> ## Documentation Index
> Fetch the complete documentation index at: https://docs.daily.co/llms.txt
> Use this file to discover all available pages before exploring further.

# Streaming Started

> The streaming started webhook event

A streaming started event emits when Daily begins to stream a call. These can be activated via [`startLiveStreaming()`](/reference/daily-js/instance-methods/start-live-streaming) or via the [REST API](/reference/rest-api/rooms/live-streaming/start).

## Common fields

<ParamField body="version" type="string">
  Represents the version of the event. Uses semantic versioning to inform a consumer if the payload has introduced any breaking changes.
</ParamField>

<ParamField body="type" type="string">
  Represents the type of the event described in the payload.
</ParamField>

<ParamField body="id" type="string">
  An identifier representing this specific event.
</ParamField>

<ParamField body="payload" type="object">
  An object representing the event, whose fields are described below.
</ParamField>

<ParamField body="event_ts" type="number">
  Documenting when the webhook itself was sent. This timestamp is different than the time of the event the webhook describes.
</ParamField>

## Payload

<ParamField body="timestamp" type="integer">
  The Unix epoch time in seconds representing when streaming was started.
</ParamField>

<ParamField body="instance_id" type="string">
  The streaming instance ID.
</ParamField>

<ParamField body="domain_id" type="string">
  ID of the domain for which streaming was started.
</ParamField>

<ParamField body="layout" type="object">
  The layout used for streaming.
</ParamField>

```json theme={null}
{
  "version": "1.0.0",
  "type": "streaming.started",
  "id": "str-sta-c3df927c-f738-4471-a2b7-066fa7e95a6b-1692124183",
  "payload": {
    "timestamp": 1692124183,
    "instance_id": "c3df927c-f738-4471-a2b7-066fa7e95a6b",
    "domain_id": "96df0296-b344-4abb-8b78-82df35cc58f4",
    "layout": {
      "preset": "active-participant"
    }
  },
  "event_ts": 1692124183
}
```