PHP code example of sudiptpa / omnipay-esewa

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

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

    

sudiptpa / omnipay-esewa example snippets

declare(strict_types=1);

use Sujip\Esewa\Esewa;
use Sujip\Esewa\Domain\Checkout\CheckoutRequest;

$client = Esewa::make(
    merchantCode: 'EPAYTEST',
    secretKey: $_ENV['ESEWA_SECRET_KEY'],
    environment: 'uat',
);

$intent = $client->checkout()->createIntent(new CheckoutRequest(
    amount: '100',
    taxAmount: '0',
    serviceCharge: '0',
    deliveryCharge: '0',
    transactionUuid: 'TXN-1001',
    productCode: 'EPAYTEST',
    successUrl: 'https://merchant.example.com/esewa/success',
    failureUrl: 'https://merchant.example.com/esewa/failure',
));

use Sujip\Esewa\Domain\Checkout\CheckoutRequest;
use Sujip\Esewa\ValueObject\Amount;
use Sujip\Esewa\ValueObject\ProductCode;
use Sujip\Esewa\ValueObject\TransactionUuid;

$request = new CheckoutRequest(
    amount: Amount::fromString('100'),
    taxAmount: Amount::fromString('0'),
    serviceCharge: Amount::fromString('0'),
    deliveryCharge: Amount::fromString('0'),
    transactionUuid: TransactionUuid::fromString('TXN-1001'),
    productCode: ProductCode::fromString('EPAYTEST'),
    successUrl: 'https://merchant.example.com/esewa/success',
    failureUrl: 'https://merchant.example.com/esewa/failure',
);

$payload = $request->toArray();
$restored = CheckoutRequest::fromArray($payload);

use Sujip\Esewa\Domain\Verification\CallbackPayload;
use Sujip\Esewa\Domain\Verification\VerificationExpectation;

$payload = CallbackPayload::fromArray([
    'data' => $_GET['data'] ?? '',
    'signature' => $_GET['signature'] ?? '',
]);

$result = $client->callbacks()->verifyCallback(
    $payload,
    new VerificationExpectation(
        totalAmount: '100.00',
        transactionUuid: 'TXN-1001',
        productCode: 'EPAYTEST',
    )
);

if ($result->state->value === 'replayed') {
    http_response_code(409);
    exit('Replay detected');
}

if (!$result->isSuccessful()) {
    http_response_code(400);
    exit('Invalid callback');
}

use Sujip\Esewa\Domain\Transaction\TransactionStatusRequest;

$status = $client->transactions()->fetchStatus(new TransactionStatusRequest(
    transactionUuid: 'TXN-1001',
    totalAmount: '100.00',
    productCode: 'EPAYTEST',
));

if ($status->isSuccessful()) {
    // mark paid
}

use Sujip\Esewa\Config\ClientOptions;
use Sujip\Esewa\Esewa;
use Sujip\Esewa\Infrastructure\Idempotency\FilesystemIdempotencyStore;

$client = Esewa::make(
    merchantCode: 'EPAYTEST',
    secretKey: $_ENV['ESEWA_SECRET_KEY'],
    environment: 'uat',
    options: new ClientOptions(
        preventCallbackReplay: true,
        idempotencyStore: new FilesystemIdempotencyStore(__DIR__ . '/storage/esewa-idempotency'),
    ),
);

use Sujip\Esewa\Config\ClientOptions;
use Sujip\Esewa\Support\FixedDelayRetryPolicy;

$options = new ClientOptions(
    retryPolicy: new FixedDelayRetryPolicy(
        maxRetries: 3,
        delayUs: 250000,
    ),
);

use Omnipay\Esewa\SecureGateway;

$gateway = new SecureGateway();
$gateway->setMerchantCode('EPAYTEST');
$gateway->setSecretKey($_ENV['ESEWA_SECRET_KEY']);
$gateway->setProductCode('EPAYTEST');
$gateway->setTestMode(true);
$gateway->setReturnUrl('https://merchant.example.com/esewa/success');
$gateway->setFailureUrl('https://merchant.example.com/esewa/failure');