Backoff retry plugin¶
The Guzzle\Plugin\Backoff\BackoffPlugin
automatically retries failed HTTP requests using custom backoff strategies:
use Guzzle\Http\Client;
use Guzzle\Plugin\Backoff\BackoffPlugin;
$client = new Client('http://www.test.com/');
// Use a static factory method to get a backoff plugin using the exponential backoff strategy
$backoffPlugin = BackoffPlugin::getExponentialBackoff();
// Add the backoff plugin to the client object
$client->addSubscriber($backoffPlugin);
The BackoffPlugin’s constructor accepts a Guzzle\Plugin\Backoff\BackoffStrategyInterface
object that is used to
determine when a retry should be issued and how long to delay between retries. The above code example shows how to
attach a BackoffPlugin to a client that is pre-configured to retry failed 500 and 503 responses using truncated
exponential backoff (emulating the behavior of Guzzle 2’s ExponentialBackoffPlugin).