Cookbook/Network programming
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The following example makes use of the Network and System.IO libraries to open a socket connection to Google and retrieve the Google home page.
import Network;
import System.IO;
main = withSocketsDo $ do
h <- connectTo "www.google.com" (PortNumber 80)
hSetBuffering h LineBuffering
hPutStr h "GET / HTTP/1.1\nhost: www.google.com\n\n"
contents <- hGetContents h
putStrLn contents
hClose h