## Handle a next action

Use `stripe.handleNextAction` in the [finalizing payments on the server](/payments/finalize-payments-on-the-server.md#next-actions)
flow to finish confirmation of a [SetupIntent](/api/setup_intents.md) with the `requires_action` status.
It will throw an error if the SetupIntent has a different status.

Depending on the payment method and required action, the customer may be temporarily redirected from your site
and brought back to the `return_url` [parameter](/api/setup_intents/confirm.md#confirm_setup_intent-return_url) provided when the SetupIntent is confirmed.

> Note that `stripe.handleNextAction` 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.
> 
> Additionally, `stripe.handleNextAction` may trigger a [3D Secure](/payments/3d-secure.md) authentication challenge.
> The authentication challenge requires a context switch that can be hard to follow on a screen-reader.
> Ensure that your form is accessible by ensuring that success or error messages are clearly read out.

This method returns a `Promise` which resolves with a `result` object.
This object has either:

* `result.setupIntent`: a [SetupIntent](/api/setup_intents) with the `processing` or `succeeded` status.
* `result.error`: an error.
  Refer to the [API reference](/api/errors) for all possible errors.

**Syntax:** `stripe.handleNextAction(...)`

- `options` (object) **required**

  - `clientSecret` (string)
    The [client secret](/api/setup_intents/object.md#setup_intent_object-client_secret) of the `SetupIntent`.

### Handle a next action

```js
stripe.handleNextAction({
  clientSecret: '{SETUP_INTENT_CLIENT_SECRET}'
}).then(function(result) {
  // Handle result.error or result.setupIntent
});
```

```es_next
const {
  setupIntent,
  error
} = await stripe.handleNextAction({
  clientSecret: '{SETUP_INTENT_CLIENT_SECRET}',
});

// Handle the setupIntent or error
```