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

# Announcement

> Subscribe to real-time system announcements via WebSocket.

Push interval: on new announcement

```json theme={null}
{
  "id": "clientID11",
  "topic": "announcement",
  "event": "subscribe"
}
```

**Parameters**

| Name  | Type   | Required | Description               |
| ----- | ------ | -------- | ------------------------- |
| id    | string | Y        | id generate by client     |
| event | string | Y        | `subscribe`/`unsubscribe` |
| topic | string | N        | `announcement`            |

<RequestExample>
  ```json Response theme={null}
  {
     "id":"clientID11",
     "event":"subscribe",
     "success":true,
     "ts":1682242408023
  }
  ```
</RequestExample>

<ResponseExample>
  ```json Subscribed Message theme={null}
  {
     "topic":"announcement",
     "ts":1682242806000,
     "data": {
          "announcement_id": 1,
          "message": "Position information is incorrect due to a 1-minute delay.", 
          "url": null
        }
  }
  ```
</ResponseExample>