Safe Haskell	None
Language	Haskell2010

Servant.Server.Internal.DelayedIO

Synopsis

newtype DelayedIO a = DelayedIO {
- runDelayedIO' :: ReaderT Request ( ResourceT ( RouteResultT IO )) a
}
liftRouteResult :: RouteResult a -> DelayedIO a
runDelayedIO :: DelayedIO a -> Request -> ResourceT IO ( RouteResult a)
delayedFail :: ServerError -> DelayedIO a
delayedFailFatal :: ServerError -> DelayedIO a
withRequest :: ( Request -> DelayedIO a) -> DelayedIO a

Documentation

newtype DelayedIO a Source #

Computations used in a Delayed can depend on the incoming Request , may perform IO , and result in a RouteResult , meaning they can either succeed, fail (with the possibility to recover), or fail fatally.

Constructors

DelayedIO
Fields runDelayedIO' :: ReaderT Request ( ResourceT ( RouteResultT IO )) a

Instances

Instances details

Monad DelayedIO Source #
Instance details Defined in Servant.Server.Internal.DelayedIO Methods (>>=) :: DelayedIO a -> (a -> DelayedIO b) -> DelayedIO b Source # (>>) :: DelayedIO a -> DelayedIO b -> DelayedIO b Source # return :: a -> DelayedIO a Source #
Functor DelayedIO Source #
Instance details Defined in Servant.Server.Internal.DelayedIO Methods fmap :: (a -> b) -> DelayedIO a -> DelayedIO b Source # (<$) :: a -> DelayedIO b -> DelayedIO a Source #
Applicative DelayedIO Source #
Instance details Defined in Servant.Server.Internal.DelayedIO Methods pure :: a -> DelayedIO a Source # (<>) :: DelayedIO (a -> b) -> DelayedIO a -> DelayedIO b Source # liftA2 :: (a -> b -> c) -> DelayedIO a -> DelayedIO b -> DelayedIO c Source # (>) :: DelayedIO a -> DelayedIO b -> DelayedIO b Source # (<*) :: DelayedIO a -> DelayedIO b -> DelayedIO a Source #
MonadIO DelayedIO Source #
Instance details Defined in Servant.Server.Internal.DelayedIO Methods liftIO :: IO a -> DelayedIO a Source #
MonadThrow DelayedIO Source #
Instance details Defined in Servant.Server.Internal.DelayedIO Methods throwM :: Exception e => e -> DelayedIO a Source #
MonadResource DelayedIO Source #
Instance details Defined in Servant.Server.Internal.DelayedIO Methods liftResourceT :: ResourceT IO a -> DelayedIO a Source #
MonadBase IO DelayedIO Source #
Instance details Defined in Servant.Server.Internal.DelayedIO Methods liftBase :: IO α -> DelayedIO α Source #
MonadBaseControl IO DelayedIO Source #
Instance details Defined in Servant.Server.Internal.DelayedIO Associated Types type StM DelayedIO a Source # Methods liftBaseWith :: ( RunInBase DelayedIO IO -> IO a) -> DelayedIO a Source # restoreM :: StM DelayedIO a -> DelayedIO a Source #
MonadReader Request DelayedIO Source #
Instance details Defined in Servant.Server.Internal.DelayedIO Methods ask :: DelayedIO Request Source # local :: ( Request -> Request ) -> DelayedIO a -> DelayedIO a Source # reader :: ( Request -> a) -> DelayedIO a Source #
type StM DelayedIO a Source #
Instance details Defined in Servant.Server.Internal.DelayedIO type StM DelayedIO a = RouteResult a

liftRouteResult :: RouteResult a -> DelayedIO a Source #

runDelayedIO :: DelayedIO a -> Request -> ResourceT IO ( RouteResult a) Source #

delayedFail :: ServerError -> DelayedIO a Source #

Fail with the option to recover.

delayedFailFatal :: ServerError -> DelayedIO a Source #

Fail fatally, i.e., without any option to recover.

withRequest :: ( Request -> DelayedIO a) -> DelayedIO a Source #

Gain access to the incoming request.