Safe Haskell	Safe
Language	Haskell2010

Conferer.Types

Synopsis

data Provider = Provider {
- getKeyInProvider :: Key -> IO (Maybe Text)
}
newtype Key = Path {
- unKey :: [Text]
}
keyName :: Key -> Text
data Config = Config {
- providers :: [Provider]
}
type ProviderCreator = Config -> IO Provider
class FetchFromConfig a where
- fetch :: Key -> Config -> IO (Either Text a)

Documentation

data Provider Source #

Core interface for library provided configuration, basically consists of getting a Key and informing returning a maybe signaling the value and if it's present in that specific provider

Constructors

Provider
Fields getKeyInProvider :: Key -> IO (Maybe Text)

newtype Key Source #

The way to index Providers, basically list of names that will be adapted to whatever the provider needs

Constructors

Path
Fields unKey :: [Text]

Instances

Eq Key Source #
Instance details Defined in Conferer.Types Methods (==) :: Key -> Key -> Bool # (/=) :: Key -> Key -> Bool #
Ord Key Source #
Instance details Defined in Conferer.Types Methods compare :: Key -> Key -> Ordering # (<) :: Key -> Key -> Bool # (<=) :: Key -> Key -> Bool # (>) :: Key -> Key -> Bool # (>=) :: Key -> Key -> Bool # max :: Key -> Key -> Key # min :: Key -> Key -> Key #
Show Key Source #
Instance details Defined in Conferer.Types Methods showsPrec :: Int -> Key -> ShowS # show :: Key -> String # showList :: [Key] -> ShowS #
IsString Key Source #
Instance details Defined in Conferer.Types Methods fromString :: String -> Key #

keyName :: Key -> Text Source #

Collapse a key into a textual representation

data Config Source #

Core type that the user of this library interact with, in the future it may contain more this besides a list of providers

Constructors

Config
Fields providers :: [Provider]

type ProviderCreator = Config -> IO Provider Source #

The type for creating a provider given a Config, some providers require a certain configuration to be initialized (for example: the redis provider needs connection info to connect to the server)

class FetchFromConfig a where Source #

Main typeclass for defining the way to get values from config, hiding the Text based nature of the Providers

Here an error means that the value couldn't be parsed and that a reasonable default was not possible.

Methods

fetch :: Key -> Config -> IO (Either Text a) Source #

Instances

FetchFromConfig Bool Source #
Instance details Defined in Conferer.FetchFromConfig.Basics Methods fetch :: Key -> Config -> IO (Either Text Bool) Source #
FetchFromConfig Float Source #
Instance details Defined in Conferer.FetchFromConfig.Basics Methods fetch :: Key -> Config -> IO (Either Text Float) Source #
FetchFromConfig Int Source #
Instance details Defined in Conferer.FetchFromConfig.Basics Methods fetch :: Key -> Config -> IO (Either Text Int) Source #
FetchFromConfig Integer Source #
Instance details Defined in Conferer.FetchFromConfig.Basics Methods fetch :: Key -> Config -> IO (Either Text Integer) Source #
FetchFromConfig String Source #
Instance details Defined in Conferer.FetchFromConfig.Basics Methods fetch :: Key -> Config -> IO (Either Text String) Source #
FetchFromConfig ByteString Source #
Instance details Defined in Conferer.FetchFromConfig.Basics Methods fetch :: Key -> Config -> IO (Either Text ByteString) Source #
FetchFromConfig Text Source #
Instance details Defined in Conferer.FetchFromConfig.Basics Methods fetch :: Key -> Config -> IO (Either Text Text) Source #
FetchFromConfig a => FetchFromConfig (Maybe a) Source #
Instance details Defined in Conferer.FetchFromConfig.Basics Methods fetch :: Key -> Config -> IO (Either Text (Maybe a)) Source #