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c#.netsftpazure-blob-storagessh.net
Alex Gordon
Alex Gordon

Reputation: 60731

Uploading a Azure blob directly to SFTP server without an intermediate file

I'm attempting to upload am Azure blob directly to an SFTP server.

It's simple to upload a file from a local location:

using (var sftp = new SftpClient(connectionInfo)){
    sftp.Connect();
    using (var uplfileStream = System.IO.File.OpenRead(fileName)){
        sftp.UploadFile(uplfileStream, fileName, true);
    }
    sftp.Disconnect();
}

Is there a way to copy blobs from blob storage directly to an SFTP server?

Upvotes: 2

Views: 3016

Answers (1)

Martin Prikryl
Martin Prikryl

Reputation: 202271

  1. Either combine CloudBlob.OpenRead with SftpClient.UploadFile:

    using (var blobReadStream = blockBlob.OpenRead())
{
    sftp.UploadFile(blobReadStream, remotePath, true);
}

  2. Or combine SftpClient.Create with CloudBlob.DownloadToStream:

    using (var sftpWriteStream = sftp.Create(remotePath))
{
    blockBlob.DownloadToStream(sftpWriteStream);
}

The first approach should be a way faster in SFTP terms, as SftpClient.UploadFile is optimized, comparing to the SftpFileStream returned by SftpClient.Create.

Upvotes: 1

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