Add customer in Mailerlight group on order completion

After the order is set to completed, we trigger the mailerlight api to add the customer in a group

          

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          add_action('woocommerce_order_status_completed', 'add_customer_to_mailerlite_group');

function add_customer_to_mailerlite_group($order_id) {
    $order = wc_get_order($order_id);
    $email = $order->get_billing_email();
    $name = $order->get_billing_first_name() . ' ' . $order->get_billing_last_name();


    $api_key = 'API_KEY';
    $group_id = 'GROUP_ID';

    $data = [
        'email' => $email,
        'name' => $name,
    ];

    $response = wp_remote_post("https://api.mailerlite.com/api/v2/groups/{$group_id}/subscribers", [
        'headers' => [
            'Content-Type' => 'application/json',
            'X-MailerLite-ApiKey' => $api_key,
        ],
        'body' => json_encode($data),
    ]);

    // Optional: Handle the response
if (is_wp_error($response)) {
    error_log('MailerLite API WP_Error: ' . $response->get_error_message());
} else {
    $status_code = wp_remote_retrieve_response_code($response);
    $body = wp_remote_retrieve_body($response);
    error_log("MailerLite API response code: $status_code");
    error_log("MailerLite API response body: $body");
}

}
          

            
              How to use this
            
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