class DbLogResource

class DbLogResource extends ResourceBase {
  
  /**
   * Responds to GET requests.
   *
   * Returns a watchdog log entry for the specified ID.
   *
   * @param int $id
   *   The ID of the watchdog log entry.
   *
   * @return \Drupal\rest\ResourceResponse
   *   The response containing the log entry.
   *
   * @throws \Symfony\Component\HttpKernel\Exception\NotFoundHttpException
   *   Thrown when the log entry was not found.
   * @throws \Symfony\Component\HttpKernel\Exception\BadRequestHttpException
   *   Thrown when no log entry was provided.
   */
  public function get($id = NULL) {
    if ($id) {
      $record = Database::getConnection()->select('watchdog', 'w')
        ->fields('w')
        ->condition('wid', $id)
        ->execute()
        ->fetchAssoc();
      if (!empty($record)) {
        return new ResourceResponse($record);
      }
      throw new NotFoundHttpException("Log entry with ID '{$id}' was not found");
    }
    throw new BadRequestHttpException('No log entry ID was provided');
  }

}