polish up cabal file, add a README
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README.md
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# servant
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[![Build Status](https://secure.travis-ci.org/haskell-servant/servant.svg)](http://travis-ci.org/haskell-servant/servant)
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![servant](https://raw.githubusercontent.com/haskell-servant/servant/master/servant.png)
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These libraries provides a family of combinators to define webservices and automatically generate the documentation and client-side querying functions for each endpoint.
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In order to minimize the dependencies depending on your needs, we provide these features under different packages.
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- `servant`, which contains everything you need to *declare* a webservice and *implement* an HTTP server with handlers for each endpoint.
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- `servant-client`, which lets you derive automatically Haskell functions that let you query each endpoint of a *servant* webservice.
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- `servant-docs`, which lets you generate API docs for your webservice.
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- `servant-jquery`, which lets you derive Javascript functions (based on jquery) to query your API's endpoints, in the same spirit as `servant-client`.
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## Getting started
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We've written a [Getting Started](http://haskell-servant.github.io/getting-started/) guide that introduces the core types and features of servant. After this article, you should be able to write your first servant webservices, learning the rest from the haddocks' examples.
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## Repositories and Haddocks
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- The core [servant](http://github.com/haskell-servant) package - [docs](http://haskell-servant.github.io/servant/)
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- (Haskell) client-side function generation with [servant-client](http://github.com/haskell-servant/servant-client) - [docs](http://haskell-servant.github.io/servant-client/)
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- (Javascript) client-side function generation with [servant-jquery](http://github.com/haskell-servant/servant-jquery) - [docs](http://haskell-servant.github.io/servant-jquery/)
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- API docs generation with [servant-docs](http://github.com/haskell-servant/servant-docs) - [docs](http://haskell-servant.github.io/servant-docs/)
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name: servant
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version: 0.2
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-- synopsis:
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-- description:
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synopsis: A family of combinators for defining webservices APIs and serving them
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description:
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A family of combinators for defining webservices APIs and serving them
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.
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You can learn about the basic in <http://haskell-servant.github.io/getting-started/ the getting started> guide.
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.
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Here's a runnable example, with comments that defines a dummy API and
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implements a webserver that serves this API. You can find it <https://github.com/haskell-servant/servant/blob/master/example/greet.hs here> too.
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.
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> {-# LANGUAGE DataKinds #-}
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> {-# LANGUAGE PolyKinds #-}
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> {-# LANGUAGE TypeFamilies #-}
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> {-# LANGUAGE DeriveGeneric #-}
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> {-# LANGUAGE TypeOperators #-}
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> {-# LANGUAGE OverloadedStrings #-}
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>
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> import Data.Aeson
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> import Data.Monoid
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> import Data.Proxy
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> import Data.Text
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> import GHC.Generics
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> import Network.Wai
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> import Network.Wai.Handler.Warp
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>
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> import Servant
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>
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> -- * Example
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>
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> -- | A greet message data type
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> newtype Greet = Greet { msg :: Text }
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> deriving (Generic, Show)
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>
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> instance FromJSON Greet
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> instance ToJSON Greet
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>
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> -- API specification
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> type TestApi =
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> -- GET /hello/:name?capital={true, false}
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-- returns a Greet as JSON
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> "hello" :> Capture "name" Text :> QueryParam "capital" Bool :> Get Greet
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>
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> -- POST /greet with a Greet as JSON in the request body,
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> -- returns a Greet as JSON
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> :<|> "greet" :> ReqBody Greet :> Post Greet
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>
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> -- DELETE /greet/:greetid
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> :<|> "greet" :> Capture "greetid" Text :> Delete
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>
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> testApi :: Proxy TestApi
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> testApi = Proxy
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>
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> -- Server-side handlers.
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> --
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> -- There's one handler per endpoint, which, just like in the type
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> -- that represents the API, are glued together using :<|>.
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> --
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> -- Each handler runs in the 'EitherT (Int, String) IO' monad.
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> server :: Server TestApi
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> server = helloH :<|> postGreetH :<|> deleteGreetH
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>
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> where helloH name Nothing = helloH name (Just False)
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> helloH name (Just False) = return . Greet $ "Hello, " <> name
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> helloH name (Just True) = return . Greet . toUpper $ "Hello, " <> name
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>
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> postGreetH greet = return greet
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>
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> deleteGreetH _ = return ()
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>
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> -- Turn the server into a WAI app. 'serve' is provided by servant,
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> -- more precisely by the Servant.Server module.
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> test :: Application
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> test = serve testApi server
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>
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> -- Run the server.
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> --
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> -- 'run' comes from Network.Wai.Handler.Warp
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> runTestServer :: Port -> IO ()
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> runTestServer port = run port test
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>
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> -- Put this all to work!
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> main :: IO ()
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> main = runTestServer 8001
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homepage: http://haskell-servant.github.io/
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Bug-reports: http://github.com/haskell-servant/servant/issues
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license: BSD3
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license-file: LICENSE
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author: Alp Mestanogullari, Sönke Hahn, Julian K. Arni
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@ -11,6 +93,9 @@ category: Web
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build-type: Simple
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cabal-version: >=1.10
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tested-with: GHC >= 7.8
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source-repository head
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type: git
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location: http://github.com/haskell-servant/servant.git
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library
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exposed-modules:
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@ -52,12 +137,12 @@ library
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, warp
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hs-source-dirs: src
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default-language: Haskell2010
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ghc-options: -O0 -Wall
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ghc-options: -Wall
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executable greet
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main-is: greet.hs
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hs-source-dirs: example
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ghc-options: -O0 -Wall
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ghc-options: -Wall
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default-language: Haskell2010
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build-depends:
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base
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