WooCommerce Rest API Issue on local server

Question

I am working on a plugin to interact with a WooCommerce store and the problem is that the plugin and the store are on the same WordPress installation (same server and domain) and the WooCommerce Rest API didn't work. I have already asked this question:

WooCommerce API Issue with Authentication Consumer Key is missing

My question: Is there a way to interact with WooCommerce directly without the Rest API, specially if my plugin and WooCommerce store are on the same server?

Answer 1

I finally found the solution, in order to access the WooCommerce API directly without using the REST API I first found great code on this link:

https://wordpress.org/support/topic/programming-question-memory-leak-when-accessing-products

And using this great link documentation

https://web.archive.org/web/20160616131215/http://woocommerce.wp-a2z.org/oik_file/includesapiv2class-wc-api-orders-php/

Then by navigating in WooCommerce Source code in the plugins folder under plugins/woocommerce/includes/api

I succeeded to access WooCommerce, here is a simple example to get products of a category and using page number:

//you need to sign in with wordpress admin account to access WooCommerce data
function setupWooCommerce() {
    $wooCommercePath = realpath(WP_PLUGIN_DIR . '/woocommerce/woocommerce.php');
    require_once $wooCommercePath;

    WC()->api->includes();
    WC()->api->register_resources(new WC_API_Server( '/' ));

    $credentials = [
        'user_login' => 'username',
        'user_password' => 'password'
    ];
    $user = wp_signon($credentials, false);
    wp_set_current_user($user->ID);
}

function getProducts($category, $pageNumber) {
    setupWooCommerce();
    $products = NULL;
    try {
        $api = WC()->api->WC_API_Products;
        $products = $api->get_products(null, null, array('category' => $category), $pageNumber);
    } catch (Exception $e) {
        error_log("Caught $e");
    }
    return $products;
}