76 lines
2.2 KiB
Plaintext
76 lines
2.2 KiB
Plaintext
---
|
|
title: "Attach"
|
|
openapi: "openapi POST /v1/billing.attach"
|
|
---
|
|
|
|
import { DynamicParamField } from "/components/dynamic-param-field.jsx";
|
|
import { DynamicResponseField } from "/components/dynamic-response-field.jsx";
|
|
import { DynamicResponseExample } from "/components/dynamic-response-example.jsx";
|
|
|
|
<Note>
|
|
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.
|
|
</Note>
|
|
|
|
### Common Use Cases
|
|
|
|
<CodeGroup>
|
|
|
|
```typescript Subscribe to a plan
|
|
const response = await autumn.billing.attach({
|
|
customerId: "cus_123",
|
|
planId: "pro_plan",
|
|
});
|
|
|
|
if (response.paymentUrl) {
|
|
// Redirect customer to checkout
|
|
window.location.href = response.paymentUrl;
|
|
}
|
|
```
|
|
|
|
```typescript Custom pricing
|
|
const response = await autumn.billing.attach({
|
|
customerId: "cus_123",
|
|
planId: "enterprise_plan",
|
|
customize: {
|
|
price: {
|
|
amount: 999, // $999
|
|
interval: "month",
|
|
},
|
|
},
|
|
});
|
|
```
|
|
|
|
```typescript Attach plan with prepaid quantities
|
|
const response = await autumn.billing.attach({
|
|
customerId: "cus_123",
|
|
planId: "team_plan",
|
|
featureQuantities: [{ featureId: "seats", quantity: 5 }],
|
|
});
|
|
```
|
|
|
|
```typescript Pass metadata to Stripe subscription
|
|
const response = await autumn.billing.attach({
|
|
customerId: "cus_123",
|
|
planId: "pro_plan",
|
|
checkoutSessionParams: {
|
|
subscriptionData: {
|
|
metadata: {
|
|
userId: "internal-user-id",
|
|
source: "upgrade-flow",
|
|
},
|
|
},
|
|
},
|
|
});
|
|
```
|
|
|
|
</CodeGroup>
|
|
|
|
### Stripe checkout session params
|
|
|
|
Use `checkoutSessionParams` to pass additional data to the Stripe checkout session. Values you provide are deep-merged with Autumn's internal parameters, so your fields are preserved alongside ones Autumn sets automatically (like `trial_end` or internal metadata).
|
|
|
|
This is useful for attaching custom metadata to the Stripe subscription created during checkout — for example, linking subscriptions to internal user IDs or tracking the source of the purchase.
|