public async Task GetPriceHistoryAsync(object tickerTableSelectedRowData, object priceHistoryDateRange)
{
Entities.Ticker ticker = JsonConvert.DeserializeObject <Entities.Ticker>(tickerTableSelectedRowData.ToString());
_logger.LogInformation($"GetPriceHistoryAsync {ticker.Symbol} {Context.ConnectionId}");
DateTimeRange dateTimeRange = JsonConvert.DeserializeObject <DateTimeRange>(priceHistoryDateRange.ToString());
await Clients.Caller.SendCoreAsync("drawPriceHistory", new object[]
{
CompiledQueries.PriceHistory(ticker.Symbol, dateTimeRange),
ticker
});
}