Stripe Payments & SaaS Billing Systems · 课时

自定义计费周期与计划

学习创建高度定制化的计费周期和计划，以满足独特的业务需求与客户协议。

自定义计费周期与计划 是 CoddyKit 上的免费 Stripe Payments & SaaS Billing Systems 课时。这是第 3 节课，共 4 节。你可以在下方免费阅读本课时的完整内容 — 然后在浏览器中使用内置代码编辑器和全天候 AI 导师进行实践。这是 Stripe Payments & SaaS Billing Systems 学习路径的一部分，你的进度在网页和 CoddyKit 应用中同步。 Stripe Payments & SaaS Billing Systems 课程共包含 4 节课。

本课时的部分内容尚未翻译，以英文显示。

Beyond Monthly: Custom Billing

Not all businesses fit a simple monthly or yearly billing plan. Imagine you need to bill clients quarterly, bi-weekly, or on a specific day of the month.

Stripe's flexible API allows you to define highly customized billing cycles and schedules to match unique business requirements and customer agreements.

Defining Custom Intervals

Stripe uses two key properties to define billing intervals for a Price object:

interval: The unit of time (e.g., day, week, month, year).
interval_count: How many of the interval units.

For example, interval: 'month', interval_count: 3 means 'every three months' (quarterly).

Price with Custom Interval

Here's how you might create a new Price in Stripe that bills every two weeks. Notice the interval and interval_count.

// This is a simplified example.
// In a real application, you'd require and
// initialize the Stripe library.
// const stripe = require('stripe')('sk_test_YOUR_KEY');

async function createCustomPrice() {
  console.log("Simulating Stripe API call to create a Price.");

  const priceData = {
    unit_amount: 1500, // $15.00
    currency: 'usd',
    recurring: {
      interval: 'week',
      interval_count: 2 // Bill every two weeks
    },
    product_data: {
      name: 'Bi-Weekly Service Plan',
    },
    nickname: 'Bi-Weekly Service Plan - $15',
  };

  console.log("Attempting to create Price with:", priceData);
  // await stripe.prices.create(priceData);
  console.log("Price creation simulated successfully.");
}

createCustomPrice();

Introducing Billing Cycle Anchor

Beyond just the interval, sometimes you need to control when the billing cycle starts. This is where the billing_cycle_anchor comes in.

It's a Unix timestamp representing the exact date and time when the subscription's billing cycle should begin.
It's crucial for aligning billing dates across multiple customers or specific business requirements.

Subscription with Future Anchor

Let's say a customer signs up today but wants their first bill to always be on the 1st of the next month. You can set a billing_cycle_anchor when creating the subscription.

Stripe will automatically prorate (if applicable) or delay the first invoice until this date.

// This is a simplified example.
// const stripe = require('stripe')('sk_test_YOUR_KEY');

async function createSubscriptionWithAnchor() {
  console.log("Simulating Stripe API call to create Subscription.");

  const now = new Date();
  const nextMonth = new Date(now.getFullYear(), now.getMonth() + 1, 1); // 1st of next month
  const anchorTimestamp = Math.floor(nextMonth.getTime() / 1000); // Unix timestamp

  const subscriptionData = {
    customer: 'cus_xyz123', // Replace with a real customer ID
    items: [{ price: 'price_abc456' }], // Replace with your price ID
    billing_cycle_anchor: anchorTimestamp,
    // You might also add trial_end here if applicable
  };

  console.log("Attempting to create Subscription with anchor:", subscriptionData);
  // await stripe.subscriptions.create(subscriptionData);
  console.log("Subscription creation simulated successfully.");
}

createSubscriptionWithAnchor();

Aligning Billing Dates

A common use case for billing_cycle_anchor is to ensure all your customers are billed on a specific day of the month (e.g., the 1st or the 15th), regardless of their signup date.

This simplifies financial reconciliation and provides a predictable billing schedule for your operations.

Anchor & Trial Periods

billing_cycle_anchor works well with trial periods. You can set a trial to end, and then have the first billing cycle after the trial begin on a specific anchor date.

This provides a smooth transition from trial to paid, aligned with your custom billing schedule.

Proration with Anchors

When you set or change a billing_cycle_anchor for an existing subscription, Stripe often calculates a proration.

Proration is a partial charge or credit for the period between the change and the new billing cycle start.
Stripe handles this automatically, but it's important to be aware of how it impacts customer invoices.

Modifying Subscription Anchor

You can also update an existing subscription's billing_cycle_anchor. This is useful if a customer requests a change to their billing date or if you need to realign schedules.

Remember to handle potential prorations if you're moving the date mid-cycle.

// This is a simplified example.
// const stripe = require('stripe')('sk_test_YOUR_KEY');

async function updateSubscriptionAnchor() {
  console.log("Simulating Stripe API call to update Subscription.");

  const subscriptionId = 'sub_def789'; // Replace with a real subscription ID
  const newAnchorDate = new Date();
  newAnchorDate.setDate(newAnchorDate.getDate() + 30); // Anchor 30 days from now
  const newAnchorTimestamp = Math.floor(newAnchorDate.getTime() / 1000);

  const updateData = {
    billing_cycle_anchor: newAnchorTimestamp,
    proration_behavior: 'always_invoice', // Or 'create_prorations'
  };

  console.log(`Attempting to update Subscription ${subscriptionId} with anchor:`, updateData);
  // await stripe.subscriptions.update(subscriptionId, updateData);
  console.log("Subscription update simulated successfully.");
}

updateSubscriptionAnchor();

Custom Cycle Check

You want to create a new Stripe Price that bills customers every three months. Which combination of parameters should you use?

Recap: Custom Billing Cycles

In this lesson, we explored how to create highly customized billing cycles and schedules using Stripe:

We learned to define custom intervals for Price objects using interval and interval_count.
We understood the role of billing_cycle_anchor for fixing specific billing dates.
We saw how to set future anchors for new subscriptions and update them for existing ones, while considering prorations.

This flexibility allows you to tailor your billing to diverse business needs.

常见问题解答

「自定义计费周期与计划」课时是免费的吗？

是的 — 「自定义计费周期与计划」的完整文本可在网页上免费阅读。要进行交互式练习（内置代码编辑器和全天候 AI 导师）并解锁 Stripe Payments & SaaS Billing Systems 课程的其余内容，请升级到 CoddyKit PRO。 Stripe Payments & SaaS Billing Systems 课程共包含 4 节课。

「自定义计费周期与计划」这节课中我会学到什么？

学习创建高度定制化的计费周期和计划，以满足独特的业务需求与客户协议。你通过在浏览器中直接运行的动手代码来练习 Stripe Payments & SaaS Billing Systems，全天候 AI 导师会在你学习这节课的过程中回答你的问题。

学习 Stripe Payments & SaaS Billing Systems 需要有经验吗？

无需任何先前经验。CoddyKit 上的 Stripe Payments & SaaS Billing Systems 课程适合初学者到高级学习者，你可以从这里开始或从头开始，按照自己的节奏学习。这是第 3 节课，共 4 节。

「自定义计费周期与计划」课时需要多长时间？

大多数 CoddyKit 课程大约需要 5–10 分钟。每节课都很精短且互动，所以你能稳步进步，并在网页和应用中从离开的地方继续。

我能在这节 Stripe Payments & SaaS Billing Systems 课中编写并运行代码吗？

能。每节 Stripe Payments & SaaS Billing Systems 课都包含内置代码编辑器，你可以在浏览器中直接编写并运行真实代码，并获得即时 AI 反馈 — 无需本地设置。

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