Hi all, I'm trying to make a web server that manages its own state. The user can issue commands that modifies the state. I did like below but unfortunatly the state is not keep after a command is issued... What is the right way to do it? Is there any example sites with an internal state with happstack? *data Game = (the state of my game) type NomicServer = ServerPartT (StateT Game IO) launchWebServer :: Game -> IO () launchWebServer initialState = do putStrLn "Starting web server...\nTo connect, drive your browser to \" http://localhost:8000/Login\"" d <- getDataDir simpleHTTP' unpackStateT nullConf $ server d server :: FilePath -> ServerPartT (StateT Game IO) Response server d sh = mconcat [fileServe [] d, do decodeBody (defaultBodyPolicy "/tmp/" 4096 4096 4096) html <- implSite "http://localhost:8000/" "" nomicSite return $ toResponse html] unpackStateT:: Game -> UnWebT (StateT Game IO) Response -> UnWebT IO Response unpackStateT g w = evalStateT w g --handler for web routes nomicSite :: Site PlayerCommand (NomicServer Html) nomicSite = setDefault (Noop 0) Site { handleSite = \f url -> unRouteT (routedNomicCommands url) f , formatPathSegments = \u -> (toPathSegments u, []) , parsePathSegments = parseSegments fromPathSegments }* Thanks a lot, Corentin