Remove all documents in elasticsearch index

remove_all_documents_in_elasticsearch_index.php

<?php 
$index = 'menu_cat_list_by_type_ru';

$flag = True;

$ids_to_exclude = array();

while ($flag) {
    // Удаляем документы в индексе, пока они не закончатся
    $params = [
        'index' => $index,
        'from' => 0,
        'size' => 1,
    ];

    $params['body']['query']['bool']['must_not']['ids']['values'] = $ids_to_exclude;

    try {
        $response = $this->elasticsearch->client->search($params);

        if (empty($response['hits']['hits'])){
            $flag = False;
        }

        foreach ($response['hits']['hits'] as $document) {
            $this->elasticsearch->client->delete([
                'index' => $index,
                'id' => $document['_id'],
            ]);
            $ids_to_exclude[] = $document['_id'];
        }
    } catch (ClientResponseException $e) {
        if ($e->getCode() === 404) {
            // echo 'the document does not exist';
        }
        $flag = False;
    } 
}
?>