# Class FacebookFeedHooks

- [TopLevel.Object](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md)
  - [dw.extensions.facebook.FacebookFeedHooks](/docs/commerce/b2c-commerce/references/b2c-script-api/dw.extensions.facebook.FacebookFeedHooks.md)

FacebookFeedHooks interface containing extension points for customizing Facebook export feeds.

These hooks are not executed in a transaction.

The extension points (hook names), and the functions that are called by each extension point. A function must be
defined inside a JavaScript source and must be exported. The script with the exported hook function must be located
inside a site cartridge. Inside the site cartridge a 'package.json' file with a 'hooks' entry must exist.

```
"hooks": "./hooks.json"
```

The hooks entry links to a json file, relative to the 'package.json' file. This file lists all registered hooks
inside the hooks property:

```
"hooks": [
     {"name": "dw.extensions.facebook.feed.transformProduct", "script": "./hooks.ds"}
]
```

A hook entry has a 'name' and a 'script' property.

- The 'name' contains the extension point, the hook name.
- The 'script' contains the script relative to the hooks file, with the exported hook function.

## Constant Summary

| Constant                                                                                                                                                                                               | Description                                                            |
| ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ---------------------------------------------------------------------- |
| [extensionPointTransformProduct](#extensionpointtransformproduct): [String](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.String.md) = "dw.extensions.facebook.feed.transformProduct" | The extension point name dw.extensions.facebook.feed.transformProduct. |

## Constructor Summary

This class does not have a constructor, so you cannot create it directly.

## Method Summary

| Method                                                                                                                                                                                                                                                                                                                                                                                                                                                               | Description                                                                                                                   |
| -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------- |
| [transformProduct](/docs/commerce/b2c-commerce/references/b2c-script-api/dw.extensions.facebook.FacebookFeedHooks.md#transformproductproduct-facebookproduct-string)([Product](/docs/commerce/b2c-commerce/references/b2c-script-api/dw.catalog.Product.md), [FacebookProduct](/docs/commerce/b2c-commerce/references/b2c-script-api/dw.extensions.facebook.FacebookProduct.md), [String](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.String.md)) | <p>  Called after default transformation of given Demandware product to Facebook product as part of the catalog feed  export. |

### Methods inherited from class Object

[assign](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#assignobject-object), [create](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#createobject), [create](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#createobject-object), [defineProperties](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#definepropertiesobject-object), [defineProperty](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#definepropertyobject-object-object), [entries](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#entriesobject), [freeze](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#freezeobject), [fromEntries](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#fromentriesiterable), [getOwnPropertyDescriptor](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#getownpropertydescriptorobject-object), [getOwnPropertyNames](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#getownpropertynamesobject), [getOwnPropertySymbols](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#getownpropertysymbolsobject), [getPrototypeOf](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#getprototypeofobject), [hasOwnProperty](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#hasownpropertystring), [is](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#isobject-object), [isExtensible](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#isextensibleobject), [isFrozen](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#isfrozenobject), [isPrototypeOf](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#isprototypeofobject), [isSealed](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#issealedobject), [keys](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#keysobject), [preventExtensions](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#preventextensionsobject), [propertyIsEnumerable](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#propertyisenumerablestring), [seal](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#sealobject), [setPrototypeOf](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#setprototypeofobject-object), [toLocaleString](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#tolocalestring), [toString](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#tostring), [valueOf](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#valueof), [values](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#valuesobject)

## Constant Details

### extensionPointTransformProduct

- extensionPointTransformProduct: [String](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.String.md) = "dw\.extensions.facebook.feed.transformProduct"
  - : The extension point name dw\.extensions.facebook.feed.transformProduct.

***

## Method Details

### transformProduct(Product, FacebookProduct, String)

- transformProduct(product: [Product](/docs/commerce/b2c-commerce/references/b2c-script-api/dw.catalog.Product.md), facebookProduct: [FacebookProduct](/docs/commerce/b2c-commerce/references/b2c-script-api/dw.extensions.facebook.FacebookProduct.md), feedId: [String](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.String.md)): [Status](/docs/commerce/b2c-commerce/references/b2c-script-api/dw.system.Status.md)
  - :

    Called after default transformation of given Demandware product to Facebook product as part of the catalog feed
    export.

    To customize multiple feeds differently, for example if one is for Facebook Dynamic Ads and the other is for
    Instagram Commerce, use the `feedId` parameter to determine which feed is being exported. If the same
    customization should apply to all feeds, ignore the parameter.

    **Parameters:**

    - product - the Demandware product
    - facebookProduct - the Facebook representation of the product
    - feedId - the merchant-selected ID for the feed being exported

    **Returns:**

    - a non-null Status ends the hook execution

***