FXD5 in DSS standard solution has different file size via API download versus GUI Download.

shwetha.krishnaiah02

1) Download FXD5-2022-08-09-NORMALIZEDMP-Data-1-of-1.csv.gz from https://select.datascope.refinitiv.com/datascope/standard/extractions#

2) Use a c# client (Please dont use Postman as it is not capable of handling huge file size). Also, since we use .NEt console app using c#, it would be more close if you can download the same file using a C# client program.

3) Compare the file size downloaded from GUI and the file downloaded from C# Client program. The file downloaded from C# client program seems to be 4 times bigger than the file downloaded from GUI.

zoya faberov

Hello @shwetha.krishnaiah02 ,

From my testing, the result for FXD5-2022-08-09-NORMALIZEDMP-Data-1-of-1.csv.gz download is consistent, across DSS GUI, Postman download and C# client code and is 22,014 KB.

To test, I have added to Dss.Net.Examples -> StandardExtractionExamples:

 [EndToEndExampleAttribute(typeof(StandardExtractionsContext), typeof(UserPackageDelivery))]
        [EndToEndExampleAttribute(typeof(StandardExtractionsContext))]
        [Example("Download my Specific Package Delivery")]
        public void DownloadMySpecificPackageDelivery()

            Status.Notify(StandardExtractionsContext, "UserPackageDelivery", "GetReadStream", MethodType.Operation, Publish.Primary);

            string testUserPackageDelivery = "0x081f7249558e1c7e";
            string testFileName = "FXD5-2022-08-09-NORMALIZEDMP-Data-1-of-1.csv.gz";
            using (var response = StandardExtractionsContext.UserPackageDeliveryOperations.GetReadStream(testUserPackageDelivery))

                        var breader = new BinaryReader(response.Stream);
                        var fileStream = File.Create("..\\" + testFileName);
                        const int bufferSize = 4096;

                        byte[] buffer = new byte[bufferSize];
                        int count;
                        while ((count = breader.Read(buffer, 0, buffer.Length)) != 0)
                            fileStream.Write(buffer, 0, count);

                        fileStream.Close();
                        Status.EndNotify(StandardExtractionsContext);
                    }

        }

        #region Tick History

And when I run from GSS NET Example GUI:

The resulting file is stored in bin folder, one up from the example and is of the exact same size. Once unzipped, the file is bigger, but is still consistent with DSS GUI download.

Hope that this information helps