go-log

Opinionated Go package for doing minimal structured logging and prefixing of log messages with Emoji for easier filtering. It's possible this package will become irrelevant if and when Go slog package because part of "core". Until then it does what I need.

Documentation

Example

import (
	"log"

	aa_log "github.com/aaronland/go-log/v2"
)	

func main(){

	logger := log.Default()

	aa_log.SetMinLevelWithPrefix(aa_log.WARNING_PREFIX)

	// No output
	aa_log.Debug(logger, "This is a test")

	aa_log.UnsetMinLevel()

	// prints "💬 Hello, world"
	aa_log.Info(logger, "Hello, %w", "world")
	
	// prints "🪵 This is a second test"
	aa_log.Debug(logger, "This is a second test")

	// prints "🧯 This is an error"
	aa_log.Warning(logger, fmt.Errorf("This is an error"))

	// Emits errors using the default Go *log.Logger instance
	// prints "{YYYY}/{MM}/{DD} {HH}:{MM}:{SS} 🧯 This is a second error"
	aa_log.Warning(fmt.Errorf("This is a second error"))
}

Prefixes

Log level	Prefix
debug	🪵
info	💬
warning	🧯
error	🔥
fatal	💥