## Confirm a Klarna setup `stripe.confirmKlarnaSetup(clientSecret: string, data?: object)` Use `stripe.confirmKlarnaSetup` in the [Klarna Payments with Setup Intents](https://docs.stripe.com/payments/klarna/set-up-payment.md) flow when the customer submits your setup form. When called, it will confirm the `SetupIntent` with `data` you provide, and it will automatically redirect the customer to authorize the setup. Once authorization is complete, the customer will be redirected back to your specified `return_url`.

> Note that `stripe.confirmKlarnaSetup` may take several seconds to complete.
> During that time, you should disable your form from being resubmitted and show a waiting indicator like a spinner.
> If you receive an error result, you should be sure to show that error to the customer, re-enable the form, and hide the waiting indicator.

- `clientSecret` The [client secret](https://docs.stripe.com/api/setup_intents/object.md#setup_intent_object-client_secret) of the `SetupIntent`.
- `data` Data to be sent with the request. Refer to the [Setup Intents API](https://docs.stripe.com/api/setup_intents/confirm.md) for a full list of parameters.
- `payment_method` The `id` of an existing [PaymentMethod](https://docs.stripe.com/api/payment_methods.md). See the use case sections below for details.
- `return_url` The url your customer will be directed to after they complete authentication.

### with an existing payment method

Data argument properties:

- `payment_method` The `id` of an existing `PaymentMethod`.
- `return_url` The url your customer will be directed to after they complete authentication.

### Example

```title
Confirm with existing payment method
```

### with an attached PaymentMethod

### Example

```title
Confirm with an attached PaymentMethod
```

### with self collected data

Data argument properties:

- `payment_method` Pass an object to confirm with the customer's email and billing country.
- `billing_details` The customer's [billing_details](https://docs.stripe.com/api/payment_methods/create.md#create_payment_method-billing_details). `email` and `address.country` are required.
- `email` The customer's email.
- `address` The customer's billing address.
- `country` The customer's billing country.
- `return_url` The url your customer will be directed to after they complete authentication.

### Example

```title
Confirm
```