Laravel KNET Payment Integration

A robust Laravel package for integrating KNET payment gateway services in your applications. This package provides a clean and elegant way to handle payment processing, refunds, and transaction management with KNET.

Features

• 🔒 Secure payment processing
• 💳 Transaction management
• 🔄 Payment status inquiries
• ↩️ Refund processing
• 🎯 Event-driven architecture
• 📝 Detailed transaction logging
• 🛡️ Error handling
• 🔍 Transaction tracking

Installation

You can install the package via composer:

composer require asciisd/knet

After installation, publish the configuration file:

php artisan knet:publish"

Configuration

Configure your KNET credentials in your .env file:

Basic Usage

Creating a Payment

use Asciisd\Knet\Services\KnetPaymentService;

class PaymentController extends Controller
{
    public function createPayment(
        Request $request, 
        KnetPaymentService $paymentService
    ) {
        $transaction = $paymentService->createPayment(
            user: $request->user(),
            amount: 10.000,
            options: [
                'udf1' => 'custom_data_1',
                'udf2' => 'custom_data_2',
            ]
        );

        return redirect($transaction->url);
    }
}

Manual Handling Payment Response

public function handleResponse(
    Request $request, 
    KnetPaymentService $paymentService
) {
    $transaction = $paymentService->handlePaymentResponse($request->all());

    if ($transaction->paid) {
        return redirect()->route('payment.success');
    }

    return redirect()->route('payment.failed');
}

Processing Refunds

public function refund(
    KnetTransaction $transaction, 
    KnetPaymentService $paymentService
) {
    // Full refund
    $result = $paymentService->refundPayment($transaction);

    // Partial refund
    $result = $paymentService->refundPayment($transaction, 5.000);

    return $result;
}

Checking Transaction Status

public function checkStatus(
    KnetTransaction $transaction, 
    KnetPaymentService $paymentService
) {
    $updatedTransaction = $paymentService->inquireAndUpdateTransaction($transaction);
    return $updatedTransaction;
}

Events

The package dispatches several events that you can listen to:

• KnetResponseReceived: Fired when a payment response is received
• KnetResponsehandled: Fired when a payment response is handled

Event Listeners Example

use Asciisd\Knet\Events\KnetResponseReceived;

class PaymentReceivedListener
{
    public function handle(KnetResponseReceived $event)
    {
        $transactionArray = $event->payload;
        // Handle payload
    }
}

Transaction Model

The KnetTransaction model provides several helpful methods:

$transaction->rawAmount(); // Get the raw amount
$transaction->isPaid(); // Check if transaction is paid
$transaction->isRefunded(); // Check if transaction is refunded
$transaction->isRefundable(); // Check if transaction can be refunded

Error Handling

The package includes comprehensive error handling:

try {
    $result = $paymentService->refundPayment($transaction);
} catch (\Exception $e) {
    Log::error('Refund failed', [
        'message' => $e->getMessage(),
        'transaction_id' => $transaction->id
    ]);
}

Database Schema

The package includes migrations for the knet_transactions table with the following fields:

• id: Primary key
• user_id: Foreign key to users table
• trackid: KNET tracking ID
• amt: Transaction amount
• paymentid: KNET payment ID
• tranid: KNET transaction ID
• ref: Reference number
• result: Transaction result
• auth: Authorization code
• avr: AVR value
• postdate: Posting date
• paid: Payment status
• error_text: Error message if any
• url: Payment URL
• livemode: Production/Test mode flag
• Various UDF fields (udf1 to udf5)
• Refund-related fields
• Timestamps

Testing

composer test

Security

If you discover any security-related issues, please email [email protected] instead of using the issue tracker.

Credits

• Amr Emad
• All Contributors

License

The MIT License (MIT). Please see License File for more information.