HTTP-4000.2.9: A library for client-side HTTP

Portabilitynon-portable (not tested)
MaintainerGanesh Sittampalam <>
Safe HaskellSafe-Inferred



An library for creating abstract streams. Originally part of Gray's\/Bringert's HTTP module.

  • Changes by Robin Bate Boerop - Removed unnecessary import statements. - Moved Debug code to StreamDebugger.hs - Moved Socket-related code to StreamSocket.hs.
  • Changes by Simon Foster: - Split Network.HTTPmodule up into to separate Network.[Stream,TCP,HTTP] modules



class Stream x whereSource

Streams should make layering of TLS protocol easier in future, they allow reading/writing to files etc for debugging, they allow use of protocols other than TCP/IP and they allow customisation.

Instances of this class should not trim the input in any way, e.g. leave LF on line endings etc. Unless that is exactly the behaviour you want from your twisted instances ;)


readLine :: x -> IO (Result String)Source

readBlock :: x -> Int -> IO (Result String)Source

writeBlock :: x -> String -> IO (Result ())Source

close :: x -> IO ()Source



:: x 
-> Bool 
-> IO ()

True => shutdown the connection when response has been read / end-of-stream has been reached.


type Result a = Either ConnError aSource

This is the type returned by many exported network functions.

bindE :: Result a -> (a -> Result b) -> Result bSource

fmapE :: (a -> Result b) -> IO (Result a) -> IO (Result b)Source