contabilidad/api/common/Service/PdfHandler.php

<?php
namespace Contabilidad\Common\Service;

use GuzzleHttp\Client;

class PdfHandler {
  protected Client $client;
  protected string $folder;
  protected string $url;
  public function __construct(Client $client, string $pdf_folder, string $url) {
    $this->client = $client;
    $this->folder = $pdf_folder;
    $this->url = $url;
  }

  public function load(): ?array {
    $folder = $this->folder;
    $files = new \DirectoryIterator($folder);
    $output = [];
    foreach ($files as $file) {
      if ($file->isDir() or $file->getExtension() != 'pdf') {
        continue;
      }
      $output []= ['filename' => $file->getBasename()];
    }
    $response = $this->client->post($this->url, ['json' => ['files' => $output]]);
    $output = json_decode($response->getBody());
    return $output;
  }
}