title: Service layer in laravel 5.7
body: <p>I have gone through the Laravel documentation and found that every request follows the <em>Middle layer -> Controller layer -> Resource Layer</em> flow.
  But for my project I have a huge business processing logic which needs to be written. So, I am looking for a service layer option where execution control will be passed from Controller and then service layer will do the processing logic along with database fetch. But I didn't find anything linked with service layer part in artisan.</p>
  
  <p>So, can you suggest me how can I implement a service layer in my project?</p>