(Chilkat2-Python) 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

Chilkat2 Python Downloads install with pip pip3 install chilkat2 or download... Python Module for Windows, Linux, Alpine Linux, MacOS, Solaris

import sys
import chilkat2

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

sftp = chilkat2.SFtp()

# Connect to the AWS SFTP server.
# Change the domain to your value.
domain = "s-123456df999999fab.server.transfer.eu-west-2.amazonaws.com"
port = 22
success = sftp.Connect(domain,port)
if (success == False):
    print(sftp.LastErrorText)
    sys.exit()

# Load your AWS SFTP private key PEM file..
sshKey = chilkat2.SshKey()
keyText = sshKey.LoadText("qa_data/pem/s3_sftp_privateKey.pem")
if (sshKey.LastMethodSuccess != True):
    print(sshKey.LastErrorText)
    sys.exit()

success = sshKey.FromOpenSshPrivateKey(keyText)
if (success == False):
    print(sshKey.LastErrorText)
    sys.exit()

# Authenticate with the SSH server using the private key.
success = sftp.AuthenticatePk("myUsername",sshKey)
if (success == False):
    print(sftp.LastErrorText)
    sys.exit()

# After authenticating, the SFTP subsystem must be initialized:
success = sftp.InitializeSftp()
if (success == False):
    print(sftp.LastErrorText)
    sys.exit()

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

success = sftp.UploadFileByName(remoteFilePath,localFilePath)
if (success == False):
    print(sftp.LastErrorText)
    sys.exit()

print("Success.")