// C# Extension Method

// Doc: https://csharp-extension.com/en/method/1002091/string-compressgzip

​

// @nuget: Z.ExtensionMethods

​

using System;

using System.IO;

using System.IO.Compression;

using System.Text;

​

public class Program

{

    public static string FileName = "test.txt";

​

    public static void Main()

    {

        string phrase = "The quick brown fox jumps over the lazy dog.";

​

        byte[] bytesBeforeCompression = phrase.ToByteArray();

        //C# Extension Method: String - CompressGZip

        byte[] bytesAfterCompression = phrase.CompressGZip();

​

        var orginalBytes = Decompress(bytesAfterCompression);

​

        var file = FileName.ToFileInfo();

        file.WriteAllBytes(orginalBytes);

​

        Console.WriteLine(file.ReadAllText());

    }

​

    public static byte[] Decompress(byte[] data)

    {

        using (var compressedStream = new MemoryStream(data))

        {

            using (var zipStream = new GZipStream(compressedStream, CompressionMode.Decompress))

            {

                using (var resultStream = new MemoryStream())

                {

                    zipStream.CopyTo(resultStream);

                    return resultStream.ToArray();

                }

            }

        }

    }

}

​