Lua

TCP/IP Socket Connect to Remote Host:Port

See more Socket/SSL/TLS Examples

Demonstrates how to create a TCP/IP socket, connect to a remote host:port, and receive a "Hello World!" message. Lua

local chilkat = require("chilkat")

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

local socket = chilkat.Socket.new()

-- Connect to port 5555 of localhost.
-- The string "localhost" is for testing on a single computer.
-- It would typically be replaced with an IP hostname, such
-- as "www.chilkatsoft.com".
local ssl = false
local maxWaitMillisec = 20000
local success = socket:connect("localhost", 5555, ssl, maxWaitMillisec)
if not success then
    print(socket.last_error_text)
    return
end

-- Set maximum timeouts for reading an writing (in millisec)
socket.max_read_idle_ms = 10000
socket.max_send_idle_ms = 10000

-- Pretend, for the sake of the example, that the
-- ficticious server is going to send a "Hello World!"
-- after accepting the connection.
-- Note: Technically, the ReceiveString may not receive the
-- complete string, although it's highly probable given the short
-- length of the "Hello World!" message.
-- See this Chilkat blog post for more information:
-- <a href="http://www.cknotes.com/?p=302">http://www.cknotes.com/?p=302</a>
local receivedMsg = socket:receive_string()
if not socket.last_method_success then
    print(socket.last_error_text)
    return
end

-- Close the connection with the server
-- Wait a max of 20 seconds (20000 millsec)
success = socket:close(20000)

print(receivedMsg)