Fix WordPress REST base to use real URL

README.md

WordPress REST base on Site URL

If you change the site URL option to use a different one from your installed directory, the /wp-json/ is base changes too. This plugin fixes that.

Usage

1. Download a ZIP of this plugin
2. Upload to WordPress

fix-rest-url.php

<?php
/**
 * Plugin Name:     Fix REST URL on Site URL
 * Plugin URI:      https://gist.github.com/lightningspirit/61c8810778a3a88192b3ca5060dc3efb
 * Description:     Fix WordPress REST base to use real URL
 * Author:          Move Your Digital, Inc.
 * Author URI:      https://moveyourdigital.com
 * Version:         0.1.0
 *
 * @package         Fix_Rest_Url_Site_Url
 */

/*
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
*/

add_filter('home_url', function ($url, $path, $origin_scheme, $blog_id) {
  if ($origin_scheme == "rest") {
    return get_site_url($blog_id, $path);
  } elseif ($path && strpos('wp-json', $path)  !== false) {
    return get_site_url($blog_id, $path);
  } else {
    return $url;
  }
}, 10, 4);