gin pprof middleware

Package pprof serves via its HTTP server runtime profiling data in the format expected by the pprof visualization tool.

Download and install it:

$ go get github.com/gin-contrib/pprof

Import it in your code:

import "github.com/gin-contrib/pprof"

package main

import (
	"github.com/gin-contrib/pprof"
	"github.com/gin-gonic/gin"
)

func main() {
  router := gin.Default()
  pprof.Register(router, nil)
  router.Run(":8080")
}

func main() {
	router := gin.Default()
	pprof.Register(router, &pprof.Options{
		// default is "debug/pprof"
		RoutePrefix: "debug/pprof",
	})
	router.Run(":8080")
}

Then use the pprof tool to look at the heap profile:

go tool pprof http://localhost:8080/debug/pprof/heap

Or to look at a 30-second CPU profile:

go tool pprof http://localhost:8080/debug/pprof/profile

Or to look at the goroutine blocking profile, after calling runtime.SetBlockProfileRate in your program:

go tool pprof http://localhost:8080/debug/pprof/block

Or to collect a 5-second execution trace:

wget http://localhost:8080/debug/pprof/trace?seconds=5