option_key, $key); add_action('admin_notices', function() { echo '

New secret key generated!

'; }); } } public function register_routes() { register_rest_route('cat-sync/v1', '/export', [ 'methods' => 'GET', 'callback' => [$this, 'export_data'], 'permission_callback' => [$this, 'verify_key'], ]); } public function verify_key($request) { $stored_key = get_option($this->option_key, ''); $provided = $request->get_header('X-Cat-Sync-Key') ?: $request->get_param('key'); return !empty($stored_key) && hash_equals($stored_key, (string) $provided); } public function export_data() { $categories = get_terms([ 'taxonomy' => 'category', 'hide_empty' => false, ]); $cat_data = []; foreach ($categories as $cat) { $cat_data[] = [ 'term_id' => $cat->term_id, 'name' => $cat->name, 'slug' => $cat->slug, 'description' => $cat->description, 'count' => $cat->count, ]; } // Get all posts with their categories $posts = get_posts([ 'numberposts' => -1, 'post_status' => ['publish', 'draft', 'private'], 'fields' => 'ids', ]); $post_category_map = []; foreach ($posts as $post_id) { $post_cats = wp_get_post_categories($post_id, ['fields' => 'slugs']); if (!empty($post_cats)) { $post_title = get_the_title($post_id); $post_slug = get_post_field('post_name', $post_id); $post_category_map[] = [ 'post_id' => $post_id, 'post_title' => $post_title, 'post_slug' => $post_slug, 'categories' => $post_cats, ]; } } return rest_ensure_response([ 'success' => true, 'site_url' => get_site_url(), 'exported_at' => current_time('mysql'), 'categories' => $cat_data, 'post_category_map' => $post_category_map, 'totals' => [ 'categories' => count($cat_data), 'posts' => count($post_category_map), ], ]); } public function render_page() { $secret_key = get_option($this->option_key, ''); $api_url = get_rest_url(null, 'cat-sync/v1/export'); ?>
Old Site

Category Sync — Exporter

Exposes your categories via a secure API for the new site to consume

📊 Current Stats

'category', 'hide_empty' => false]); $all_posts = wp_count_posts(); ?>
Total Categories
Published Posts publish ?>
API Status

🔑 Secret Key

No key generated yet. Generate one below.


🌐 API Endpoint (copy to new site)



📋 How to Use

  • Generate a secret key above — copy it
  • Copy the API Endpoint URL above
  • Go to your new site → install the Category Sync Importer plugin
  • Paste the URL + Key into the importer and click Run Sync
  • All done! Posts will be auto-reassigned to correct categories 🎉