servant/servant-examples/tutorial/T10.hs
2016-02-06 11:39:24 -07:00

71 lines
2 KiB
Haskell

{-# LANGUAGE DataKinds #-}
{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE MultiParamTypeClasses #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE TypeFamilies #-}
{-# LANGUAGE TypeOperators #-}
module T10 where
import Data.ByteString.Lazy (ByteString)
import Data.Text.Lazy (pack)
import Data.Text.Lazy.Encoding (encodeUtf8)
import Network.HTTP.Types
import Network.Wai
import Servant
import Servant.Docs
import qualified T3
type DocsAPI = T3.API :<|> Raw IO Application
instance ToCapture (Capture "x" Int) where
toCapture _ = DocCapture "x" "(integer) position on the x axis"
instance ToCapture (Capture "y" Int) where
toCapture _ = DocCapture "y" "(integer) position on the y axis"
instance ToSample T3.Position where
toSamples _ = singleSample (T3.Position 3 14)
instance ToParam (QueryParam "name" String) where
toParam _ =
DocQueryParam "name"
["Alp", "John Doe", "..."]
"Name of the person to say hello to."
Normal
instance ToSample T3.HelloMessage where
toSamples _ =
[ ("When a value is provided for 'name'", T3.HelloMessage "Hello, Alp")
, ("When 'name' is not specified", T3.HelloMessage "Hello, anonymous coward")
]
ci :: T3.ClientInfo
ci = T3.ClientInfo "Alp" "alp@foo.com" 26 ["haskell", "mathematics"]
instance ToSample T3.ClientInfo where
toSamples _ = singleSample ci
instance ToSample T3.Email where
toSamples _ = singleSample (T3.emailForClient ci)
api :: Proxy DocsAPI
api = Proxy
docsBS :: ByteString
docsBS = encodeUtf8
. pack
. markdown
$ docsWithIntros [intro] T3.api
where intro = DocIntro "Welcome" ["This is our super webservice's API.", "Enjoy!"]
server :: Server DocsAPI
server = T3.server :<|> serveDocs
where serveDocs = Raw (\_ respond ->
respond $ responseLBS ok200 [plain] docsBS)
plain = ("Content-Type", "text/plain")
app :: Application
app = serve api EmptyConfig server