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{-# LANGUAGE OverloadedStrings #-}
module Server where
import CmdLine
import Network.Wai
import Network.Wai.Handler.Warp
import Network.Wai.Handler.WebSockets
import qualified Network.WebSockets as WS
import Network.HTTP.Types
import Data.Text (Text)
server :: ServerOpts -> IO ()
server o = run (serverPort o) app
app :: Application
app = websocketsOr WS.defaultConnectionOptions websocketApp webapp
where
webapp _ respond = respond $
responseLBS status400 [] "Not a WebSocket request"
websocketApp :: WS.ServerApp
websocketApp pending_conn = do
conn <- WS.acceptRequest pending_conn
WS.sendTextData conn ("Hello, client!" :: Text)
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