Fiberzerolog

Zerolog logging support for Fiber.

Note: Requires Go 1.18 and above

Install

This middleware supports Fiber v2.

go get -u github.com/gofiber/fiber/v2
go get -u github.com/gofiber/contrib/fiberzerolog
go get -u github.com/rs/zerolog/log

Signature

fiberzerolog.New(config ...fiberzerolog.Config) fiber.Handler

Config

Property	Type	Description	Default
Next	func(*Ctx) bool	Define a function to skip this middleware when returned true	nil
Logger	*zerolog.Logger	Add custom zerolog logger.	zerolog.New(os.Stderr).With().Timestamp().Logger()
GetLogger	func(*fiber.Ctx) zerolog.Logger	Get custom zerolog logger, if it's defined the returned logger will replace the Logger value.	nil
Fields	[]string	Add fields what you want see.	[]string{"latency", "status", "method", "url", "error"}
WrapHeaders	bool	Wrap headers to dictionary. If false: {"method":"POST", "header-key":"header value"} If true: {"method":"POST", "reqHeaders": {"header-key":"header value"}}	false
FieldsSnakeCase	bool	Use snake case for fields: FieldResBody, FieldQueryParams, FieldBytesReceived, FieldBytesSent, FieldRequestId, FieldReqHeaders, FieldResHeaders. If false: {"method":"POST", "resBody":"v", "queryParams":"v"} If true: {"method":"POST", "res_body":"v", "query_params":"v"}	false
Messages	[]string	Custom response messages.	[]string{"Server error", "Client error", "Success"}
Levels	[]zerolog.Level	Custom response levels.	[]zerolog.Level{zerolog.ErrorLevel, zerolog.WarnLevel, zerolog.InfoLevel}
SkipURIs	[]string	Skip logging these URI.	[]string{}
GetResBody	func(c *fiber.Ctx) []byte	Define a function to get response body when return non-nil. eg: When use compress middleware, resBody is unreadable. you can set GetResBody func to get readable resBody.	nil

Example

package main

import (
    "github.com/gofiber/fiber/v2"
    "github.com/gofiber/contrib/fiberzerolog"
    "github.com/rs/zerolog"
)

func main() {
    app := fiber.New()
    logger := zerolog.New(os.Stderr).With().Timestamp().Logger()

    app.Use(fiberzerolog.New(fiberzerolog.Config{
        Logger: &logger,
    }))

    app.Get("/", func (c *fiber.Ctx) error {
        return c.SendString("Hello, World!")
    })

    if err := app.Listen(":3000"); err != nil {
        logger.Fatal().Err(err).Msg("Fiber app error")
    }
}