In stock woocommerce products list API endpoint

n-stock-products

add_action('rest_api_init', function () {
    register_rest_route('custom/v1', '/in-stock-products', array(
        'methods' => 'GET',
        'callback' => 'get_in_stock_products',
        'permission_callback' => '__return_true',
    ));
});

function get_in_stock_products() {
    $args = [
        'post_type' => 'product',
        'posts_per_page' => 50,
        'meta_query' => [
            [
                'key' => '_stock_status',
                'value' => 'instock',
            ],
        ],
    ];

    $query = new WP_Query($args);
    $products = [];

    foreach ($query->posts as $post) {
        $product = wc_get_product($post->ID);
        $products[] = [
            'id' => $product->get_id(),
            'name' => $product->get_name(),
            'price' => $product->get_price(),
            'url' => get_permalink($product->get_id()),
            'stock_status' => $product->get_stock_status(),
        ];
    }

    return rest_ensure_response($products);
}