PHP code example of stfn / php-circuit-breaker

1. Go to this page and download the library: Download stfn/php-circuit-breaker library. Choose the download type require.

2. Extract the ZIP file and open the index.php.

3. Add this code to the index.php. 
    
        
<?php
require_once('vendor/autoload.php');

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

stfn / php-circuit-breaker example snippets


use Stfn\CircuitBreaker\CircuitBreaker;

$result = CircuitBreaker::for('3rd-party-service')->call(function () {
    // Your function that could fail
});


use Stfn\CircuitBreaker\CircuitBreaker;

$breaker = CircuitBreaker::for('3rd-party-service')->forceOpenCircuit();


use Stfn\CircuitBreaker\Storage\RedisStorage;
use Stfn\CircuitBreaker\CircuitBreaker;

$redis = new \Redis();
$redis->connect("127.0.0.1");

$storage = new RedisStorage($redis);

$result = CircuitBreaker::for('3rd-party-service')
    ->storage($storage)
    ->call(function () {
        // Your function that could fail
    });


use Stfn\CircuitBreaker\CircuitBreaker;

$breaker = CircuitBreaker::for('3rd-party-service')
    ->withOptions([
        'failure_threshold' => 10, // Number of failures triggering the transition to the open state
        'recovery_time' => 120, // Time in seconds to keep the circuit breaker open before attempting recovery
        'sample_duration' => 60, // Duration in seconds within which failures are counted
        'consecutive_success' => 3 // Number of consecutive successful calls 

use Stfn\CircuitBreaker\CircuitBreaker;

$breaker = CircuitBreaker::for('3rd-party-service')
    ->skipFailureCount(function ($exception) {
        return $exception->getCode() < 500;
    });


use Stfn\CircuitBreaker\CircuitBreakerListener;
use Stfn\CircuitBreaker\CircuitState;

class LoggerListener extends CircuitBreakerListener
{
    public function beforeCall(CircuitBreaker $breaker, \Closure $action,...$args) : void
    {
        Log::info("before call");    
    }
    
    public function onSuccess(CircuitBreaker $breaker, $result): void
    {
        Log::info($result);
    }

    public function onFail(CircuitBreaker $breaker, $exception) : void
    {
        Log::info($exception);
    }
    
    public function onStateChange(CircuitBreaker $breaker, CircuitState $previousState, CircuitState $newState)
    {
        Log::info($previousState, $newState);
    }
}


use Stfn\CircuitBreaker\CircuitBreaker;

$breaker = CircuitBreaker::for('3rd-party-service')
    ->listeners([new LoggerListener()]);

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