log-base
Structured logging solution (base package)
| LTS Haskell 21.13: | 0.12.0.1 |
| Stackage Nightly 2023-09-27: | 0.12.0.1 |
| Latest on Hackage: | 0.12.0.1 |
This version can be pinned in stack with:
log-base-0.12.0.1@sha256:cd22a5277c58117aef574a846afd6cad17dfec3e505da6c03662246fdd9ee7b0,2752Module documentation for 0.12.0.1
- Log
- Log.Backend
- Log.Class
- Log.Data
- Log.Internal
- Log.Internal.Aeson
- Log.Internal.Logger
- Log.Logger
- Log.Monad
Depends on 16 packages(full list with versions):
Used by 1 package in nightly-2023-09-27(full list with versions):
log
A set of libraries that provide a way to record structured log messages with multiple backends.
Supported backends:
- Standard output via
log-base. - Elasticsearch via
log-elasticsearch. - PostgreSQL via
log-postgres.
Example
A sample usage for logging to both standard output and Elasticsearch:
{-# LANGUAGE OverloadedStrings #-}
module Main where
import Log
import Log.Backend.ElasticSearch
import Log.Backend.StandardOutput
main :: IO ()
main = do
let config = defaultElasticSearchConfig
{ esServer = "http://localhost:9200"
, esIndex = "logs"
}
withStdOutLogger $ \stdoutLogger -> do
withElasticSearchLogger config $ \esLogger -> do
runLogT "main" (stdoutLogger <> esLogger) defaultLogLevel $ do
logInfo_ "Hi there"