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Example of how to create a retry subscriber for Guzzle 6
<?php
use GuzzleHttp\Client;
use GuzzleHttp\Exception\ConnectException;
use GuzzleHttp\Exception\RequestException;
use GuzzleHttp\Handler\CurlHandler;
use GuzzleHttp\HandlerStack;
use GuzzleHttp\Psr7\Request as Psr7Request;
use GuzzleHttp\Psr7\Response as Psr7Response;
use Psr\Log\LoggerInterface;
const MAX_RETRIES = 2;
require_once __DIR__ . '/../vendor/autoload.php';
/**
* @param LoggerInterface $logger
* @return Client
*/
function createHttpClient(LoggerInterface $logger)
{
$stack = HandlerStack::create(new CurlHandler());
$stack->push(\GuzzleHttp\Middleware::retry(createRetryHandler($logger)));
$client = new Client([
'handler' => $stack,
]);
return $client;
}
function createRetryHandler(LoggerInterface $logger)
{
return function (
$retries,
Psr7Request $request,
Psr7Response $response = null,
RequestException $exception = null
) use ($logger) {
if ($retries >= MAX_RETRIES) {
return false;
}
if (!(isServerError($response) || isConnectError($exception))) {
return false;
}
$logger->warning(sprintf(
'Retrying %s %s %s/%s, %s',
$request->getMethod(),
$request->getUri(),
$retries + 1,
MAX_RETRIES,
$response ? 'status code: ' . $response->getStatusCode() : $exception->getMessage()
), [$request->getHeader('Host')[0]]);
return true;
};
}
/**
* @param Psr7Response $response
* @return bool
*/
function isServerError(Psr7Response $response = null)
{
return $response && $response->getStatusCode() >= 500;
}
/**
* @param RequestException $exception
* @return bool
*/
function isConnectError(RequestException $exception = null)
{
return $exception instanceof ConnectException;
}

ghprod commented Jan 8, 2017 edited

You need to put your blog url in here for detail 👍

https://addshore.com/2015/12/guzzle-6-retry-middleware/

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