Get core update in Rest Api

get-core-update.php

<?php
 function get_wp_core_updates() {
	require_once ABSPATH . '/wp-admin/includes/update.php';
		return get_core_updates();
  	 }
 
  add_action( 'rest_api_init', function () {
            register_rest_route( 'wp/v2', 'wp-version',array(
 
                'methods'  => 'GET',
                'callback' => 'get_wp_core_updates'
 
            ) );
 
     } );