Created
February 5, 2023 04:20
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Logging rich messages in co-log
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| {-# LANGUAGE OverloadedStrings #-} | |
| import Colog | |
| import Control.Monad.IO.Class (MonadIO) | |
| import Data.Text (Text) | |
| foo :: (WithLog env Message m, MonadIO m) => m () | |
| foo = do | |
| logWarning "Hello" | |
| logWarning "World" | |
| logTextBoth :: LogAction IO Text | |
| logTextBoth = logTextStdout <> logTextStderr | |
| main :: IO () | |
| main = do | |
| let action = upgradeMessageAction defaultFieldMap $ cmapM fmtRichMessageDefault logTextBoth | |
| usingLoggerT action foo |
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