Lua

Connect and Log In to an FTP Server

Demonstrates the Chilkat Ftp2.Connect method, which connects to the server and authenticates in a single call. It takes no arguments and uses the Hostname, Port, Username, and Password properties.

Background: Connect is the one-call path that covers the whole handshake: it opens the TCP connection (through any configured proxy), negotiates TLS if enabled, reads the server greeting, and sends USER/PASS to log in. For most applications this is all that is needed. Use ConnectOnly plus LoginAfterConnectOnly instead when you need to do something between connecting and authenticating — such as inspecting the greeting or choosing credentials based on it.

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Lua

local chilkat = require("chilkat")

-- Demonstrates the Ftp2.Connect method, which connects to the server and authenticates in one
-- call.  It takes no arguments and uses the Hostname, Port, Username, and Password properties.

local ftp = chilkat.Ftp2.new()

-- The FTP server to connect to.  Port defaults to 21 for FTP.
ftp.hostname = "ftp.example.com"
ftp.port = 21

-- The login credentials.
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"

-- Connect negotiates any configured proxy and TLS, receives the greeting, and logs in.
local success = ftp:connect()
if not success then
    print(ftp.last_error_text)
    return
end

print("Connected and logged in.")

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