update_btn.addEventListener("click", () => {
            let http_header_update = {
                method: "PATCH",
                body: JSON.stringify({
                    product: product_input.value,
                    count: count_input.value,
                    price: price_input.value})
            }

            fetch(update_url, http_header_update)
                .then(() => {
                    load_products()
                })
        })