invoiceninja/app/Http/Requests/Credit/BulkCreditRequest.php

<?php
/**
 * Invoice Ninja (https://invoiceninja.com).
 *
 * @link https://github.com/invoiceninja/invoiceninja source repository
 *
 * @copyright Copyright (c) 2022. Invoice Ninja LLC (https://invoiceninja.com)
 *
 * @license https://www.elastic.co/licensing/elastic-license
 */

namespace App\Http\Requests\Credit;

use Illuminate\Foundation\Http\FormRequest;

class BulkCreditRequest extends FormRequest
{
    /**
     * Determine if the user is authorized to make this request.
     *
     * @return bool
     */
    public function authorize() : bool
    {
        return true;
    }

    /**
     * Get the validation rules that apply to the request.
     *
     * @return array
     */
    public function rules()
    {
        return [
                'ids' => 'required|bail|array',
                'action' => 'required|bail|in:archive,restore,delete,email,bulk_download,bulk_print,mark_paid,clone_to_credit,history,mark_sent,download,send_email'
            ];
    }
}