# data_map.webhooks An array of objects that define external API calls. ## Parameters | Name | Type | Description | |:--|:|:| | [expressions](./data_map.expressions.mdx) | object | A list of expressions to be evaluated upon matching. | | url | string | The endpoint for the external service or API. | | headers | object | Any necessary headers for the API call. | | method | string | The HTTP method (GET, POST, etc.) for the API call. | | [output](./data_map.output.mdx) | object | Defines the response or action to be taken when the webhook is successfully triggered. |