---
title: MarketplaceWebhookCreateRequest.Data.Attributes
framework: appstoreconnectapi
role: symbol
role_heading: Object
path: appstoreconnectapi/marketplacewebhookcreaterequest/data-data.dictionary/attributes-data.dictionary
---

# MarketplaceWebhookCreateRequest.Data.Attributes

The attributes you set that describe the marketplace webhook used to create a new resource.

## Declaration

```data
object MarketplaceWebhookCreateRequest.Data.Attributes
```

## Properties

endpointUrl: secret: An arbitrary string. Alternative marketplaces use this secret string to verify the incoming requests from Apple about changes to apps. For more information about webhook-style validation, see Github’s Validating webhook deliveries. For more information about implementing Hash-based Message Authentication Code (HMAC) security in your notifications webhook, see Processing alternative app marketplace notifications.