Logger effect for the fused-effects library.

A logger effect for the `fused-effects` library based on the `monad-logger` api.

fused-effects-logger

A logger effect for the fused-effects library, based on the monad-logger API.

Usage

In addition to fused-effects-logger, you most probably want to add monad-logger as well in order to use its logging functions.

Here is a simple example to start running a program that logs to stderr:

{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE TemplateHaskell #-}

module Main (main) where

import Control.Carrier.Lift (runM)
import Control.Carrier.Logger.IO (runStderrLoggerIO)
import Control.Effect.Lift (sendM)
import Control.Monad.Logger (logInfo)

main :: IO ()
main = runM . runStderrLoggerIO $ do
  $(logInfo) "hello from fused-effects-logger"
  sendM (print 42)

It should produce the output:

[Info] hello from fused-effects-logger @(test-logger-0.1.0.0-KTuyx50rxPBAwC1EHp8UuV-test-logger-exe:Main app/Main.hs:13:4)
42

Contributing

Please follow the process describe in RELEASE.md to release new versions to Hackage.