BlobUnzip.cs

BlobUnzip.cs

public DataModel BlobToMemoryStream(string blobName)
{
    CloudBlockBlob blockBlob = cloudBlobContainer.GetBlockBlobReference(blobName);
    using (MemoryStream ms = new MemoryStream())
    {
        blockBlob.DownloadToStream(ms);
        ms.Seek(0, SeekOrigin.Begin);
        ms.Flush();
        ms.Position = 0;
        byte[] data = ms.ToArray();
        
        using (var msi = new MemoryStream(data))
        using (var mso = new MemoryStream())
        {
            using (var gs = new GZipStream(msi, CompressionMode.Decompress))
            {
                CopyTo(gs, mso);
            }

            string jsonString = Encoding.UTF8.GetString(mso.ToArray());
            msi.Dispose();
            return JsonConvert.DeserializeObject<DataModel>(jsonString);
        }
    }
}

void CopyTo(Stream src, Stream dest)
{
    byte[] bytes = new byte[4096];
    int cnt;
    while ((cnt = src.Read(bytes, 0, bytes.Length)) != 0)
    {
        dest.Write(bytes, 0, cnt);
    }
}