README.md

logstream

logstream is simple library for logging

install

go get github.com/snowmerak/logstream/v2

diagram

how to use

package main

import (
	"context"
	"os"
	"os/signal"
	"time"

	"github.com/diy-cloud/logstream"
	"github.com/diy-cloud/logstream/consumer/stdout"
	"github.com/diy-cloud/logstream/log"
	"github.com/diy-cloud/logstream/log/loglevel"
)

func main() {
	// register topic into trie
	logstream.Trie.RegisterTopic("A")
	// register consumer into trie at specific topic
	// if there are several consumers in one topic, send log message to all consumers.
	logstream.Trie.RegisterConsumer("A", stdout.New(context.Background(), loglevel.Debug, nil))
	logstream.Trie.RegisterTopic("B")
	logstream.Trie.RegisterConsumer("B", stdout.New(context.Background(), loglevel.Error, nil))

	logstream.Write("A", log.New(0, loglevel.Debug, "A"))
	logstream.Write("B", log.New(0, loglevel.Debug, "B"))
	logstream.Write("A", log.New(0, loglevel.Info, "A"))
	logstream.Write("B", log.New(0, loglevel.Info, "B"))
	logstream.Write("A", log.New(0, loglevel.Warn, "A"))
	logstream.Write("B", log.New(0, loglevel.Warn, "B"))
	logstream.Write("A", log.New(0, loglevel.Error, "A", log.Rune("rune", '🐶')))
	logstream.Write("B", log.New(0, loglevel.Error, "B", log.Int64("int64", 1)))
	logstream.Write("A", log.New(0, loglevel.Fatal, "A", log.Bool("bool", true), log.Float64("float64", 1.1)))
	logstream.Write("B", log.New(0, loglevel.Fatal, "B", log.Duration("one hour", time.Hour), log.Duration("one minute", time.Minute)))

	sig := make(chan os.Signal, 1)
	signal.Notify(sig, os.Interrupt)
	<-sig
}

2022-02-07T15:58:53+09:00 [DEBUG] A ? 
2022-02-07T15:58:53+09:00 [INFO] A ? 
2022-02-07T15:58:53+09:00 [WARN] A ? 
2022-02-07T15:58:53+09:00 [ERROR] A ? rune='🐶' 
2022-02-07T15:58:53+09:00 [FATAL] A ? bool=true 
2022-02-07T15:58:53+09:00 [ERROR] B ? int64=1 
2022-02-07T15:58:53+09:00 [FATAL] B ? one hour=1h0m0s one minute=1m0s