Fgprof

fgprof support for Fiber.

Compatible with Fiber v3.

Go version support

We only support the latest two versions of Go. Visit https://go.dev/doc/devel/release for more information.

Install

Using fgprof to profiling your Fiber app.

go get -u github.com/gofiber/fiber/v3
go get -u github.com/gofiber/contrib/v3/fgprof

[!WARNING] The profiler shows the stacks of every goroutine and each profile costs CPU and memory while it runs. Do not expose it to untrusted clients: serve it on an internal listener, or put authentication in front of it (for example with Next or a middleware on Prefix).

Config

Property	Type	Description	Default
Next	func(c fiber.Ctx) bool	A function to skip this middleware when returned true.	nil
Prefix	string.	Prefix defines a URL prefix added before "/debug/fgprof". Note that it should start with (but not end with) a slash. Example: "/federated-fiber"	""
MaxConcurrent	int	The number of profiles that may run at the same time. A request beyond it is answered with 503 Service Unavailable.	4
MaxSeconds	int	The longest profile a request may ask for with the seconds parameter (30 when absent). A longer one is answered with 400 Bad Request.	60

Example

package main

import (
    "log"

    "github.com/gofiber/contrib/v3/fgprof"
    "github.com/gofiber/fiber/v3"
)

func main() {
    app := fiber.New()
    app.Use(fgprof.New())
    app.Get("/", func(c fiber.Ctx) error {
        return c.SendString("OK")
    })
    log.Fatal(app.Listen(":3000"))
}

go tool pprof -http=:8080 http://localhost:3000/debug/fgprof