headless.module

<?php

/**
 * @file
 * Contains headless.module.
 */

use Drupal\Core\Routing\RouteMatchInterface;

/**
 * Implements hook_help().
 */
function headless_help($route_name, RouteMatchInterface $route_match) {
  switch ($route_name) {

    // Main module help for the headless module.
    case 'help.page.headless':
      $output = '';
      $output .= '<h3>' . t('About') . '</h3>';
      $output .= '<p>' . t('Exposes user operations as routes that support the JSON exchange format.') . '</p>';
      return $output;

    default:
  }
}

/**
 * Implements hook_headless_response_alter().
 */
function headless_headless_response_alter(&$data) {

  // Support deprecated hook to be removed in future release.
  \Drupal::moduleHandler()->invokeAll('headless_data_alter', [&$data]);
}