Created
February 25, 2014 21:14
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restclint-sample
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{-# LANGUAGE OverloadedStrings #-} | |
import Data.Aeson | |
import qualified Data.Text as T | |
import qualified Data.ByteString.Char8 as B | |
import qualified Data.ByteString.Lazy.Char8 as L | |
import Network.HTTP | |
import Network.HTTP.Base | |
import Network.URI | |
import Control.Applicative | |
import Control.Monad | |
import qualified Data.HashMap.Strict as M | |
data OSAuth= | |
OSRAuthP{ | |
osaUsername :: T.Text | |
,osaPassword :: T.Text | |
,osaTenantName :: Maybe T.Text | |
,osaTenantId :: Maybe T.Text | |
}| | |
OSRAuthT{ | |
osaToken :: T.Text | |
,osaTenantName :: Maybe T.Text | |
,osaTenantId :: Maybe T.Text | |
} deriving (Show,Read) | |
instance FromJSON OSAuth where | |
parseJSON (Object v) = do | |
case (M.lookup "auth" v) of | |
Just (Object v')->do | |
case (M.lookup "passwordCredentials" v') of | |
Just (Object v'')->do | |
case (M.lookup "token" v'') of | |
Just _-> | |
OSRAuthT <$> | |
v'' .: "token" <*> | |
v' .:? "tenantName" <*> | |
v' .:? "tenantId" | |
_ -> | |
OSRAuthP <$> | |
v' .: "username" <*> | |
v' .: "password" <*> | |
v' .:? "tenantName" <*> | |
v' .:? "tenantId" | |
_ -> mzero | |
_ -> mzero | |
parseJSON _ = mzero | |
instance ToJSON OSAuth where | |
toJSON (OSRAuthP name password tenantName tenantId) = | |
object [ | |
"auth" .= | |
object [ | |
"tenantName" .= tenantName, | |
"teantnId" .= tenantId, | |
"passwordCredentials" .= | |
object [ | |
"username" .= name, | |
"password" .= password | |
] | |
] | |
] | |
rest'::(ToJSON a)=>RequestMethod->T.Text->a->IO L.ByteString | |
rest' mth url dat'=do | |
let (Just url')=parseURI $ T.unpack url | |
let dat=encode dat' | |
let len =L.length dat | |
let r = Request { rqURI = url' | |
, rqMethod = mth | |
, rqHeaders = [ mkHeader HdrContentType "application/json" | |
, mkHeader HdrAccept "application/json" | |
, mkHeader HdrContentLength $ show $ len | |
] | |
, rqBody = dat | |
} | |
res <- simpleHTTP r | |
body <- getResponseBody res | |
return body | |
rest::(ToJSON a,FromJSON b)=>RequestMethod->T.Text->a->IO (Maybe b) | |
rest mth url dat'=do | |
body<-rest' mth url dat' | |
return (decode body) | |
doAuth::T.Text->T.Text->T.Text->IO (Maybe OSAuth) | |
doAuth url id pass=do | |
let dat=OSRAuthP id pass Nothing Nothing | |
body <- rest POST url dat | |
return body | |
main=do | |
let dat=("raw data"::String) | |
let (Just t)=(decode $ "{\"auth\":{\"username\":\"hello\"}}" ) :: Maybe OSAuth | |
print $ t | |
print $ encode t | |
return () |
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