| Name | Type | Required | Description |
|---|---|---|---|
| id | string | Y | id generate by client |
| event | string | Y | subscribe/unsubscribe |
| topic | string | N | traders_open_interest |
Subscribe to aggregated traders’ open interest data via WebSocket, pushed every minute.
| Name | Type | Required | Description |
|---|---|---|---|
| id | string | Y | id generate by client |
| event | string | Y | subscribe/unsubscribe |
| topic | string | N | traders_open_interest |