> Fetch clean Markdown by appending `.md` to any page URL under https://signalwire.com/docs or requesting it with the HTTP header `Accept: text/markdown`. The root index at https://signalwire.com/docs/llms.txt lists the available documentation indexes.

# body

> Set the request body for a webhook.

[ref-datamap]: /docs/server-sdks/reference/typescript/agents/data-map

[params]: /docs/server-sdks/reference/typescript/agents/data-map/params

Set the request body for the most recently added webhook. Used for POST/PUT
requests. Writes to the `body` key of the webhook definition.

> **Warning**
>
> `body()` and [`params()`][params] write to different keys in the webhook
> specification: `body` sets the request body, while `params` sets
> query/form parameters.

## **Parameters**

**`data`** `Record<string, unknown>` — required

Request body data. Supports `${variable}` substitutions.

---

## **Returns**

[`DataMap`][ref-datamap] -- Self for method chaining. Throws an `Error` if no webhook
has been added yet.

## **Example**

```typescript {10}
import { DataMap, FunctionResult } from '@signalwire/sdk';

const search = new DataMap('search_docs');
search
  .purpose('Search documentation')
  .parameter('query', 'string', 'Search query', { required: true })
  .webhook('POST', 'https://api.docs.example.com/search', {
    headers: { Authorization: 'Bearer TOKEN' },
  })
  .body({ query: '${args.query}', limit: 3 })
  .output(new FunctionResult('Found: ${response.results[0].title}'));
```

> Set the request body for a webhook.