Structured logging with context support based on slog.

Install

go get github.com/unemil/logger

Compatibility: go >= 1.21

Usage

export LOG_LEVEL=LEVEL
export LOG_FORMAT=FORMAT
export LOG_FILE=FILE

Levels

• TRACE
• DEBUG
• INFO
• WARN
• ERROR
• FATAL
• PANIC

Default: INFO

Formats

• TEXT
• JSON

Default: TEXT

Example

package main

import (
	"context"
	"errors"
	"net/http"

	"github.com/unemil/logger"
)

func main() {
	logger.Errorf(
		logger.Context(context.Background(), "username", "unemil"),
		"test",
		errors.New(http.StatusText(http.StatusUnauthorized)),
		logger.Field("status", http.StatusUnauthorized),
	)

	// time=2024-07-25T13:25:53+03:00 level=ERROR source=test/main.go:12 msg=test error=Unauthorized status=401 username=unemil
}