cached-json-file-0.1.1: Locally cache a json file obtained by http

Safe Haskell	None
Language	Haskell2010

System.Cached.JSON

Synopsis

getCachedJSON :: (FromJSON a, ToJSON a) => String -> FilePath -> String -> NominalDiffTime -> IO a
getCachedJSONQuery :: (FromJSON a, ToJSON a) => String -> FilePath -> IO a -> NominalDiffTime -> IO a
lookupKey :: FromJSON a => Text -> Object -> Maybe a

Documentation

getCachedJSON Source #

Arguments

:: (FromJSON a, ToJSON a)
=> String	subdirectory/program name
-> FilePath	filename
-> String	json url
-> NominalDiffTime	cache duration (minutes)
-> IO a

If the local cached json file is new enough then use it, otherwise refresh from the remote url.

getCachedJSONQuery Source #

Arguments

:: (FromJSON a, ToJSON a)
=> String	program name
-> FilePath	filename
-> IO a	http query
-> NominalDiffTime	cache duration (minutes)
-> IO a

Similar to getCachedJSON but takes an IO procedure that fetches the remote json data.

lookupKey :: FromJSON a => Text -> Object -> Maybe a #

Look up key in object