MongodbQueueServiceProvider.php

<?php

namespace Jenssegers\Mongodb;

use Illuminate\Support\Facades\DB;
use Illuminate\Queue\QueueServiceProvider;
use Jenssegers\Mongodb\Queue\Failed\MongoFailedJobProvider;

class MongodbQueueServiceProvider extends QueueServiceProvider
{
    /**
     * @inheritdoc
     */
    protected function registerFailedJobServices()
    {
        // Add compatible queue failer if mongodb is configured.
        if (DB::connection(config('queue.failed.database'))->getDriverName() == 'mongodb') {
            $this->app->singleton('queue.failer', function ($app) {
                return new MongoFailedJobProvider($app['db'], config('queue.failed.database'), config('queue.failed.table'));
            });
        } else {
            parent::registerFailedJobServices();
        }
    }
}