# CallbackOptions

- [JSON representation](https://developers.google.com/wallet/reference/rest/v1/CallbackOptions#SCHEMA_REPRESENTATION)

| JSON representation |
|---|
| ``` { "url": string, "updateRequestUrl": string } ``` |

| Fields ||
|---|---|
| `url` | `string` The HTTPS url configured by the merchant. The URL should be hosted on HTTPS and robots.txt should allow the URL path to be accessible by UserAgent:Googlebot. |
| `updateRequestUrl (deprecated)` | `string` > [!WARNING] > This item is deprecated! URL for the merchant endpoint that would be called to request updates. The URL should be hosted on HTTPS and robots.txt should allow the URL path to be accessible by UserAgent:Googlebot. Deprecated. |