Enabling the REST API in WordPress

The WordPress REST API allows developers to interact with WordPress data (posts, pages, users, etc.) using JSON endpoints. This makes it possible to build apps, integrate external services, or create headless WordPress sites. On ruachost.com, the REST API is enabled by default, but you may need to configure or troubleshoot it.

Why Use the REST API?

Provides programmatic access to WordPress content.
Enables integration with mobile apps or external platforms.
Useful for building headless WordPress sites.
Allows developers to automate tasks and workflows.

Steps to Enable or Verify REST API

1. Check if REST API is Enabled

Visit the following endpoint in your browser:
```
https://yourdomain.com/wp-json/
```
If enabled, you will see a JSON response with site data.

2. Enable REST API via `functions.php` (if disabled)

If your theme or a plugin has disabled the REST API, you can re‑enable it:

// Re-enable WordPress REST API
add_filter('rest_enabled', '__return_true');
add_filter('rest_jsonp_enabled', '__return_true');

Add this snippet to your theme’s functions.php file.

3. Ensure Permalinks Are Configured

Go to Settings → Permalinks.
Select a structure other than “Plain” (e.g., Post name).
Save changes → This ensures REST API endpoints work correctly.

4. Check for Plugin Conflicts

Some security plugins disable the REST API.
Temporarily deactivate plugins to identify conflicts.
Re‑enable REST API in plugin settings if available.

Important Notes

REST API is enabled by default in WordPress 4.7 and later.
If you disable it for security reasons, certain features (like Gutenberg editor) may break.
Always test API endpoints after enabling.
Use authentication (e.g., Application Passwords or OAuth) for secure access.