welshy: Haskell web framework (because Scotty had trouble yodeling)

[ library, mit, web ] [ Propose Tags ]

A Haskell web framework heavily influenced by the excellent Scotty, which was in turn influenced by Ruby's Sinatra.

Welshy strives to make it easier to do error handling without overly complicating the control flow. An example:

{-# LANGUAGE OverloadedStrings #-}
import Control.Applicative
import Control.Monad
import qualified Data.Text.Lazy as T
import Network.HTTP.Types
import Web.Welshy

fibs :: [Int]
fibs = 0 : 1 : zipWith (+) fibs (tail fibs)

main :: IO ()
main = welshy 3000 $ do
    get "/fibs" $ do
        offset <- queryParam "offset" <|> return 0
        length <- queryParam "length"

        when (offset < 0 || length < 0)
             (halt $ status badRequest400)

        when (offset + length > 1000)
             (halt $ status requestedRangeNotSatisfiable416)

        let result = take length $ drop offset fibs
        text $ T.pack $ show result

Some of the features demonstrated here:

Versions 0.1.0.0
Dependencies aeson (==0.6.*), base (>=4.6 && <4.8), blaze-builder (==0.3.*), bytestring (==0.10.*), conduit (==1.0.*), http-types (==0.8.*), lifted-base (==0.2.*), resourcet (==0.4.*), text (==0.11.*), transformers (==0.3.*), unordered-containers (==0.2.*), wai (==1.4.*), warp (==1.3.*) [details]
License MIT
Copyright (c) 2013 Michael Schröder
Author Michael Schröder
Maintainer mcschroeder@gmail.com
Revised Revision 1 made by MichaelSchroeder at Sun Feb 22 21:42:42 UTC 2015
Category Web
Home page https://github.com/mcschroeder/welshy
Bug tracker https://github.com/mcschroeder/welshy/issues
Source repo head: git clone https://github.com/mcschroeder/welshy.git
Uploaded by MichaelSchroeder at Mon Sep 30 18:12:12 UTC 2013
Distributions NixOS:0.1.0.0
Downloads 603 total (9 in the last 30 days)
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Status Docs available [build log]
Successful builds reported [all 1 reports]
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