import { Autumn } from 'autumn-js';

const autumn = new Autumn();

const { data, error } = await autumn.customers.billingPortal('customer_id');

import asyncio
import os
from autumn import Autumn

client = Autumn(
    secret_key=os.environ.get("AUTUMN_SECRET_KEY"),  # This is the default and can be omitted
)
response = autumn.customers.billing_portal(
    customer_id="customer_id",
)
print(response.customer_id)

curl --request POST \
  --url https://api.useautumn.com/v1/customers/{customer_id}/billing_portal \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "return_url": "<string>"
}
'

{
  "customer_id": "<string>",
  "url": "<string>"
}