(Xojo Plugin) AWS Transfer for SFTP (Amazon S3)

Once you've setup your AWS Transfer for SFTP in the AWS Console, interacting with it is no different than any other SSH/SFTP server. AWS will provide a private key in PEM format. It is used for authentication (instead of a password).

For more information, see https://docs.aws.amazon.com/transfer/latest/userguide/getting-started-use-the-service.html

Chilkat Xojo Plugin Download Xojo Plugin for Windows, Linux, Mac OS X, and ARM, ARM64

// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

Dim sftp As New Chilkat.SFtp

// Connect to the AWS SFTP server.
// Change the domain to your value.
Dim domain As String
domain = "s-123456df999999fab.server.transfer.eu-west-2.amazonaws.com"
Dim port As Int32
port = 22
Dim success As Boolean
success = sftp.Connect(domain,port)
If (success = False) Then
    System.DebugLog(sftp.LastErrorText)
    Return
End If

// Load your AWS SFTP private key PEM file..
Dim sshKey As New Chilkat.SshKey
Dim keyText As String
keyText = sshKey.LoadText("qa_data/pem/s3_sftp_privateKey.pem")
If (sshKey.LastMethodSuccess <> True) Then
    System.DebugLog(sshKey.LastErrorText)
    Return
End If

success = sshKey.FromOpenSshPrivateKey(keyText)
If (success = False) Then
    System.DebugLog(sshKey.LastErrorText)
    Return
End If

// Authenticate with the SSH server using the private key.
success = sftp.AuthenticatePk("myUsername",sshKey)
If (success = False) Then
    System.DebugLog(sftp.LastErrorText)
    Return
End If

// After authenticating, the SFTP subsystem must be initialized:
success = sftp.InitializeSftp()
If (success = False) Then
    System.DebugLog(sftp.LastErrorText)
    Return
End If

// Upload from the local file to the SSH server.
// Important -- the remote filepath is the 1st argument,
// the local filepath is the 2nd argument;
Dim remoteFilePath As String
remoteFilePath = "hamlet.xml"
Dim localFilePath As String
localFilePath = "c:/temp/hamlet.xml"

success = sftp.UploadFileByName(remoteFilePath,localFilePath)
If (success = False) Then
    System.DebugLog(sftp.LastErrorText)
    Return
End If

System.DebugLog("Success.")