# Initializing slim framework inside a wordpress plugin

**URL:** <https://discourse.slimframework.com/t/initializing-slim-framework-inside-a-wordpress-plugin/5916>\
**Category:** Integrations\
**Created:** [June 9, 2024, 12:06pm UTC](https://discourse.slimframework.com/t/initializing-slim-framework-inside-a-wordpress-plugin/5916 "2024-06-09T12:06:32Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![AhmadKarim](https://yyz2.discourse-cdn.com/flex030/user_avatar/discourse.slimframework.com/ahmadkarim/32/245_2.png) [@AhmadKarim](https://discourse.slimframework.com/u/AhmadKarim)\
**Post date:** [June 9, 2024, 12:06pm UTC](https://discourse.slimframework.com/t/initializing-slim-framework-inside-a-wordpress-plugin/5916/1 "2024-06-09T12:06:32Z")

</div>

Hi everyone,

I am trying to initialize the slim framework inside a WordPress plugin, but I keep getting `Slim\Exception\HttpNotFoundException (404) Not found`. error when I visit the `/slim-endpoint/` url.

(I have confirmed and the rewrite\_rules contains the correct rewrites)

Can anyone look at this code and suggest anything?

`init-slim.php`

```auto
<?php

defined('WPINC') || die;

use Psr\Http\Message\ResponseInterface as Response;
use Psr\Http\Message\ServerRequestInterface as Request;
use Slim\Factory\AppFactory;

function wpsf_init_slim() {

  // Create Slim app instance

  $app = AppFactory::create();

  // Include route files
  $routes = __DIR__. '/routes/*.route.php';
  $routes = glob($routes);
  foreach ($routes as $route) {
    include_once $route;
  }

  // Handle the current request
  $app->run();
}

function wpsf_add_rewrite_rules() {
  add_rewrite_rule('^slim-endpoint/?$', 'index.php?slim_route=slim-endpoint', 'top');
  add_rewrite_rule('^another-endpoint/?$', 'index.php?slim_route=another-endpoint', 'top');
}

function wpsf_flush_rewrite_rules() {
  wpsf_add_rewrite_rules();
  flush_rewrite_rules();
}

function wpsf_query_vars($vars) {
  $vars[] = 'slim_route';
  return $vars;
}

function wpsf_template_redirect() {
  global $wp_query;

  // Debugging output
  if (isset($wp_query->query_vars['slim_route'])) {
    error_log('Slim route detected in query_vars: ' . $wp_query->query_vars['slim_route']);
    wpsf_init_slim();
    exit; // Stop further execution if Slim route matched
  } else {
    error_log('Slim route not found in query_vars');
  }
}

add_filter('query_vars', 'wpsf_query_vars');
add_action('template_redirect', 'wpsf_template_redirect');
add_action('init', 'wpsf_add_rewrite_rules');
register_activation_hook( __FILE__ , 'wpsf_flush_rewrite_rules');

```

`./routes/test.route.php`

```auto
<?php

defined('WPINC') || die;

// Define routes
$app->get('/slim-endpoint', function (Request $request, Response $response, $args) {
  $response->getBody()->write("Hello from Slim!");
  return $response;
});

$app->get('/another-endpoint', function (Request $request, Response $response, $args) {
  $response->getBody()->write("This is another endpoint.");
  return $response;
});

```

`rewrite_rules` option value in database

```auto
Array
(
  // other values
  [^slim-endpoint/?$] => index.php?slim_route=slim-endpoint
  [^another-endpoint/?$] => index.php?slim_route=another-endpoint
  // other values
)

```