CODEWITHSUNDEEP
phpwordpressapiwoocommerce
Fahad
Fahad

Reputation: 127

Custom API endpoint for WooCommerce Add to cart

I have been trying to build a custom api endpoint to add to cart. My local is working fine and adding the product to the cart easily. I made the code live and getting an error like:

Call to a member function generate_cart_id() on null

Here is the code I have written.

add_action('rest_api_init', function () {
register_rest_route( 'product/v1', 'add_to_cart',array(
                'methods'  => 'POST',
                'callback' => 'wplms_add_to_cart'
      ));
});

function wplms_add_to_cart($request) {

    $product_id = $request['product_id'];
    $product_cart_id = WC()->cart->generate_cart_id($product_id);

    if( ! WC()->cart->find_product_in_cart( $product_cart_id ) ){
        // The product ID is NOT in the cart, let's add it then!
        $added = $cart->add_to_cart( $product_id);
    }


    $response = new WP_REST_Response(var_dump($added));
    $response->set_status(200);

    return $response;
}

Upvotes: 1

Views: 1954

Answers (1)

Fahad
Fahad

Reputation: 127

The way I resolved it.

if ( defined( 'WC_ABSPATH' ) ) {
    // WC 3.6+ - Cart and other frontend functions are not included for REST requests.
    include_once WC_ABSPATH . 'includes/wc-cart-functions.php';
    include_once WC_ABSPATH . 'includes/wc-notice-functions.php';
            include_once WC_ABSPATH . 'includes/wc-template-hooks.php';
}

if ( null === WC()->session ) {
    $session_class = apply_filters( 'woocommerce_session_handler', 'WC_Session_Handler' );

    WC()->session = new $session_class();
    WC()->session->init();
}

if ( null === WC()->customer ) {
    WC()->customer = new WC_Customer( get_current_user_id(), true );
}

if ( null === WC()->cart ) {
    WC()->cart = new WC_Cart();

    // We need to force a refresh of the cart contents from session here (cart contents are normally refreshed on wp_loaded, which has already happened by this point).
    $cart  = WC()->cart->get_cart();
    $product_cart_id = WC()->cart->generate_cart_id($request['product_id']);
    $cart_item_key = WC()->cart->find_product_in_cart($product_cart_id);
    if (!$cart_item_key) {
        $add = WC()->cart->add_to_cart( $product_id = $request['product_id'], $quantity = 1, $variation_id = 0, $variation = array(), $cart_item_data = array() );
    } else {
        $add = false;
    }

}

Upvotes: 2

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