Get Open Interest and Volume

Get historical open interest and volume data for contract products.

GET /deepcoin/market/open-interest-volume

Field Name	Required	Type	Description
instId	true	string	Contract product ID, for example `BTC-USDT-SWAP`
bar	false	string	Time granularity Default: `5m` Supported values: `5m`, `15m`, `30m`, `1H`, `4H`, `1D`
startTime	false	integer	Start timestamp in milliseconds. When only `startTime` is provided, data with `ts >= startTime` is returned
endTime	false	integer	End timestamp in milliseconds. When only `endTime` is provided, data with `ts <= endTime` is returned
limit	false	integer	Maximum number of results is `300` Default: `100`

If neither startTime nor endTime is provided, the latest data is returned. Data is sorted by ts in descending order.

Field Name	Type	Description
ts	string	Timestamp in milliseconds
oi	string	Open interest, in contract count
vol	string	Volume, in contract count

{
  "code": "0",
  "msg": "Success",
  "data": [
    {
      "ts": "1781222400000",
      "oi": "36214521",
      "vol": "41954711"
    }
  ]
}

Get Open Interest and Volume​