Lua

Append Text to a Remote FTP File (StringBuilder)

Demonstrates the Chilkat Ftp2.AppendFileSb method, which encodes the text in a StringBuilder and appends the bytes to a remote file. The arguments are the remote filename, the StringBuilder, and the charset.

Background: When you have accumulated several lines or records in a StringBuilder, this appends them to a remote file in one call, encoding as it writes. It pairs naturally with building up text in memory and flushing it to a remote log periodically.

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Lua

local chilkat = require("chilkat")

-- Demonstrates the Ftp2.AppendFileSb method, which encodes the text in a StringBuilder and
-- appends the bytes to a remote file.  The 1st argument is the remote filename, the 2nd is the
-- StringBuilder, 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

local sb = chilkat.StringBuilder.new()
sb:append("appended line one\n")
sb:append("appended line two\n")

success = ftp:append_file_sb("logs/app.log", sb, "utf-8")
if not success then
    print(ftp.last_error_text)
    return
end

print("Appended text.")

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