desert-dionysus/inertia-wordpress

The modernized WordPress adapter for Inertia.js v2.0
1
wordpress vue plugin react inertia.js
Install
composer require desert-dionysus/inertia-wordpress
Latest Version:v1.0.2
PHP:>=8.2
License:MIT
Last Updated:Jan 18, 2026
Links: GitHub  ·  Packagist
Maintainer: DesertDionysus

Inertia.js WordPress Adapter (Modernized Fork)

A modernized Inertia.js server-side adapter for WordPress, aligned with Inertia.js v2.0+ protocol.

Note: This is a fork of the excellent work by Andrew Rhyand (BoxyBird). While the core philosophy remains the same, this version has been modernized for PHP 8.2+ and adds support for the latest Inertia.js features like Deferred Props, Merge Props, and more.

Installation

Install the package via composer:

composer require desert-dionysus/inertia-wordpress

Acknowledgements & Resources

This project is a fork of boxybird/inertia-wordpress. We highly recommend checking out Andrew's original work and examples:

Root Template Example

Location: /wp-content/themes/your-theme/app.php (or layout.php)

<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <?php wp_head(); ?>
    </head>
    <body>
        <?php bb_inject_inertia(); ?>
        <?php wp_footer(); ?>
    </body>
</html>

The inertia() Helper

This fork introduces a global inertia() helper function that provides a fluent API similar to Laravel's adapter.

// Render a component
return inertia('Index', ['posts' => $posts]);

// Chainable methods
return inertia()
    ->version('1.0.0')
    ->share('key', 'value')
    ->render('Index', $props);

Core Features

Inertia Responses

use DesertDionysus\Inertia\Inertia;

// Using the Class
return Inertia::render('Posts/Index', [
    'posts' => $posts,
]);

// Or using the helper
return inertia('Posts/Index', [
    'posts' => $posts,
]);

Shared Data

Shared data is automatically included in every Inertia response.

inertia()->share('site_name', get_bloginfo('name'));

// Shared Closures are only executed if they are included in the response
inertia()->share('auth', function () {
    return is_user_logged_in() ? wp_get_current_user() : null;
});

Always Props (v2.0)

Props wrapped in always() will be included in every response, even during partial reloads where they weren't specifically requested.

return inertia('Profile', [
    'user' => $user,
    'social_links' => Inertia::always($links),
]);

Deferred Props (v2.0)

Deferred props allow you to load heavy data asynchronously after the initial page load.

return inertia('Dashboard', [
    'stats' => Inertia::defer(fn() => get_heavy_stats()),
    'logs'  => Inertia::defer(fn() => get_logs(), 'activity-group'),
]);

Merge Props (v2.0)

Useful for infinite scrolling or pagination.

return inertia('Blog', [
    'posts' => Inertia::merge(fn() => get_next_page_posts()),
]);

External Redirects

Handles full-page redirects, even during Inertia AJAX requests.

return Inertia::location('https://external-site.com');

WordPress Integration

Automatic Nonce Injection

This adapter automatically includes a wp_rest nonce in every response under the nonce prop, simplifying CSRF protection for your API calls.

Flash Messages & Validation Errors

Easily pass flash messages or validation errors that will be automatically shared via the flash and errors props.

// In your "Controller"
inertia()->flash('success', 'Post updated!');
inertia()->withErrors(['title' => 'Title is required']);

return Inertia::location(get_permalink($post_id));

Asset Versioning

// Automatically version from Vite manifest
Inertia::versionFromVite(get_stylesheet_directory() . '/dist/manifest.json');

// Or from any specific file
Inertia::versionFromFile(get_stylesheet_directory() . '/style.css');

// Or manually
Inertia::version('v1.2.3');

Configuration

Root Template File Override

add_action('init', function () {
    Inertia::setRootView('layout.php');
});

Inertia Docs