Drupal 8’s way of managing configuration forms is entirely different from Drupal 7. Assuming that you have a custom module, we shall see how to create simple configuration form.

Coder is a Drupal module to check for coding standard issues in custom modules and themes. It can check any files for coding standard issues according to Drupal specifications. This method uses latest composer and drush to install latest coder. Feel free to skip the following to corresponding parts you need.

• Install composer

  Check if composer is installed,

  which composer

  If this is empty, proceed with below command. Else skip.