Let’s dive into some hands-on tests and simulations! We’ll cover:

1. Creating custom API endpoints in WordPress for MemberPress.
2. Testing OAuth 2.0 workflows for secure API authentication.
3. Building advanced payment automations using Stripe.

These examples will help you extend your site’s functionality, secure your API, and automate complex payment flows.

MemberPress relies on the WordPress REST API. You can extend the default capabilities by adding custom API endpoints to handle specific workflows, such as retrieving member statistics, accessing premium content, or modifying user data.

Example: Create a Custom API Endpoint to Retrieve Active Members

Steps:

1. Create a Custom Plugin:
   • In your WordPress installation, create a new plugin to add custom API functionality.
   • Go to wp-content/plugins/, and create a folder called custom-memberpress-api. Inside that folder, create a file named custom-memberpress-api.php.
2. Add the Following Code: <?php /* Plugin Name: Custom MemberPress API Description: Adds custom API endpoints to retrieve active members. */ // Register the custom API endpoint on plugin activation add_action('rest_api_init', function() { register_rest_route('custom_mp/v1', '/active-members', array( 'methods' => 'GET', 'callback' => 'get_active_members', 'permission_callback' => '__return_true', )); }); // Define the callback function that returns active members function get_active_members() { global $wpdb; $active_members = $wpdb->get_results("SELECT * FROM {$wpdb->prefix}members WHERE status = 'active'"); return new WP_REST_Response($active_members, 200); }
   • This code defines a new REST API route: /wp-json/custom_mp/v1/active-members.
   • The get_active_members() function retrieves all active members from the WordPress database and returns them in the response.
3. Activate the Plugin:
   • Go to your WordPress admin dashboard, navigate to Plugins, and activate the “Custom MemberPress API” plugin.
4. Test the Custom Endpoint:
   • Use Postman or cURL to test your new endpoint.
   • Send a GET request to: https://your-site.com/wp-json/custom_mp/v1/active-members

Expected Response:

You should receive a JSON response listing all active members:

[
    {
        "id": 1,
        "username": "john_doe",
        "email": "john@example.com",
        "status": "active"
    },
    {
        "id": 2,
        "username": "jane_doe",
        "email": "jane@example.com",
        "status": "active"
    }
]

Customization Ideas:

• Add Parameters: You could extend the endpoint to allow filtering by membership levels or dates, such as retrieving members who joined in the last 30 days.
• Permissions: Replace __return_true with a custom permission callback to ensure only authenticated users can access the endpoint.