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Name	Size	Permission
Chunk	[ DIR ]	drwxrwxr-x
DataCollector	[ DIR ]	drwxrwxr-x
DependencyInjection	[ DIR ]	drwxrwxr-x
Exception	[ DIR ]	drwxrwxr-x
Internal	[ DIR ]	drwxrwxr-x
Response	[ DIR ]	drwxrwxr-x
Retry	[ DIR ]	drwxrwxr-x
AmpHttpClient.php	6.97 KB	-rw-rw-r--
AsyncDecoratorTrait.php	1.37 KB	-rw-rw-r--
CHANGELOG.md	2.18 KB	-rw-rw-r--
CachingHttpClient.php	5.44 KB	-rw-rw-r--
CurlHttpClient.php	24.79 KB	-rw-rw-r--
DecoratorTrait.php	1.5 KB	-rw-rw-r--
EventSourceHttpClient.php	5.75 KB	-rw-rw-r--
HttpClient.php	3.4 KB	-rw-rw-r--
HttpClientTrait.php	25.29 KB	-rw-rw-r--
HttpOptions.php	5.44 KB	-rw-rw-r--
HttplugClient.php	9.78 KB	-rw-rw-r--
LICENSE	1.04 KB	-rw-rw-r--
MockHttpClient.php	4.16 KB	-rw-rw-r--
NativeHttpClient.php	18.2 KB	-rw-rw-r--
NoPrivateNetworkHttpClient.php	4.12 KB	-rw-rw-r--
Psr18Client.php	8.15 KB	-rw-rw-r--
README.md	913 B	-rw-rw-r--
RetryableHttpClient.php	5.83 KB	-rw-rw-r--
ScopingHttpClient.php	4.08 KB	-rw-rw-r--
TraceableHttpClient.php	3.41 KB	-rw-rw-r--
composer.json	1.67 KB	-rw-rw-r--

Code Editor : RetryableHttpClient.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\HttpClient;

use Psr\Log\LoggerInterface;
use Psr\Log\NullLogger;
use Symfony\Component\HttpClient\Response\AsyncContext;
use Symfony\Component\HttpClient\Response\AsyncResponse;
use Symfony\Component\HttpClient\Retry\GenericRetryStrategy;
use Symfony\Component\HttpClient\Retry\RetryStrategyInterface;
use Symfony\Contracts\HttpClient\ChunkInterface;
use Symfony\Contracts\HttpClient\Exception\TransportExceptionInterface;
use Symfony\Contracts\HttpClient\HttpClientInterface;
use Symfony\Contracts\HttpClient\ResponseInterface;
use Symfony\Contracts\Service\ResetInterface;

/**
 * Automatically retries failing HTTP requests.
 *
 * @author Jérémy Derussé <jeremy@derusse.com>
 */
class RetryableHttpClient implements HttpClientInterface, ResetInterface
{
    use AsyncDecoratorTrait;

private $strategy;
    private $maxRetries;
    private $logger;

/**
     * @param int $maxRetries The maximum number of times to retry
     */
    public function __construct(HttpClientInterface $client, RetryStrategyInterface $strategy = null, int $maxRetries = 3, LoggerInterface $logger = null)
    {
        $this->client = $client;
        $this->strategy = $strategy ?? new GenericRetryStrategy();
        $this->maxRetries = $maxRetries;
        $this->logger = $logger ?? new NullLogger();
    }

public function request(string $method, string $url, array $options = []): ResponseInterface
    {
        if ($this->maxRetries <= 0) {
            return new AsyncResponse($this->client, $method, $url, $options);
        }

$retryCount = 0;
        $content = '';
        $firstChunk = null;

return new AsyncResponse($this->client, $method, $url, $options, function (ChunkInterface $chunk, AsyncContext $context) use ($method, $url, $options, &$retryCount, &$content, &$firstChunk) {
            $exception = null;
            try {
                if ($chunk->isTimeout() || null !== $chunk->getInformationalStatus() || $context->getInfo('canceled')) {
                    yield $chunk;

return;
                }
            } catch (TransportExceptionInterface $exception) {
                // catch TransportExceptionInterface to send it to the strategy
            }
            if (null !== $exception) {
                // always retry request that fail to resolve DNS
                if ('' !== $context->getInfo('primary_ip')) {
                    $shouldRetry = $this->strategy->shouldRetry($context, null, $exception);
                    if (null === $shouldRetry) {
                        throw new \LogicException(sprintf('The "%s::shouldRetry()" method must not return null when called with an exception.', \get_class($this->strategy)));
                    }

if (false === $shouldRetry) {
                        yield from $this->passthru($context, $firstChunk, $content, $chunk);

return;
                    }
                }
            } elseif ($chunk->isFirst()) {
                if (false === $shouldRetry = $this->strategy->shouldRetry($context, null, null)) {
                    yield from $this->passthru($context, $firstChunk, $content, $chunk);

return;
                }

// Body is needed to decide
                if (null === $shouldRetry) {
                    $firstChunk = $chunk;
                    $content = '';

return;
                }
            } else {
                if (!$chunk->isLast()) {
                    $content .= $chunk->getContent();

return;
                }

if (null === $shouldRetry = $this->strategy->shouldRetry($context, $content, null)) {
                    throw new \LogicException(sprintf('The "%s::shouldRetry()" method must not return null when called with a body.', \get_class($this->strategy)));
                }

if (false === $shouldRetry) {
                    yield from $this->passthru($context, $firstChunk, $content, $chunk);

return;
                }
            }

$context->getResponse()->cancel();

$delay = $this->getDelayFromHeader($context->getHeaders()) ?? $this->strategy->getDelay($context, !$exception && $chunk->isLast() ? $content : null, $exception);
            ++$retryCount;

$this->logger->info('Try #{count} after {delay}ms'.($exception ? ': '.$exception->getMessage() : ', status code: '.$context->getStatusCode()), [
                'count' => $retryCount,
                'delay' => $delay,
            ]);

$context->setInfo('retry_count', $retryCount);
            $context->replaceRequest($method, $url, $options);
            $context->pause($delay / 1000);

if ($retryCount >= $this->maxRetries) {
                $context->passthru();
            }
        });
    }

private function getDelayFromHeader(array $headers): ?int
    {
        if (null !== $after = $headers['retry-after'][0] ?? null) {
            if (is_numeric($after)) {
                return (int) $after * 1000;
            }

if (false !== $time = strtotime($after)) {
                return max(0, $time - time()) * 1000;
            }
        }

return null;
    }

private function passthru(AsyncContext $context, ?ChunkInterface $firstChunk, string &$content, ChunkInterface $lastChunk): \Generator
    {
        $context->passthru();

if (null !== $firstChunk) {
            yield $firstChunk;
        }

if ('' !== $content) {
            $chunk = $context->createChunk($content);
            $content = '';

yield $chunk;
        }

yield $lastChunk;
    }
}

${this.title}

Code Editor : RetryableHttpClient.php