问Stripe url不取消付款，因此stripe不发送取消支付意图。

EN

// This will share the stripe publickey with the frontend
const webhook = async (req, res) => {
  // Signature verification
  const playload = req.body;
  const sig = req.headers["stripe-signature"];
  const endpointSecret = process.env.STRIPE_WEBHOOK_SECRET;

  let event;

  try {
    // Checking if the response is actually from stripe
    event = stripe.webhooks.constructEvent(playload, sig, endpointSecret);
  } catch (error) {
    console.log(error.message);
    res.status(400).json({ success: false });
    return;
  }

  // Getting the ad id
  const adID = event.data.object.metadata.id;
  const userEmail = event.data.object.metadata.email;

  // Checking if the payment did faile
  if (
    event.type === "payment_intent.canceled" ||
    event.type === "charge.failed" ||
    event.type === "charge.expired"
  ) {
    const paymentIntent = event.data.object;
    console.log(`PaymentIntent ${paymentIntent.status}`);

    // Sending the deleting request
    await axios.delete(`${process.env.SERVER_URL}/api/v1/single-ad`, {
      data: { id: adID, email: userEmail },
    });

    return res.status(200).json({ message: "Ad is successfully deleted" });
  }