Laravel verraest/revolut-php console implementation

RevolutGet.php

<?php

namespace App\Console\Commands;

// This is an example Laravel Command
// Just scaffolding for use of:
// https://github.com/sverraest/revolut-php

//include RevolutPHP with composer
//Create this command.
//Run it and follow instructions where prompted

use Illuminate\Console\Command;
use Illuminate\Support\Facades\Storage;
use Carbon\Carbon;

use RevolutPHP;

class RevolutGet extends Command
{

    protected $signature = 'banking:revolut';
    protected $description = 'Display list of bank accounts in console.';

    //Variables
    private $fileName = 'revToken.txt'; //Filename to store Tokens.
    private $clientId = ''; //Your Client ID from Revolut
    private $redirectUri = 'https://website.com/revolutOauthConsent'; //Your Auth URL to get Key (not implemented)
    private $privateKey = 'file:///home/forge/revolutKeys/privatekey.pem'; //Location of your generated Private Key
    private $isSandbox = true;

    public function __construct()
    {
        parent::__construct();
    }


    public function handle()
    {
      //Establish Client
      $RevolutClient = new \RevolutPHP\Client($this->getToken(), 'sandbox');

      //Get All Accounts
      $accounts = $RevolutClient->accounts->all();

      //Output Accounts
      dd($accounts);
    }

    private function getToken(){
      // -- Create Auth Provider
      $authProvider = new \RevolutPHP\Auth\Provider(['clientId' => $this->clientId,'privateKey' => $this->privateKey,'redirectUri' => $this->redirectUri,'isSandbox' => $this->isSandbox]);

      //-- If no file generate NEW token
      if (Storage::disk('local')->missing($this->fileName)) {
          return $this->generateNewToken($authProvider);
      }

      //-- If TOKEN is older than 85 days, generate NEW token
      if(Carbon::now()->diffInSeconds(Carbon::createFromTimestamp(Storage::lastModified($this->fileName))) > (86400*85)){
        return $this->generateNewToken($authProvider);
      }

      //-- Use an Old Token
      return $this->generateOldToken($authProvider, Storage::get($this->fileName));
    }



    private function generateNewToken($authProvider){

      //Generate re-authentication url
      $this->info('Go to:'."\n"."\n".$authProvider->getAuthorizationUrl()."\n"."\n");
      sleep(2);
      $this->info('Copy the Auth Code from the URL.');

      //Ask for Auth Code
      $authCode = $this->ask('What is the Auth Code?');

      //Save new access token
      $accessToken = $authProvider->getAccessToken('authorization_code', ['code' => $authCode]);
      Storage::disk('local')->put($this->fileName, $accessToken->getRefreshToken());

      return $accessToken;

    }

    private function generateOldToken($authProvider, $refreshToken){
      return $authProvider->getAccessToken('refresh_token', ['refresh_token' => $refreshToken]);
    }

}