In the ever-evolving world of e-commerce, the ability to integrate and automate various aspects of your online store is essential. WooCommerce, the popular WordPress plugin, provides a robust REST API that allows developers to extend its functionality. However, there are times when you need a custom solution, like retrieving coupons assigned to specific users by passing their registered email. In this article, we’ll walk you through creating a custom WooCommerce REST endpoint to achieve just that.
The Challenge WooCommerce developers face: Accessing User-Specific Coupons
WooCommerce offers a wide range of features, but when it comes to retrieving coupons assigned to users via the REST API, you might find yourself hitting a roadblock. The standard WooCommerce REST API doesn’t provide this functionality out of the box. This is where a custom endpoint becomes invaluable, especially if you want to integrate your WooCommerce store with third-party applications for automation or build a mobile app.
The Solution: A Custom WooCommerce REST Endpoint
To access coupons by email, we’ll create a custom WooCommerce REST endpoint. This endpoint will accept a user’s registered email as a parameter and return the relevant coupons. Let’s dive into the code and see how it’s done.
function get_coupons_by_email($data){
global $wpdb;
$customer_email = $data->get_param('customer_email');
$coupons = [];
if(! empty($customer_email)){
$coupons = $wpdb->get_results( $wpdb->prepare("
SELECT p.*, pm.meta_value as coupon_amount
FROM {$wpdb->prefix}posts p
INNER JOIN {$wpdb->prefix}postmeta pm
ON p.ID = pm.post_id
INNER JOIN {$wpdb->prefix}postmeta pm2
ON p.ID = pm2.post_id
WHERE p.post_type = 'shop_coupon'
AND p.post_status = 'publish'
AND pm.meta_key = 'coupon_amount'
AND pm2.meta_key ='customer_email'
AND pm2.meta_value LIKE '%s'
GROUP BY p.post_name
ORDER BY p.post_name DESC
",'%'.$customer_email.'%' ) );
}
return $coupons;
}
add_action( 'rest_api_init', function () {
register_rest_route( 'wc/v3', '/coupons/assignments', array(
'methods' => 'GET',
'callback' => 'get_coupons_by_email',
) );
} );
In this code snippet, we define the get_coupons_by_email
function that handles the request to our custom endpoint. It takes the user’s email as a parameter and queries the WooCommerce database to fetch the assigned coupons. These coupons are returned as a JSON response, making it easy to integrate into third-party applications or mobile apps.
How to Use the Custom Endpoint
Now that we have our custom WooCommerce REST endpoint in place, here’s how you can use it:
- Endpoint URL: To retrieve coupons for a specific user, make a GET request to the following endpoint:
/wp-json/wc/v3/coupons/[email protected]
Replace [email protected]
with the user’s registered email.
- Response: The endpoint will return a JSON response containing information about the coupons assigned to the user, including coupon codes and their respective amounts.
Creating a custom WooCommerce REST endpoint to retrieve coupons by email is a powerful tool for WooCommerce store owners and developers. It enables seamless integration with third-party applications and mobile apps, enhancing automation and user experience. By following the code provided in this article, you can extend the capabilities of your WooCommerce store and provide a more customised shopping experience for your customers.