PHP新手30天實戰金流, Laravel6

前言

退款是根據商家 capture 交易進行。
若商家還沒有 capture, 等於買家的錢還在自己的帳戶中，所以沒辦法進行退款。

主要執行函式

$captureRefund = $capture->refundCapturedPayment($refundRequest, $this->apiContext);

• 自己寫一個讓商家取款的函式

public function MerchantCapture(Order $order,Request $request){

        $amount=$request->all()['amount'];
        $authorization = Authorization::get($order->authorize_id, $this->apiContext);

        $amt = new Amount();
        $amt->setCurrency($order->currency_code)
            ->setTotal($amount);

        ### Capture
        $capture = new Capture();
        $capture->setAmount($amt);

        // Perform a capture
        try {
            
            $getCapture = $authorization->capture($capture, $this->apiContext);
            $this->out->writeln("getCapture: " . $getCapture);
            $order->update([
                'capture_id' =>$getCapture->id,
            ]);
        } catch (\Throwable $th) {
            //throw $th;
            $this->out->writeln("capture error: " . $th);
        }
        
        
    }

ps 為了Demo方便直接把商家取款的按鈕放在訂單上（好拉 其實是還沒有寫管理者介面 嗚嗚..）

一些錯誤訊息

• {"name":"MALFORMED_REQUEST","message":"The requested resource was not found","information_link":"https://developer.paypal

並沒有找到 capture 交易。原因可能是 capture id 不對。

• [{"issue":"PARTIAL_REFUND_NOT_ALLOWED","description":"You cannot do a refund less than the original capture amount."}],"links":[{"href":"https://developer.paypal.com/docs/api/payments/v2/#error-PARTIAL_REFUND_NOT_ALLOWED","rel":"information_link"}]}

錯誤來自 refund 金額低於 capture 金額，改成一樣就ok了