For App Studio .NET SDK, the application can specify time interval when using Time Series service. The following example shows how to make a request for the 5 latest data points for EUR= (Euro) BID quote Daily history.

private void Request()
{
    _request = _timeSeries.SetupDataRequest("EUR=")
        .WithView("BID")
        .WithAllFields()
        .WithInterval(CommonInterval.Daily)
        .WithNumberOfPoints(5)
        .OnDataReceived(DataReceivedCallback)
        .CreateAndSend();
}

For more information, please refer to the Data API - Time series tutorial.