Lua

Append Text Content to a Remote FTP File

Demonstrates the Chilkat Ftp2.AppendFileFromTextData method, which appends text (encoded with a charset) to a remote file. The arguments are the remote filename, the text, and the charset.

Background: This is the append equivalent of PutFileFromTextData — the simplest way to add a line or record to a remote log or data file directly from a string, with no local file involved. The charset controls the encoding of the appended content; the remote filename's own encoding is handled separately.

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local chilkat = require("chilkat")

-- Demonstrates the Ftp2.AppendFileFromTextData method, which appends text (encoded with a
-- charset) to a remote file.  The 1st argument is the remote filename, the 2nd is the text, and
-- the 3rd is the charset.

local ftp = chilkat.Ftp2.new()

ftp.hostname = "ftp.example.com"
ftp.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.password = "myPassword"

local success = ftp:connect()
if not success then
    print(ftp.last_error_text)
    return
end

-- Append a log line directly, with no local file involved.
local line = "2026-07-27 12:00:00  server started\n"
success = ftp:append_file_from_text_data("logs/app.log", line, "utf-8")
if not success then
    print(ftp.last_error_text)
    return
end

print("Appended a log line.")

success = ftp:disconnect()
if not success then
    print(ftp.last_error_text)
    return
end