PHP code example of quellabs / canvas-payments-paypal

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

quellabs / canvas-payments-paypal example snippets

return [
    'test_mode'         => true,
    'client_id'         => '',
    'client_secret'     => '',
    'webhook_id'        => '',
    'verify_ssl'        => true,
    'account_optional'  => true,
    'brand_name'        => '',
    'return_url'        => 'https://example.com/order/thankyou',
    'cancel_return_url' => 'https://example.com/order/cancelled',
    'webhook_url'       => 'https://example.com/webhooks/paypal',
];

use Quellabs\Payments\Contracts\PaymentInterface;
use Quellabs\Canvas\Controllers\BaseController;
use Quellabs\Payments\Contracts\PaymentRequest;
use Quellabs\Payments\Contracts\PaymentInitiationException;

class CheckoutController extends BaseController {

    public function __construct(private PaymentInterface $router) {}

    /**
     * @Route("...")
     */
    public function checkout(): void {
        $request = new PaymentRequest(
            paymentModule: 'paypal',
            amount:        999,   // in minor units — €9.99
            currency:      'EUR',
            description:   'Order #12345',
        );

        try {
            $result = $this->router->initiate($request);
            return $this->redirect($result->redirectUrl);
        } catch (PaymentInitiationException $e) {
            // handle error
        }
    }
}

// In your payment_exchange listener — store the capture ID when the payment succeeds
public function onPaymentExchange(PaymentState $state): void {
    if ($state->state === PaymentStatus::Paid) {
        $this->orderRepository->updateCaptureId(
            $state->transactionId,
            $state->metadata['paymentReference']
        );
    }
}

// Full refund
$request = new RefundRequest(
    paymentReference: $order->paymentReference, // retrieved from your orders table
    paymentModule:   'paypal',
    amount:           null, // null = full refund
    currency:         'EUR',
    description:      'Full refund for order #12345',
);

// Partial refund
$request = new RefundRequest(
    paymentReference: $order->paymentReference, // retrieved from your orders table
    paymentModule: 'paypal',
    amount:        500,                 // in minor units — €5.00
    currency:      'EUR',
    description:   'Partial refund for order #12345',
);

try {
    $result = $this->router->refund($request);
    echo $result->refundId;
} catch (PaymentRefundException $e) {
    // handle error
}

use Quellabs\Canvas\Annotations\ListenTo;
use Quellabs\Payments\Contracts\PaymentState;
use Quellabs\Payments\Contracts\PaymentStatus;

class OrderService {

    /**
     * @ListenTo("payment_exchange")
     */
    public function onPaymentExchange(PaymentState $state): void {
        match ($state->state) {
            PaymentStatus::Paid      => $this->markPaid($state->transactionId),
            PaymentStatus::Canceled  => $this->markCanceled($state->transactionId),
            PaymentStatus::Failed    => $this->markFailed($state->transactionId),
            default                  => null,
        };
    }
}