->setQuantity(1)->setPrice($price);
$itemList = new ItemList();
$itemList->setItems([$item]);
$details = new Details();
$details->setShipping($shipping)->setSubtotal($price);
$amount = new Amount();
$amount->setCurrency(self::Currency)->setTotal($total)->setDetails($details);
$transaction = new Transaction();
$transaction->setAmount($amount)->setItemList($itemList)->setDescription($description)->setInvoiceNumber(uniqid());
$redirectUrls = new RedirectUrls();
$redirectUrls->setReturnUrl(self::accept_url . '?success=true')->setCancelUrl(self::accept_url . '/?success=false');
$payment = new Payment();
$payment->setIntent('sale')->setPayer($payer)->setRedirectUrls($redirectUrls)->setTransactions([$transaction]);
try {
$payment->create($paypal);
} catch (PayPalConnectionException $e) {
echo $e->getData();
die();
}
$approvalUrl = $payment->getApprovalLink();
header("Location: {$approvalUrl}");
}
同步回撥 - 用於確認使用者是否付款
/**
* 回撥
*/
public function Callback()
{
$success = trim($_GET['success']);
if ($success == 'false' && !isset($_GET['paymentId']) && !isset($_GET['PayerID'])) {
echo '取消付款';die;
}
$paymentId = trim($_GET['paymentId']);
$PayerID = trim($_GET['PayerID']);
if (!isset($success, $paymentId, $PayerID)) {
echo '支付失敗';die;
}
if ((bool)$_GET['success'] === 'false') {
echo '支付失敗，支付ID【' . $paymentId . '】,支付人ID【' . $PayerID . '】';die;
}
$payment = Payment::get($paymentId, $this->PayPal);
$execute = new PaymentExecution();
$execute->setPayerId($PayerID);
try {
$payment->execute($execute, $this->PayPal);
} catch (Exception $e) {
echo ',支付失敗，支付ID【' . $paymentId . '】,支付人ID【' . $PayerID . '】';die;
}
echo '支付成功，支付ID【' . $paymentId . '】,支付人ID【' . $PayerID . '】';die;
}非同步回撥 - 用於處理業務邏輯
要先在控制皮膚設定回撥地址，必須為Https,設定後要等一會才會生效
public function notify(){
//獲取回撥結果
$json_data = $this->get_JsonData();
if(!empty($json_data)){
Log::debug("paypal notify info:\r\n".json_encode($json_data));
}else{
Log::debug("paypal notify fail:參加為空");
}
//自己列印$json_data的值看有那些是你業務上用到的
//比如我用到
$data['invoice'] = $json_data['resource']['invoice_number'];
$data['txn_id'] = $json_data['resource']['id'];
$data['total'] = $json_data['resource']['amount']['total'];
$data['status'] = isset($json_data['status'])?$json_data['status']:'';
$data['state'] = $json_data['resource']['state'];
try {
//處理相關業務
} catch (\Exception $e) {
//記錄錯誤日誌
Log::error("paypal notify fail:".$e->getMessage());
return "fail";
}
return "success";
}
public function get_JsonData(){
$json = file_get_contents('php://input');
if ($json) {
$json = str_replace("'", '', $json);
$json = json_decode($json,true);
}
return $json;
}退款
public function returnMoney()
{
try {
$txn_id = "xxxxxxx"; //非同步加調中拿到的id
$amt = new Amount();
$amt->setCurrency('USD')
->setTotal('99'); // 退款的費用
$refund = new Refund();
$refund->setAmount($amt);
$sale = new Sale();
$sale->setId($txn_id);
$refundedSale = $sale->refund($refund, $this->PayPal);
} catch (\Exception $e) {
// PayPal無效退款
return json_decode(json_encode(['message' => $e->getMessage(), 'code' => $e->getCode(), 'state' => $e->getMessage()])); // to object
}
// 退款完成
return $refundedSale;
}檢視相關流水
支付成為後到測試帳號裡檢視流水https://www.sandbox.paypal.com/myaccount/home
結語
Paypal 由於是英文文件查了很多部落格結合著文件來做的，下面是
php-sdk文件的地址：
http://paypal.github.io/PayPal-PHP-SDK/