Make WordPress WP-API faster by not loading theme and plugins

Question

I would like to make requests to the WordPress API much faster. My API is implemented in a plugin (using register_rest_route to register my routes). However, since this is a plu

Answer 1

Sorry for my poor english if this is helpful for you.

Put the plugin folder in root wordpress install.

/public_html/my-plugin/my-plugin.php

and include wordpress main file.

    require dirname( dirname( __FILE__ ) ).'/wp-load.php';

Or in plugin folder directly access

/public_html/wp-content/plugins/my-plugin/my-plugin.php
require_once dirname(__FILE__) . '/../../../wp-load.php';

Before check wp-load.php file included properly and working.

wp-settings.php file load whole core, plugins and themes files. wordpress is load first mu-plugins files (wp-content/mu-plugins/) and provide after action hook muplugins_loaded. Trigger this action to exit whole other files loaded. You can also find which action hook is provide before muplugins_loaded and stop other files and script execution.

if define constant SHORTINIT before include wp-load.php its includes some files provide DB,plugin or basic functions. When we want more load core files and not just want load plugins and theme files in this way found a solution.

// file my-plugin.php
//call before include file wp-load.php
global $wp_filter;
$wp_filter = array( 
    // pass wp hook where to want exit extra wp loaded
    'muplugins_loaded' => array(
     // prority
         1 => array(
            // callback function register
            'wp_extra_loaded_exit' => array( 

              'function' => 'wp_extra_loaded_exit',

              'accepted_args' => 1

              )
         ) 
   )
);



function wp_extra_loaded_exit(){
  exit; 

}
require dirname( dirname( __FILE__ ) ).'/wp-load.php';
// plugin code here.

We check muplugins_loaded hook is define wordpress early you can also find which hook is define before muplugins_loaded then stop this point to after load more wordpress files. -

When you want to test your script open file wp-settings.php and find string muplugins_loaded then echo statement to check.

echo "Wordpress loaded in this point before"; 

do_action( 'muplugins_loaded' );

echo "After this wordpress not loading"; // Output fail bcz we exit