/home/kueuepay/public_html/vendor/symfony/mailer/Transport/RoundRobinTransport.php
<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\Mailer\Transport;

use Symfony\Component\Mailer\Envelope;
use Symfony\Component\Mailer\Exception\TransportException;
use Symfony\Component\Mailer\Exception\TransportExceptionInterface;
use Symfony\Component\Mailer\SentMessage;
use Symfony\Component\Mime\RawMessage;

/**
 * Uses several Transports using a round robin algorithm.
 *
 * @author Fabien Potencier <fabien@symfony.com>
 */
class RoundRobinTransport implements TransportInterface
{
    /**
     * @var \SplObjectStorage<TransportInterface, float>
     */
    private \SplObjectStorage $deadTransports;
    private array $transports = [];
    private int $retryPeriod;
    private int $cursor = -1;

    /**
     * @param TransportInterface[] $transports
     */
    public function __construct(array $transports, int $retryPeriod = 60)
    {
        if (!$transports) {
            throw new TransportException(sprintf('"%s" must have at least one transport configured.', static::class));
        }

        $this->transports = $transports;
        $this->deadTransports = new \SplObjectStorage();
        $this->retryPeriod = $retryPeriod;
    }

    public function send(RawMessage $message, Envelope $envelope = null): ?SentMessage
    {
        $exception = null;

        while ($transport = $this->getNextTransport()) {
            try {
                return $transport->send($message, $envelope);
            } catch (TransportExceptionInterface $e) {
                $exception ??= new TransportException('All transports failed.');
                $exception->appendDebug(sprintf("Transport \"%s\": %s\n", $transport, $e->getDebug()));
                $this->deadTransports[$transport] = microtime(true);
            }
        }

        throw $exception ?? new TransportException('No transports found.');
    }

    public function __toString(): string
    {
        return $this->getNameSymbol().'('.implode(' ', array_map('strval', $this->transports)).')';
    }

    /**
     * Rotates the transport list around and returns the first instance.
     */
    protected function getNextTransport(): ?TransportInterface
    {
        if (-1 === $this->cursor) {
            $this->cursor = $this->getInitialCursor();
        }

        $cursor = $this->cursor;
        while (true) {
            $transport = $this->transports[$cursor];

            if (!$this->isTransportDead($transport)) {
                break;
            }

            if ((microtime(true) - $this->deadTransports[$transport]) > $this->retryPeriod) {
                $this->deadTransports->detach($transport);

                break;
            }

            if ($this->cursor === $cursor = $this->moveCursor($cursor)) {
                return null;
            }
        }

        $this->cursor = $this->moveCursor($cursor);

        return $transport;
    }

    protected function isTransportDead(TransportInterface $transport): bool
    {
        return $this->deadTransports->contains($transport);
    }

    protected function getInitialCursor(): int
    {
        // the cursor initial value is randomized so that
        // when are not in a daemon, we are still rotating the transports
        return mt_rand(0, \count($this->transports) - 1);
    }

    protected function getNameSymbol(): string
    {
        return 'roundrobin';
    }

    private function moveCursor(int $cursor): int
    {
        return ++$cursor >= \count($this->transports) ? 0 : $cursor;
    }
}
Initiate Payment

Initiate Payment

Initiates a new payment transaction.

Endpoint: POST create-order
Parameter Type Details
amount decimal Your Amount , Must be rounded at 2 precision.
currency string Currency Code, Must be in Upper Case (Alpha-3 code)
success_url string Enter your return or success URL
cancel_url string (optional) Enter your cancel or failed URL
                    
                        Request Example (guzzle)
                        

<?php
require_once('vendor/autoload.php');
$client = new \GuzzleHttp\Client();
$response = $client->request('POST', $base_url.'create-order', [
'headers' => [
  'Authorization' => 'Bearer '. $authorizationToken,
  'accept' => 'application/json',
  'content-type' => 'application/json',
 ],
'form_params' => [
  'amount' => '$amount',
  'currency' => 'currency',
  'success_url' => 'success_url',
  'cancel_url' => 'cancel_url',
 ],
]);
echo $response->getBody();
                    
                        
**Response: SUCCESS (200 OK)**
{
 "message": {
 "success": [
  "Order created successfully."
 ]
},
"data": {
 "redirect_url":"https://example.com/login/OISADFDFSDFSF",
 "order_details":{
 "amount" : "10",
 "fixed_charge" : 2,
 "percent_charge" : 1,
 "total_charge" : 3,
 "total_payable" : 13,
 "currency" : "USD",
 "expiry_time": "2024-04-25T06:48:35.984285Z",
 "success_url": "http://127.0.0.1/nfcpay/user/transaction/success",
 "cancel_url": "http://127.0.0.1/nfcpay/user/transaction/cancel"
}
},
"type": "success"
}
                    
                        
**Response: ERROR (400 FAILED)**
{
 "message": {
 "error": [
  "Invalid token."
 ]
},
"data": null,
"type": "error"
}