/// <summary>
/// req premium index kline
/// </summary>
/// <param name="contractCode"></param>
/// <param name="period"></param>
/// <param name="callbackFun"></param>
/// <param name="from"></param>
/// <param name="to"></param>
/// <param name="id"></param>
public void ReqEstimatedRateKLine(string contractCode, string period, _OnReqEstimatedRateResponse callbackFun, long from, long to, string id = _DEFAULT_ID)
{
string ch = $"market.{contractCode}.estimated_rate.{period}";
WSReqData reqData = new WSReqData()
{
req = ch, id = id, from = from, to = to
};
Req(JsonConvert.SerializeObject(reqData), ch, callbackFun, typeof(ReqIndexKLineResponse));
}
/// <summary>
/// req premium index kline
/// </summary>
/// <param name="contractCode"></param>
/// <param name="period"></param>
/// <param name="callbackFun"></param>
/// <param name="from"></param>
/// <param name="to"></param>
/// <param name="id"></param>
public void ReqEstimatedRateKLine(string contractCode, string period, _OnReqEstimatedRateResponse callbackFun, long from, long to, string id = WebSocketOp.DEFAULT_ID)
{
string ch = $"market.{contractCode}.estimated_rate.{period}";
WSReqData reqData = new WSReqData()
{
req = ch, id = id, from = from, to = to
};
string sub_str = JsonConvert.SerializeObject(reqData);
WebSocketOp wsop = new WebSocketOp(this.path, sub_str, callbackFun, typeof(ReqIndexKLineResponse), true, this.host);
wsop.Connect();
}