Golog - Another logger written in Go

The main golog features are:

• Zero(1) allocations
• Color support (also on windows!)
• Debug mode controllable via environment variable
• Looks good(2)
• Modules thanks to which you know where the logs come from
• Arguments configurable for each log message independently
• Hooks which add specific information to every log message that uses a hook with the same name
• Sentry and Discord integration (via plugins)
• Built-in panic recovery function
• File path with line and stack trace support
• Potential for many integrations and plugins

We also plan to add PostgreSQL (and maybe MongoDB) integration with a dashboard.

(1) - IT IS zero allocation logger if you don't use many arguments or specific formatting. Internally it does not make any allocation.

(2) - We don't provide any way to change message style or colors

Most methods and types are not documented as they are pretty straightforward - their names say everything.

Installation

Just run go get github.com/BOOMfinity/golog in your project directory

Plugins

Sentry.io integration - Repository - go get github.com/BOOMfinity/golog-sentry

Discord webhook integration - Repository - go get github.com/BOOMfinity/golog-discord (Currently not available as our Discord library is private)

Examples

Simple "Hello World!" message:

package main

import "github.com/BOOMfinity/golog"

func main() {
	log := golog.New("main")
	log.Info().Send("Hello World!")
}

Simple http server log message:

package main

import "github.com/BOOMfinity/golog"

func main() {
	log := golog.New("web-server")
	userIP := "127.0.0.1"
	reqPath := "/users/test-1"
	reqMethod := "GET"
	log.Info().Add("%v %v", reqMethod, reqPath).Any(userIP).Send("new request!")
}

Modules example

package main

import "github.com/BOOMfinity/golog"

func main() {
	log := golog.New("cmd").SetLevel(golog.LevelDebug)
	log.Info().Send("Ready!")
	apiLog := log.Module("api")
	apiLog.Warn().Send("Debug mode is enabled")
	usersLog := apiLog.Module("users")
	usersLog.Debug().Send("Nickname changed")
}

Errors and panics

package main

import "github.com/BOOMfinity/golog"

func main() {
	log := golog.New("cmd")
	defer log.Recover()
	log.Error().FileWithLine().Stack().Send("error message with stack and file")
	x() // panic will be caught by log.Recover
}

func x() {
	panic("fatal error D:")
}

Internal environment variables

There are two special, global environment variables that can be used with golog.

• GOLOG_DEBUG or GDEBUG = on | true - If set to "true" it will globally enable "debug" level for all instances in application.

• GOLOG_COLORS_DISABLED = on | yes | true - If for some reason you want to disable colors, set this env variable to "true".