help please with example code
how to get the REST API

is this the correct code or should I use another one?
Please give me an example code.
new TickHistoryTimeAndSalesExtractionRequest
{
//Condition = new TickHistoryMarketDepthCondition
Condition = new TickHistoryTimeAndSalesCondition
{
ReportDateRangeType = ReportDateRangeType.Range,
QueryStartDate = startDate, //new DateTimeOffset(2016, 07, 25, 20, 0, 0, TimeSpan.Zero),
QueryEndDate = lastDate, //new DateTimeOffset(2016, 08, 02, 19, 59, 59, TimeSpan.Zero),
ExtractBy = TickHistoryExtractByMode.Ric,
MessageTimeStampIn = TickHistoryTimeOptions.GmtUtc,
SortBy = TickHistorySort.SingleByRic,
//View = TickHistoryMarketDepthViewOptions.LegacyLevel2,
//Preview = PreviewMode.Content
DisplaySourceRIC = true,
ApplyCorrectionsAndCancellations = false,
},
ContentFieldNames = availableTnSFields.Select(f => f.Name).ToArray(),
IdentifierList = new InstrumentIdentifierList
{
InstrumentIdentifiers = new[]
{
InstrumentIdentifier.Create(result.IdentifierType, result.Identifier)
},
ValidationOptions = new InstrumentValidationOptions
{
AllowHistoricalInstruments = true
}
},