How to serve images and files privatly in Laravel 5.7 (Medium)

oneRouteForEachController.php

<?php
public function getCompaniesLogo($file) {
       // know you can have a mapping so you dont keep the sme names as in local (you can not precsise the same structor as the storage, you can do anything)
       // any permission handling or anything else
       $filePath = config('fs.gallery').DIRECTORY_SEPARATOR.$file; // here in place of just using 'gallery', i'm setting it in a config file
       // here i'm getting only the path from the root (this way we can change the root later) / also we can change the structor on the store itself, change in one place config.fs.
      // $filePath = Storage::url($filePath); <== this doesn't work don't use
      // check for existance
       if (!Storage::disk('local')->exists($file)){ // as mentionned precise relatively to storage disk root (this one work well not like Storage:url()
       abort('404');
       } 
       // if there is parameters [you can change the files, depending on them. ex serving different content to different regions, or to mobile and desktop …etc] // repetitive things can be handled through helpers [make helpers]
       return response()->file(storage_path('app'.DIRECTORY_SEPARATOR.($file))); // the response()->file() will add the necessary headers in our place
 }