loli

import Network.Loli
import Hack.Handler.Happstack

main = run . loli $ get "/" (text "loli power")

cabal update
cabal install loli
cabal install hack-handler-happstack

-- copy and paste the above example to myapp.hs

ghc --make myapp.hs
./myapp

-- use - instead of $ for clarity
import MPS.Light ((-))
import Prelude hiding ((-))

import Network.Loli
import Hack.Handler.Happstack

main = run . loli - do

  get "/" - do
    -- something for a get request

  post "/" - do
    -- for a post request

  put "/" - do
    -- put ..

  delete "/" - do
    -- ..

get "/say/:user/:message" - do
  text . show =<< captures

-- /say/jinjing/hello will output
-- [("user","jinjing"),("message","hello")]

-- public serve, only allows `./src`
public (Just ".") ["/src"]

-- treat .hs extension as text/plain
mime "hs" "text/plain"

-- before takes a function of type (Env -> IO Env)
before - \e -> do
  putStrLn "before called"
  return e

-- after takes that of type (Response -> IO Response)
after return

-- note both etag and lambda middleware are removed ... for somce ghc 7.0 compatability ><

import Hack.Contrib.Middleware.ETag
import Hack.Contrib.Middleware.Lambda

middleware etag
middleware lambda

-- in Network.Loli.Engine

loli :: Unit -> Application