PHP code example of leocarmo / circuit-breaker-php

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

leocarmo / circuit-breaker-php example snippets

use LeoCarmo\CircuitBreaker\CircuitBreaker;
use LeoCarmo\CircuitBreaker\Adapters\RedisAdapter;

// Connect to redis
$redis = new \Redis();
$redis->connect('localhost', 6379);

$adapter = new RedisAdapter($redis, 'my-product');

// Set redis adapter for CB
$circuit = new CircuitBreaker($adapter, 'my-service');

use LeoCarmo\CircuitBreaker\CircuitBreaker;
use LeoCarmo\CircuitBreaker\Adapters\RedisClusterAdapter;

// Connect to redis
$redis = new \Redis();
$redis->connect('localhost', 6379);

$adapter = new RedisClusterAdapter($redis, 'my-product');

// Set redis adapter for CB
$circuit = new CircuitBreaker($adapter, 'my-service');

use LeoCarmo\CircuitBreaker\CircuitBreaker;

$circuit = new CircuitBreaker(new SwooleTableAdapter(), 'my-service');

use GuzzleHttp\Client;
use GuzzleHttp\HandlerStack;
use LeoCarmo\CircuitBreaker\GuzzleMiddleware;

$handler = new GuzzleMiddleware($circuit);

$handlers = HandlerStack::create();
$handlers->push($handler);

$client = new Client(['handler' => $handlers]);

$response = $client->get('leocarmo.dev');

$handler = new GuzzleMiddleware($circuit);
$handler->setCustomSuccessCodes([400]);

$handler = new GuzzleMiddleware($circuit);
$handler->setCustomIgnoreCodes([412]);

$circuit->setSettings([
    'timeWindow' => 60, // Time for an open circuit (seconds)
    'failureRateThreshold' => 50, // Fail rate for open the circuit
    'intervalToHalfOpen' => 30,  // Half open time (seconds)
]);

// Check circuit status for service
if (! $circuit->isAvailable()) {
    die('Circuit is not available!');
}

// Usage example for success and failure  
try {
    myService();
    $circuit->success();
} catch (RuntimeException $e) {
    // If an error occurred, it must be recorded as failure.
    $circuit->failure();
}