Bird

A sinatra-ish web framework written in haskell, riding on top of Hack.

Why?

Sinatra has a beautiful, simple, elegant syntax, but it's essentially an attempt to bring pattern matching to a language never intended for pattern matching. Why not attempt something similar in a language with not just beautiful pattern matching, but with all the declarative bells and whistles: lazy evaluation, first-class functions, currying, polymorphism?

Install

λ cabal update && cabal install bird

Note: make sure $HOME/.cabal/bin is in your PATH.

Create an app

λ bird MyApp 

Compile your app

λ cd MyApp
λ bird nest 

Start your app (runs on port 3000)

λ bird fly

Try it out

λ curl http://localhost:3000
  Hello, Bird!

λ curl http://localhost:3000?name=moonmaster9000
  Hello, moonmaster9000

Improvise!

-- MyApp.hs
module MyApp where
import Bird
import Data.String.Utils

get, post, put, delete :: Path -> BirdRouter ()
get [] = do
  name <- param "name"
  body $ "Hello, " ++ (maybe "Bird!" id name)

get ("howdy":xs) = body $ "Howdy " ++ (join ", " xs) ++ "!"

get ["droids"] = do
  body "Nothing to see here. Move along."
  status 404

get _ = status 404
post _ = status 404
put _ = status 404
delete _ = status 404

now:

λ curl http://localhost:3000/howdy/there/pardna
    Howdy there, pardna!

λ curl http://localhost:3000/droids
    Nothing to see here. Move along.

Notes

This project is still in its infancy. Coming features:

• logging
• support for sending files