Circuit Breaker

More information: https://martinfowler.com/bliki/CircuitBreaker.html

Installation

composer require ksaveras/circuit-breaker

Use

Simple circuit check

use \Ksaveras\CircuitBreaker\CircuitBreakerFactory;
use \Ksaveras\CircuitBreaker\Storage\ApcuStorage;

$factory = new CircuitBreakerFactory(
    [
        'failure_threshold' => 3,
        'retry_policy' => 'exponential',
        'reset_timeout' => 300,
    ],
    new ApcuStorage()
);

$circuitBreaker = $factory->create('service-api');

if ($circuitBreaker->isAvailable()) {
    try {
        // call 3rd party service api
        $circuitBreaker->success();
    } catch (\Exception $exception) {
        $circuitBreaker->failure();
    }   
}

Use callback

use \Ksaveras\CircuitBreaker\Exception\OpenCircuitException;
use \Ksaveras\CircuitBreaker\CircuitBreakerFactory;
use \Ksaveras\CircuitBreaker\Storage\ApcuStorage;

$factory = new CircuitBreakerFactory(
    [
        'failure_threshold' => 3,
        'retry_policy' => 'exponential',
        'reset_timeout' => 300,
    ],
    new ApcuStorage()
);

$circuitBreaker = $factory->create('service-api');

try {
    $circuitBreaker->call(
        function () {
            $this->callApi();
        }
    );
} catch (OpenCircuitException $exception) {
    // Open circuit
} catch (\Exception $exception) {
    // 3rd party exception
}

Tests

composer test

Code quality

composer phpstan
composer phpcsfix