Hi,

I would recommend using the .NET Example Application (C# / Direct HTTP - executable code examples):

https://hosted.datascopeapi.reuters.com/RestApi.Help/Home/ExampleAppInstructions

(from landing page: https://hosted.datascopeapi.reuters.com/RestApi.Help/Home/Index - DSS credentials required)

Once unzipped use ...\RESTAPIExampleApplication\bin\Release\Dss.Api.Examples.exe

Login into DSS App using DSS credentials

The "Schedule Extractions" (section) > "Cleanup" example should help here, particularly this part of the code:

//Delete the extracted files, schedule, instrument list and report template. See the "Cleanup" example for
//the various steps involved with cleanup. NOTE: It is a good idea to clean up the extracted files (Report Extractions)
//once you have downloaded the results. If the schedule is not immediate (i.e. recurring), you want to keep the 
//instrument list, report template and schedule around.
if (schedule.ScheduleId != null)
{
 //Get the extractions so that we can delete the extraction files
 var scheduleExtractions = ExtractionsContext.ReportExtractionOperations.GetByScheduleId(schedule.ScheduleId);

 foreach (var reportExtraction in scheduleExtractions)
 {
 //Get all the files for this extraction
 ExtractionsContext.LoadProperty(reportExtraction, "Files");

 //Use the DeleteMultiple method to delete all the files associated with the schedule
 var fileIds = reportExtraction.Files
 .Where(f => f.ContentsExists).Select(f => f.ExtractedFileId).ToList();
 if (fileIds.Count > 0)
 ExtractionsContext.ExtractedFileOperations.DeleteMultiple(fileIds);
 }

This landing page can also be found via the DSS GUI: https://hosted.datascope.reuters.com/DataScope/ > "Help" (dropdown) > "REST API Help"

Best regards,

Gareth