Yam.Config

Documentation

class Config c where

Minimal complete definition

fetch, merge, from

Methods

fetch :: Text -> c -> Either String c

merge :: [c] -> c

from :: (String, String) -> c

fromEnv :: [(String, String)] -> c

fromCommandLine :: [String] -> c

Instances

Config Value

Methods

fetch :: Text -> Value -> Either String Value

merge :: [Value] -> Value

from :: (String, String) -> Value

fromEnv :: [(String, String)] -> Value

fromCommandLine :: [String] -> Value

class (Monad m, Config c) => HasValue m c v where

Minimal complete definition

parse

Methods

parse :: c -> m (Either String v)

getValue :: Text -> c -> m (Either String v)

getValueOrDef :: v -> Text -> c -> m v

requireValue :: Text -> c -> m v

Instances

(Monad m, FromJSON v) => HasValue m Value v

Methods

parse :: Value -> m (Either String v)

getValue :: Text -> Value -> m (Either String v)

getValueOrDef :: v -> Text -> Value -> m v

requireValue :: Text -> Value -> m v

defaultConfig :: Config c => IO c