Web_Crawler_API/app/Providers/CrawlerServiceProvider.php

<?php

namespace App\Providers;

use App\Services\WebCrawlerService;
use Illuminate\Support\ServiceProvider;

class WebCrawlServiceProvider extends ServiceProvider
{
    public function register()
    {
        $this->app->singleton(WebCrawlerService::class, function () {
            return new WebCrawlerService();
        });
    }
}