Logger

An easy way to add structured logs to your project. Based on uber-go/zap.

import (
    "net/http"

    "github.com/pav5000/logger"
    "go.uber.org/zap"
)

const addr = ":8080"

func main() {
    logger.Info("listening http", zap.String("addr", addr))
    err := http.ListenAndServe(addr, nil)
    logger.Fatal("http.ListenAndServe exited", zap.Error(err))
}

Configuration

You can enable dev mode and/or enable adding stacktraces to messages of level Error and above (both are turned off by default).

import (
    "flag"

    "github.com/pav5000/logger"
    "go.uber.org/zap"
)

func main() {
    var debugMode bool
    flag.BoolVar(&debugMode, "debug", false, "Debug mode")
    flag.Parse()

    logger.Init(logger.Settings{
        DevMode: debugMode,
        StackTracedErrors: true,
    })

    // ......
}

In dev mode messages look like this:

2023-02-19T17:39:50.896+0300    INFO    app/main.go:22  listening http  {"addr": ":8080"}

In production mode (default) messages look like this:

{"level":"info","ts":1676818605.186886,"msg":"listening http","addr":":8080"}