How can I dynamically create Ziparchive in Azure - azure

Question

I have multiple files in my Azure storage account say its Master container, I have created a dynamic container which will have the required files copied from Master Container, and those coped files needed to be zipped inside that created container. See below code, where in I have created the zip archive. Also the zip archive is getting created, but when I download manually and see the files, it seems corrupted (for ex. the actual size of the individual files are more than 1Mb but the files which I get after download seems 22Kb), and File formats would be .ipt, .iam (Autodesk Inventor Files)
CloudBlobContainer destContainer = blobClient.GetContainerReference(AzureContainer);
bool isCreated = destContainer.CreateIfNotExists();
var zipblob = destContainer.GetBlockBlobReference("inputAssembly.zip");
using (var stream = await zipblob.OpenWriteAsync())
using (var zip = new ZipArchive(stream, ZipArchiveMode.Create))
{
foreach (var fileName in inputfile)
{
using (var fileStream = new MemoryStream())
{
if (destContainer.GetBlockBlobReference(fileName).Exists())
{
destContainer.GetBlockBlobReference(fileName).DownloadToStream(fileStream);
}
var newZip = new ZipArchive(fileStream, ZipArchiveMode.Create);
var entry = newZip.CreateEntry(fileName, CompressionLevel.NoCompression);
using (var innerFile = entry.Open())
{
fileStream.CopyTo(innerFile);
}
fileStream.Close();
}
}
}

Answer 1

CloudBlobClient blobClient = storageAccount.CreateCloudBlobClient();
CloudBlobContainer container = blobClient.GetContainerReference(fixedpartContainer);
CloudBlobContainer destContainer1 = blobClient.GetContainerReference(AzureContainer);
bool isCreated = destContainer1.CreateIfNotExists();
var zipblob = destContainer1.GetBlockBlobReference("inputAssembly.zip");
using (var stream = await zipblob.OpenWriteAsync())
{
using (var zipArchive = new ZipArchive(stream, ZipArchiveMode.Create))
{
foreach (var blobName in blobFileNames)
{
var blob = destContainer.GetBlockBlobClient(blobName);
var zipEntry = zipArchive.CreateEntry(blobName);
using var zipStream = zipEntry.Open();
using var fileStream = new MemoryStream();
await blob.DownloadToAsync(fileStream);
await zipStream.WriteAsync(fileStream.ToArray());
AssemblyCreated = true;
}
}
}