By mohit_aghera on
Change record status: 
Draft (View all draft change records)
Project: 
Drupal core
Introduced in branch: 
11.4.x
Issue links: 
https://www.drupal.org/node/3555115
Description: 

A new service has been added in FileSystem at Drupal\Core\File\UploadedFilesExtractor
This service provides a central point to extract uploaded files from the request.

Before


  $all_files = \Drupal::request()->files->get('files', []);
  if (empty($all_files[$upload_name])) {
    return FALSE;
  }
  $file_upload = $all_files[$upload_name];

After

  $file_upload = \Drupal::service(UploadedFilesExtractor::class)->extractUploadedFiles($upload_name);

Here $upload_name is the name of file upload field in form.

Impacts: 
Module developers