Help Web.js

window.paypal
  .Buttons({
    style: {
      shape: "rect",
      layout: "vertical",
    },
    async createOrder() {
      try {
        const userid = document.querySelector('script[data-userid]').getAttribute('data-userid'); // Access the data attribute

        const response = await fetch("/api/orders", {
          method: "POST",
          headers: {
            "Content-Type": "application/json",
          },
          body: JSON.stringify({
            cart: [
              {
                id: "1800 Koonies",
                quantity: "1",
                price: "10",
                userid: userid, // Use the userid variable
              },
            ],
          }),
        });

        const orderData = await response.json();

        if (orderData.id) {
          return orderData.id;
        } else {
          const errorDetail = orderData?.details?.[0];
          const errorMessage = errorDetail
            ? `${errorDetail.issue} ${errorDetail.description} (${orderData.debug_id})`
            : JSON.stringify(orderData);

          throw new Error(errorMessage);
        }
      } catch (error) {
        console.error(error);
        resultMessage(`Could not initiate PayPal Checkout...<br><br>${error}`);
      }
    },
    async onApprove(data, actions) {
      try {
        const response = await fetch(`/api/orders/${data.orderID}/capture/${userid}`, {
          method: "POST",
          headers: {
            "Content-Type": "application/json",
          },
        });
# rest of the code...