将客户电子邮件传递给 stripe checkout

Question

我正在使用在节点下运行的 Stripe Subscription。

我想创建一个新的结账预填电子邮件地址。所以我尝试在客户端做：

// Setup event handler to create a Checkout Session when button is clicked
document
  .getElementById("basic-plan-btn")
  .addEventListener("click", function(evt) {
    createCheckoutSession(basicPlanId).then(function(data) {
      // Call Stripe.js method to redirect to the new Checkout page
      stripe
        .redirectToCheckout({
              sessionId: data.sessionId,
        })
        .then(handleResult);
    });
  });

这里的电子邮件直接在代码中只是为了测试它。在 createCheckoutSession 中，我添加了 customerEmail：

var createCheckoutSession = function(planId) {
  return fetch("https://example.com:4343/create-checkout-session", {
    method: "POST",
    headers: {
      "Content-Type": "application/json"
    },
    body: JSON.stringify({
      planId: planId,
      customerEmail: 'mario.rossi@gmail.com'
    })
  }).then(function(result) {
    return result.json();
  });
};

然后在服务器上我尝试捕获并转发电子邮件，但我该怎么做呢？

app.post("/create-checkout-session", async (req, res) => {
  const domainURL = process.env.DOMAIN;
  const { planId } = req.body;

  // Create new Checkout Session for the order
  // Other optional params include:
  // [billing_address_collection] - to display billing address details on the page
  // [customer] - if you have an existing Stripe Customer ID
  // [customer_email] - lets you prefill the email input in the form
  // For full details see https://stripe.com/docs/api/checkout/sessions/create
  const session = await stripe.checkout.sessions.create({
    payment_method_types: ["card"],
    subscription_data: { items: [{ plan: planId }] },
    // ?session_id={CHECKOUT_SESSION_ID} means the redirect will have the session ID set as a query param
    success_url: `${domainURL}/success.html?session_id={CHECKOUT_SESSION_ID}`,
    cancel_url: `${domainURL}/canceled.html` 
  });

  res.send({
    sessionId: session.id
  });
});

我还尝试使用以下方法将电子邮件直接传递到服务器：

subscription_data: { items: [{ plan: planId, customer_email: 'a.b@gmail.com' }] },

但这不会填充结帐页面中的字段

我如何解决它？

Answer 1

它不是 的一部分subscription_data；它有自己的字段，名为customer_email.

  const session = await stripe.checkout.sessions.create({
    payment_method_types: ["card"],
    // THIS LINE, HERE:
    customer_email: 'a.b@gmail.com',
    subscription_data: { items: [{ plan: planId }] },
    // ?session_id={CHECKOUT_SESSION_ID} means the redirect will have the session ID set as a query param
    success_url: `${domainURL}/success.html?session_id={CHECKOUT_SESSION_ID}`,
    cancel_url: `${domainURL}/canceled.html` 
  });