(String) The function name of the PHP function you want to call.
(String) The arguments you want to send over within the function call. Use the variable name as the key and the value for the variable value. JSON and serialized data will be converted to its original format. To avoid it, please wrap the value in double quotes.
(String) Register a custom WordPress hook callback. The value will be called as followed: do_action( $yourdefinedaction, $action_return_data, $request_data )
More available WordPress endpoints
To learn more about a specific endpoint, simply click on it.