xero-8.x-2.x-dev/examples/src/Controller/ExampleController.php

<?php

namespace Drupal\xero_example\Controller;

use Drupal\Component\Plugin\Exception\PluginException;
use Drupal\Core\DependencyInjection\ContainerInjectionInterface;
use Drupal\examples\Utility\DescriptionTemplateTrait;
use Drupal\xero\XeroQuery;
use Symfony\Component\DependencyInjection\ContainerInterface;

/**
 * Example of fetching data from the Xero API.
 *
 * @ingroup xero_example
 */
class ExampleController implements ContainerInjectionInterface {

  use DescriptionTemplateTrait;

  /**
   * The Xero query.
   *
   * @var \Drupal\xero\XeroQuery
   */
  protected $query;

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container) {
    return new static($container->get('xero.query'));
  }

  /**
   * Initialization method.
   *
   * @param \Drupal\xero\XeroQuery $query
   *   The xero query to make requests with.
   */
  public function __construct(XeroQuery $query) {
    $this->query = $query;
  }

  /**
   * {@inheritdoc}
   */
  public function getModuleName() {
    return 'xero_example';
  }

  /**
   * Shows a list of Xero accounts.
   *
   * @return array
   *   A render array.
   *
   * @throws \Throwable
   */
  public function index() {
    $render = [
      '#type' => 'container',
    ];

    try {
      /** @var \Drupal\Core\TypedData\ListInterface|bool $accounts */
      $accounts = $this->query
        ->setType('xero_account')
        ->setMethod('get')
        ->execute();

      $render['accounts'] = [];
      if ($accounts) {
        /** @var \Drupal\xero\Plugin\DataType\Account $account */
        foreach ($accounts as $account) {
          $render['accounts'][] = $account->view();
        }
      }
      else {
        $render['error'] = [
          '#markup' => 'Something went wrong with this request. Did you configure your Xero private application consumer key and secret and authorize the application?',
        ];
      }
    }
    catch (PluginException $e) {
      $render['error'] = [
        '#markup' => $e->getMessage(),
      ];
    }

    return $render;
  }

}