CkPython

Append Bytes to a Remote FTP File (BinData)

Demonstrates the Chilkat Ftp2.AppendFileBd method, which appends the bytes in a BinData to a remote file. The first argument is the remote filename and the second is the BinData. No conversion is performed.

Background: The binary append: add in-memory bytes to the end of a remote file without an intermediate local file and without any encoding or line-ending translation. It is the right choice for growing a binary file — concatenating captured data, for instance — where exact bytes matter.

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import sys
import chilkat

success = False

#  Demonstrates the Ftp2.AppendFileBd method, which appends the bytes in a BinData to a remote
#  file.  The 1st argument is the remote filename and the 2nd is the BinData.

ftp = chilkat.CkFtp2()

ftp.put_Hostname("ftp.example.com")
ftp.put_Username("myFtpLogin")

#  Normally you would not hard-code the password in source.  You should instead obtain it
#  from an interactive prompt, environment variable, or a secrets vault.
ftp.put_Password("myPassword")

success = ftp.Connect()
if (success == False):
    print(ftp.lastErrorText())
    sys.exit()

bd = chilkat.CkBinData()
success = bd.LoadFile("qa_data/more_data.bin")
if (success == False):
    print(bd.lastErrorText())
    sys.exit()

success = ftp.AppendFileBd("data/collected.bin",bd)
if (success == False):
    print(ftp.lastErrorText())
    sys.exit()

print("Appended " + str(bd.get_NumBytes()) + " bytes.")

success = ftp.Disconnect()
if (success == False):
    print(ftp.lastErrorText())
    sys.exit()