haskell - Minimal warp webserver example -


i want create website using warp webserver in haskell. i'm haskell beginner, examples this one complex me.

can show me simple, minimal example of how use warp?

note: question intentionally shows no research effort answered q&a-style.

here's minimal hello world application using warp 3.0+. run it, navigate http://localhost:3000. example show hello world.

in order keep example minimal, url paths not handled @ (the same content delivered path). longer example incorporating url path handling, see the haskell wiki

{-# language overloadedstrings #-}  import network.wai (responselbs, application) import network.wai.handler.warp (run) import network.http.types (status200) import network.http.types.header (hcontenttype)  main =     let port = 3000     putstrln $ "listening on port " ++ show port     run port app  app :: application app req f =     f $ responselbs status200 [(hcontenttype, "text/plain")] "hello world!"

update 2014-06-20: warp 3.0 included api changes -- reflect them in code.


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