rules_api_post-8.x-1.x-dev/rules_api_post.module

<?php

/**
 * @file
 * Rules API POST Module for Drupal Sites.
 */

 use Drupal\Core\Routing\RouteMatchInterface;
/**
 * Implements hook_help().
 */
function rulesApiPostHelp($route_name, RouteMatchInterface $route_match) {
  switch ($route_name) {
    // Main module help for the rules_api_post module.
    case 'help.page.rules_api_post':
      $output = '<h2>' . t('About') . '</h2>';
      $output .= '<p>' . t('This helper module adds a Rules action plugin for POSTing content to a REST API. It\'s a working example of how to replicate content between one or more Drupal sites.') . '</p>';
      $output .= '<p>';
      $output .= t('Visit the <a href=":project_link">Project page</a> on Drupal.org for more information.', [
        ':project_link' => 'https://www.drupal.org/project/rules_api_post',
      ]);
      $output .= '</p>';

      return $output;
  }
}