RocketChat/Rocket.Chat

import type { IRole } from '@rocket.chat/core-typings';
import { Roles } from '@rocket.chat/models';

export const validateRoleList = async (roleIds: IRole['_id'][]): Promise<boolean> => {
    const options = {
        projection: {
            _id: 1,
        },
    };

    const existingRoleIds = (await Roles.findInIds<Pick<IRole, '_id'>>(roleIds, options).toArray()).map(({ _id }) => _id);
    return !roleIds.find((_id) => !existingRoleIds.includes(_id));
};