# registerRestorePurchasesHandler

{% hint style="info" %}
**Apple Only**

This method is only available from the Nami SDK for Apple devices, or cross-platform SDKs being used on Apple devices.
{% endhint %}

For recommendations on where to present UI elements to your customers during a restore purchases process, see our [Restoring Purchases](doc:restoring-purchases) guide.

{% tabs %}
{% tab title="Swift" %}

```swift
NamiPurchaseManager.registerRestorePurchasesHandler { state, newPurchases, oldPurchases, error in
  // react to restore purchase process
}
```

{% endtab %}

{% tab title="Flutter" %}

```Text
// Coming soon
```

{% endtab %}

{% tab title="React Native" %}

```Text
// Coming soon
```

{% endtab %}

{% tab title="Unity" %}

```Text
NamiPurchaseManager.RegisterRestorePurchasesHandler(restorePurchasesCallback); // Apple only
```

{% endtab %}
{% endtabs %}

**Parameters**

Handler has the following parameters that return data:

* `state` - the [NamiRestorePurchasesState](/sdk-reference/namipurchasemanager/namirestorepurchasesstate.md), on React Native `stateDesc`
* `newPurchases` - a list of new purchases found that will be restored in the Restore Purchases process
* `oldPurchases` - a list of existing purchases already active on the device
* `error` - any error returned by the Restore Purchases process


---

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