## Confirm a TWINT payment

`stripe.confirmTwintPayment(clientSecret: string, data?: object, options?: object)`

Use `stripe.confirmTwintPayment` in the TWINT payment method creation flow when the customer submits your payment form. When you call the method, it confirms the [PaymentIntent](https://docs.stripe.com/api/payment_intents.md) with the `data` you provide, and automatically redirects the customer to authorize the transaction. Once authorization is complete, the customer is redirected back to your specified `return_url`.

When you confirm a `PaymentIntent`, it needs to have an attached [PaymentMethod](https://docs.stripe.com/api/payment_methods.md). In addition to confirming the `PaymentIntent`, this method can automatically create and attach a new `PaymentMethod` for you. If you've already attached a `return_url` and a `PaymentMethod`, you can call this method without needing to provide any additional data. These use cases are detailed in the sections that follow.

> Note that `stripe.confirmTwintPayment` might 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/payment_intents/object.md#payment_intent_object-client_secret) of the `PaymentIntent`.
* `data` Data to be sent with the request. Refer to the [Payment Intents API](https://docs.stripe.com/api/payment_intents/confirm.md) for a full list of parameters.
* `payment_method` Either the `id` of an existing [PaymentMethod](https://docs.stripe.com/api/payment_methods.md), or an object containing data to create a `PaymentMethod` with. See the use case sections below for details.
* `return_url` The url your customer will be directed to after they complete authentication.
* `options` An options object to control the behavior of this method.
* `handleActions` Set this to `false` if you want to [manually handle the authorization redirect](https://docs.stripe.com/payments/twint/accept-a-payment.md#handle-redirect). Default is `true`.

### without an existing payment method

#### Data argument properties

* `payment_method` Pass payment method billing details.
* `billing_details` The [billing_details](https://docs.stripe.com/api/payment_methods/create.md#create_payment_method-billing_details) associated with the payment.

### Example

```javascript
const stripe = Stripe('pk_test_...');

stripe.confirmTwintPayment(clientSecret, {
  payment_method: {
    billing_details: {
      name: 'Jenny Rosen',
      email: 'jenny@example.com',
    },
  },
}).then(function(result) {
  if (result.error) {
    // Inform the user if there was an error.
  }
});
```

### with an existing PaymentMethod

#### 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

```javascript
const stripe = Stripe('pk_test_...');

stripe.confirmTwintPayment(clientSecret, {
  payment_method: 'pm_...',
}).then(function(result) {
  if (result.error) {
    // Inform the user if there was an error.
  }
});
```