monad-logger-prefix

Add prefixes to your monad-logger output https://github.com/parsonsmatt/monad-logger-prefix#readme

LTS Haskell 14.17:	0.1.11
Stackage Nightly 2019-12-13:	0.1.11
Latest on Hackage:	0.1.11

See all snapshots monad-logger-prefix appears in

LicenseRef-Apache licensed and maintained by Matthew Parsons

Module documentation for 0.1.11

This version can be pinned in stack with:monad-logger-prefix-0.1.11@sha256:442cc0eea8f1ed6a38fcc6ba48264983d21a757b446e382dfe94ed51aab0bd38,2080

Control
- Control.Monad
  - Control.Monad.Logger
    - Control.Monad.Logger.Prefix

monad-logger-prefix

This package provides an easy way to add prefixes to any MonadLogger. Here’s a brief example:

{-# LANGUAGE TemplateHaskell #-}

import Control.Monad.Logger
import Control.Monad.Logger.Prefix

main :: IO ()
main = runStdoutLoggingT $ do
    $(logDebug) "This one has no prefix."

    "foo" `prefixLogs` do
        $(logDebug) "This one has a [foo] prefix."

        "bar" `prefixLogs` do
            $(logDebug) "This one has both [foo] and [bar] prefixes."

The package includes a benchmark demonstrating that there is no performance difference with ordinary logging.

Changes

Change log

0.1.11

Relaxed upper bound on transformers

0.1.10

Relaxed upper bound on exceptions from 0.10 to 0.11

0.1.8

Relaxed upper bound on exceptions from 0.9 to 0.10

0.1.7

Relaxed upper bound on conduit

Depends on 9 packages(full list with versions):

exceptions, monad-control, monad-logger, mtl, resourcet, text, transformers, transformers-base