# useApplyAttributeChange

Returns a function to mutate the `attributes` property of the checkout.

## 

### UseApplyAttributeChangeGeneratedType

Returns a function to mutate the `attributes` property of the checkout.

#### Returns: (change: AttributeChange) => Promise<AttributeChangeResult>
export function useApplyAttributeChange<
  Target extends RenderExtensionTarget = RenderExtensionTarget,
>(): (change: AttributeChange) => Promise<AttributeChangeResult> {
  const api = useApi<Target>();

  if ('applyAttributeChange' in api) {
    return api.applyAttributeChange;
  }

  throw new ExtensionHasNoMethodError(
    'applyAttributeChange',
    api.extension.target,
  );
}


### AttributeChange

### type

value: `"updateAttribute"`

  - Attribute: export interface Attribute {
  /**
   * The key for the attribute.
   */
  key: string;

  /**
   * The value for the attribute.
   */
  value: string;
}
The type of the `AttributeUpdateChange` API.

### key

value: `string`

Key of the attribute to add or update

### value

value: `string`

Value for the attribute to add or update

### Attribute

### key

value: `string`

The key for the attribute.

### value

value: `string`

The value for the attribute.

### AttributeChangeResultSuccess

The returned result of a successful update to an attribute.

### type

value: `"success"`

The type of the `AttributeChangeResultSuccess` API.

### AttributeChangeResultError

The returned result of an unsuccessful update to an attribute
with a message detailing the type of error that occurred.

### type

value: `"error"`

The type of the `AttributeChangeResultError` API.

### message

value: `string`

A message that explains the error. This message is useful for debugging.
It is **not** localized, and therefore should not be presented directly
to the buyer.

## Related

- [StandardApi](https://shopify.dev/docs/api/checkout-ui-extensions/apis/standardapi)
- [CheckoutApi](https://shopify.dev/docs/api/checkout-ui-extensions/apis/checkoutapi)
- [OrderStatusApi](https://shopify.dev/docs/api/checkout-ui-extensions/apis/orderstatusapi)
- [CartLineItemApi](https://shopify.dev/docs/api/checkout-ui-extensions/apis/cartlineitemapi)
- [PickupPointListApi](https://shopify.dev/docs/api/checkout-ui-extensions/apis/pickuppointlistapi)
- [PickupLocationListApi](https://shopify.dev/docs/api/checkout-ui-extensions/apis/pickuplocationlistapi)
- [ShippingOptionItemApi](https://shopify.dev/docs/api/checkout-ui-extensions/apis/shippingoptionitemapi)
- [ExtensionTargets](https://shopify.dev/docs/api/checkout-ui-extensions/apis/extensiontargets)