ParcelDownloadGZip - LorenData/ECGrid-API GitHub Wiki

 public FileInfo ParcelDownloadGZip(string SessionID, long ParcelID)

using System.Xml;
using System.Web.Services.Protocols;
using System.IO.Compression;
using System.IO;
using System.Text;
using ECGridService = <ProjectName>.net.ecgridos;

try
{
    using (ECGridService.ECGridOSAPIv3 ECGrid = new ECGridService.ECGridOSAPIv3())
    {
        try
        {
            string SessionID = "00000000-0000-0000-0000-000000000000";
            long ParcelID = 46446847;

            ECGridService.FileInfo ParcelDownloadGZipFile = ECGrid.ParcelDownloadGZip(SessionID, ParcelID);

            // Write GZ to String/File using Stream Copy To
            string ParcelString = "";
            string LocalFilePath = Path.Combine(@"C:\EDI", ParcelDownloadGZipFile.FileName);

            // Write Compressed Byte[] to Memory Stream
            using (var compressedMemoryStream = new MemoryStream(ParcelDownloadGZipFile.Content))
            {
                // Create Decompressed Output Memory Stream
                using (var decompressedOutputMemoryStream = new MemoryStream())
                {
                    // GZip Decompress the Compressed Memory Stream
                    using (var gzipDecompressedStream = new GZipStream(compressedMemoryStream, CompressionMode.Decompress))
                    {
                        //Copy the GZip Decompressed MemoryStream to the decompressedOutputMemoryStream
                        gzipDecompressedStream.CopyTo(decompressedOutputMemoryStream);
                    }

                    ParcelString = Encoding.ASCII.GetString(decompressedOutputMemoryStream.ToArray());

                    File.WriteAllBytes(LocalFilePath, decompressedOutputMemoryStream.ToArray());

                    using (FileStream fs = new FileStream(LocalFilePath, FileMode.Create, FileAccess.Write))
                    {
                       fs.Write(decompressedOutputMemoryStream.ToArray(), 0, BitConverter.ToInt32(decompressedOutputMemoryStream.ToArray(),0));
                    }
                }
            }

            // Write GZ to String/File with buffer
            using (MemoryStream compressedMemoryStream = new MemoryStream())
            {
                // Get Length of Compressed Bytes
                // Write Compressed Byte[] to Memory Stream
                int msgLength = BitConverter.ToInt32(ParcelDownloadGZipFile.Content, 0);
                compressedMemoryStream.Write(ParcelDownloadGZipFile.Content, 4, ParcelDownloadGZipFile.Content.Length - 4);

                // Create Byte[] for Decompressed Bytes
                byte[] decompressedBuffer = new byte[msgLength];

                // Start at Compressed Memory Stream buffer Position 0
                // GZip Decompress the Compressed Memory Stream to the Decompressed Byte[] Buffer
                compressedMemoryStream.Position = 0;
                using (GZipStream zip = new GZipStream(compressedMemoryStream, CompressionMode.Decompress))
                {
                    zip.Read(decompressedBuffer, 0, decompressedBuffer.Length);
                }

                // Convert the Decompressed Byte[] Buffer to String
                ParcelString = Encoding.ASCII.GetString(decompressedBuffer);

                File.WriteAllBytes(LocalFilePath, decompressedBuffer);

                using (FileStream fs = new FileStream(LocalFilePath, FileMode.Create, FileAccess.Write))
                {
                    fs.Write(decompressedBuffer,0, decompressedBuffer.Length);
                }
            }

        }
        catch (SoapException SoapEx)
        {
            // See SOAP Exceptions in the Appendix
            var ECG_Ex = CatchException(SoapEx);
            Console.WriteLine($"ECGridOS Soap Exception: {ECG_Ex.ErrorCode} , Item: {ECG_Ex.ErrorItem}, Message: {ECG_Ex.ErrorMessage}, String: {ECG_Ex.ErrorString}");
        }
    } // END USING
}
catch (Exception ex){ Console.WriteLine("Unhandled Exception: " + ex.ToString()); }