evoratecapi.php

<?php
/*
Plugin Name: evoratec plugin api slimframework
Plugin URI:
Description: Plugin for Api whith slim framework
Author: Evora sistemas de información,s.l.
Version:
Author URI: http://www.evoratec.com
*/

require 'vendor/autoload.php';

class EvoratecApi {

    static $plugin_path;
    static $nombreApi ;

    public function __construct(){
        $this->nombreApi = 'evoratecapi';
        $this->plugin_path = plugin_dir_path(__FILE__);
        register_activation_hook( __FILE__, array( $this, 'flush' ) );
        add_action( 'init', array( $this, 'add_endpoints' ) );
        add_action( 'parse_request', array( $this, 'parse_request') );
    }

    public function flush(){
        $this->init();
        flush_rewrite_rules();
    }
    public function add_endpoints() {
        global $wp_rewrite;
        add_rewrite_endpoint($this->nombreApi, EP_ROOT | EP_PAGES );
        $wp_rewrite->flush_rules();
    }
    public function parse_request( &$wp ){
        if ( array_key_exists( $this->nombreApi, $wp->query_vars ) ){
            // include $this->plugin_path . 'api.php'; En el caso de querer sacar la api fuera
            $app = new \Slim\Slim();
            $app->get("/$this->nombreApi/hola", function () {
                echo "Hola";
            });
            $app->run();
            die();
        }
        return;
    }
}
$evoratecApi = new EvoratecApi();