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Pure logger typeclass and monad transformer
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Control/Monad Remove the either dependency. Nov 25, 2017
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Setup.hs Initial revision. Feb 22, 2014


Pure logger typeclass and monad transformer

What is monad-journal?

monad-journal is a simple but powerful answer to the logging problem. A lot of people think that “logging” is IO-related, while it’s not. Everyone must know MonadWriter , which is perfect to log things in pure computations. The issue is that you can’t access those “things” inside the computation itself. monad-journal exposes a cool typeclass called MonadJournal that enables you to do so.

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