54 lines
1.3 KiB
Plaintext
54 lines
1.3 KiB
Plaintext
---
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title: "Attach"
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openapi: "openapi POST /v1/billing.attach"
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---
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import { DynamicParamField } from "/components/dynamic-param-field.jsx";
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import { DynamicResponseField } from "/components/dynamic-response-field.jsx";
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import { DynamicResponseExample } from "/components/dynamic-response-example.jsx";
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<Note>
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The attach endpoint subscribes a customer to a plan. It handles new subscriptions, upgrades, and downgrades automatically. For modifying an existing subscription (like changing quantities or canceling), use [update](/api-reference/billing/billingUpdate) instead.
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</Note>
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### Common Use Cases
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<CodeGroup>
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```typescript Subscribe to a plan
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const response = await autumn.billing.attach({
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customerId: "cus_123",
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planId: "pro_plan"
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});
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if (response.paymentUrl) {
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// Redirect customer to checkout
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window.location.href = response.paymentUrl;
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}
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```
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```typescript Custom pricing
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const response = await autumn.billing.attach({
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customerId: "cus_123",
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planId: "enterprise_plan",
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customize: {
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price: {
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amount: 99900, // $999.00
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interval: "month"
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}
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}
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});
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```
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```typescript Attach plan with prepaid quantities
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const response = await autumn.billing.attach({
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customerId: "cus_123",
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planId: "team_plan",
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featureQuantities: [
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{ featureId: "seats", quantity: 5 }
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]
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});
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```
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</CodeGroup>
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