import Hercules from '@usehercules/sdk';

const client = new Hercules({
  apiVersion: '2025-12-09',
  apiKey: process.env['HERCULES_API_KEY'], // This is the default and can be omitted
});

const response = await client.beta.subscriptions.cancel({
  customer_id: 'customer_id',
  subscription_id: 'subscription_id',
});

console.log(response.id);

{
  "id": "<string>",
  "status": "<string>",
  "cancellation_timing": "immediate",
  "canceled_at": "2023-11-07T05:31:56Z"
}