/**
* Middleware wrapper function that retries requests based on the boolean
* result of invoking the provided "decider" function.
*
* If no delay function is provided, a simple implementation of exponential
* backoff will be utilized.
*
* @param callable $decider Function that accepts the number of retries,
* a request, [result], and [exception] and
* returns true if the command is to be retried.
* @param callable $delay Function that accepts the number of retries and
* returns the number of milliseconds to delay.
*
* @return callable
*/
public static function retry(callable $decider = null, callable $delay = null)
{
$decider = $decider ?: RetryMiddleware::createDefaultDecider();
$delay = $delay ?: [RetryMiddleware::class, 'exponentialDelay'];
return function (callable $handler) use($decider, $delay) {
return new RetryMiddleware($decider, $delay, $handler);
};
}
public static function _apply_retries($value, array &$args, HandlerList $list)
{
if ($value) {
$decider = RetryMiddleware::createDefaultDecider($value);
$list->appendSign(Middleware::retry($decider), 'retry');
}
}