Create a Zip from ASP.NET Core Web API

ZipArchive.cs

[HttpGet]
[Route("/api/download/zip/{Code}")]
public async Task<IActionResult> Zip(string Code)
{
    byte[] bytes = null;
            
    using (MemoryStream zipStream = new MemoryStream())
    {
        using (var zip = new ZipArchive(zipStream, ZipArchiveMode.Create, true))
        {
            var files = await _repo.GetForDownloadAsync();

            foreach (var file in files.Where(f => f.Code == Code))
            {
                var path = file.FileUrl.Replace($"{_config["AzureStorage:Url"]}{_config["AzureStorage:ContainerName"]}/", "");
                var tempFileName = await _azure.GetFilesByRef(path);

                var fi = new FileInfo(tempFileName);

                if (fi.Exists)
                {
                    var e = zip.CreateEntryFromFile(fi.FullName, Path.GetFileName(file.FileUrl), CompressionLevel.Fastest);
                }
            }
        }
        zipStream.Seek(0, SeekOrigin.Begin);
        bytes = zipStream.ToArray();
    }

    return File(bytes, MediaTypeNames.Application.Zip, $"{Code}_{DateTime.Now.ToString().Replace('/','-')}.zip");
}