(CkPython) SFTP Fsync -- Flush an Open File on the Server

Demonstrates how to flush the contents of an open file on the server. This example only works for servers that implement the fsync@openssh.com extension.

Note: This example requires Chilkat v9.5.0.71 or later.

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

import sys
import chilkat

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

sftp = chilkat.CkSFtp()

# Pass a domain or IP address..
success = sftp.Connect("my-sftp-server.com",22)
if (success == True):
    success = sftp.AuthenticatePw("mySFtpLogin","mySFtpPassword")

if (success == True):
    success = sftp.InitializeSftp()

if (success != True):
    print(sftp.lastErrorText())
    sys.exit()

# Open a file on the server for writing.
handle = sftp.openFile("myTest.txt","writeOnly","createTruncate")
if (sftp.get_LastMethodSuccess() != True):
    print(sftp.lastErrorText())
    sys.exit()

# Write some text to the file:
success = sftp.WriteFileText(handle,"ansi","abcdefghijklmnopqrstuvwxyz")
if (success != True):
    print(sftp.lastErrorText())
    sys.exit()

# Make sure the server flushes what we wrote to the disk..
# (this is requires a server that implements the fsync@openssh.com SFTP protocol extension)
success = sftp.Fsync(handle)
if (success != True):
    print(sftp.lastErrorText())
    sys.exit()

# ....
# ....

success = sftp.WriteFileText(handle,"ansi","ABCDEFGHIJKLMNOPQRSTUVWXYZ")
if (success != True):
    print(sftp.lastErrorText())
    sys.exit()

# Close the file.
success = sftp.CloseHandle(handle)
if (success != True):
    print(sftp.lastErrorText())
    sys.exit()

print("Success.")