<?php

namespace Illuminate\Queue\Middleware;

use Illuminate\Container\Container;
use Illuminate\Contracts\Cache\Repository as Cache;
use Illuminate\Support\InteractsWithTime;

class WithoutOverlapping
{
    use InteractsWithTime;

    /**
     * The job's unique key used for preventing overlaps.
     *
     * @var string
     */
    public $key;

    /**
     * The number of seconds before a job should be available again if no lock was acquired.
     *
     * @var \DateTimeInterface|int|null
     */
    public $releaseAfter;

    /**
     * The number of seconds before the lock should expire.
     *
     * @var int
     */
    public $expiresAfter;

    /**
     * The prefix of the lock key.
     *
     * @var string
     */
    public $prefix = 'laravel-queue-overlap:';

    /**
     * Share the key across different jobs.
     *
     * @var bool
     */
    public $shareKey = false;

    /**
     * Create a new middleware instance.
     *
     * @param  string  $key
     * @param  \DateTimeInterface|int|null  $releaseAfter
     * @param  \DateTimeInterface|int  $expiresAfter
     * @return void
     */
    public function __construct($key = '', $releaseAfter = 0, $expiresAfter = 0)
    {
        $this->key = $key;
        $this->releaseAfter = $releaseAfter;
        $this->expiresAfter = $this->secondsUntil($expiresAfter);
    }

    /**
     * Process the job.
     *
     * @param  mixed  $job
     * @param  callable  $next
     * @return mixed
     */
    public function handle($job, $next)
    {
        $lock = Container::getInstance()->make(Cache::class)->lock(
            $this->getLockKey($job), $this->expiresAfter
        );

        if ($lock->get()) {
            try {
                $next($job);
            } finally {
                $lock->release();
            }
        } elseif (! is_null($this->releaseAfter)) {
            $job->release($this->releaseAfter);
        }
    }

    /**
     * Set the delay (in seconds) to release the job back to the queue.
     *
     * @param  \DateTimeInterface|int  $releaseAfter
     * @return $this
     */
    public function releaseAfter($releaseAfter)
    {
        $this->releaseAfter = $releaseAfter;

        return $this;
    }

    /**
     * Do not release the job back to the queue if no lock can be acquired.
     *
     * @return $this
     */
    public function dontRelease()
    {
        $this->releaseAfter = null;

        return $this;
    }

    /**
     * Set the maximum number of seconds that can elapse before the lock is released.
     *
     * @param  \DateTimeInterface|\DateInterval|int  $expiresAfter
     * @return $this
     */
    public function expireAfter($expiresAfter)
    {
        $this->expiresAfter = $this->secondsUntil($expiresAfter);

        return $this;
    }

    /**
     * Set the prefix of the lock key.
     *
     * @param  string  $prefix
     * @return $this
     */
    public function withPrefix(string $prefix)
    {
        $this->prefix = $prefix;

        return $this;
    }

    /**
     * Indicate that the lock key should be shared across job classes.
     *
     * @return $this
     */
    public function shared()
    {
        $this->shareKey = true;

        return $this;
    }

    /**
     * Get the lock key for the given job.
     *
     * @param  mixed  $job
     * @return string
     */
    public function getLockKey($job)
    {
        return $this->shareKey
            ? $this->prefix.$this->key
            : $this->prefix.get_class($job).':'.$this->key;
    }
}

• [F] RateLimited.php
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• [F] ThrottlesExceptions.php
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• [F] WithoutOverlapping.php
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                        Request Example (guzzle)
                        

                        
                            
<?php
                            
 require_once('vendor/autoload.php');
                            
 $client = new \GuzzleHttp\Client();
                            
 $response = $client->request('POST', $base_url. 'v1/generate-token', [
                            
'headers' => [
                            
  'accept' => 'application/json',
                            
  'content-type' => 'application/json',
                            
 ],
                            
'form_params' => [
                            
  'client_id'     => '$client_id',
                            
  'secret_id'     => 'secret_id',
                            
  'env'           => 'env',
                            
  'merchant_id'   => 'merchant_id',
                            
 ],
                            
                            
]);
                            
echo $response->getBody();
                        
                    
                

                    
                        
**Response: SUCCESS (200 OK)**
                        
{
                        
 "message": {
                        
 "success": [
                        
  "Successfully token is generated"
                        
 ]
                        
},
                        
"data": {
                        
 "token":"eyJpdiI6InpkczhjTjhQdVhUL2lKQ0pSUUx6aUE9P
SIsInZhbHVlIjoiVGVBTVBDTXltbjNZcEIvdEJveGpTSno3TU5NRUtn
VkhCZ1pHTFNCUnZGQ2UxMnYxN202cEE1YVRDTEFsc0ZERExoTjdtL0dTL2x
oU3QzeUJJOExiMUx5T0w1L0llUXhTUkU1cWVLWEdEbEplb0dKNXcwbTNRM0
VxdkUwYzZuNFdtNkhMQ0pRZysyNWkvdzBxSlBoSVBSOGFTekNnR2RXNHVtc
G9lMGZOTmNCcm1hR3c5Sk9KTnB4Y3ltZDl6cm90MThrR21Ca3B1azc3bXRi
Q0J6SW96UVo1elNkU1ZqeE05bTcwWGp1MEUxWlJFdnNWTmpSbnVpeW92b2U
4dXZkUGgyb1VmK0luaGdyaFlsVTZlcVpVRnZlTG1DeFF6Ykk2T2h6Z3Jzbn
IyNHpNdHowSE5JdDR0Y0pZT20zUm1XYW8iLCJtYWMiOiJlY2M4NGE1OGUzYz
kzYzk0YzljNmVmNjE0YWI0ZDIwOGI3NDQ2YWEyY2ZhNzc0NzE4ZmY1ZmYyMz

                        IyZmQzNDY1IiwidGFnIjoiIn0=",
                        
},
                        
"type": "success"
                        
}
                    
                

                    
                        
**Response: ERROR (400 FAILED)**
                        
{
                        
 "message": {
                        
 "error": [
                        
  "Invalid credentials."
                        
 ]
                        
},
                        
"data": null,
                        
"type": "error"
                        
}