pprof

pprof Middleware

What it does

Registers protected Go profiling endpoints for CPU, heap, goroutine, mutex, block, and trace diagnostics.

How to implement

package main

import (
	"github.com/oarkflow/fh"
	"github.com/oarkflow/fh/mw/pprof"
)

func main() {
	app := fh.New()
	pprof.Enable(app, pprof.Config{
		Prefix: "/_fh/debug/pprof",
		Auth: pprof.StaticToken("X-Admin-Token", "change-me"),
	})

	app.Get("/", func(c fh.Ctx) error { return c.Status(fh.StatusOK).SendString("ok") })
}

Impact

No request-path overhead except for the registered debug endpoints. Profiling itself can add overhead while active.

Ordering guidance

Register separately from public routes. Keep behind admin authentication and private networking.

Production considerations

Never expose pprof publicly. Use temporary access during incidents and audit access.