fiberprometheus

Prometheus middleware for gofiber.

Forked from ansrivas

Please feel free to open any issue with possible enhancements or bugs

Note: Requires Go 1.22 and above

Following metrics are available by default:

http_requests_total
http_request_duration_seconds
http_requests_in_progress_total
http_cache_results

Install v3

go get -u github.com/gofiber/fiber/v3
go get -u github.com/FKouhai/fiberprometheus/v3

Example using v3

package main

import (
	"github.com/FKouhai/fiberprometheus/v3"
	"github.com/gofiber/fiber/v3"
)

func main() {
  app := fiber.New()

  // This here will appear as a label, one can also use
  // fiberprometheus.NewWith(servicename, namespace, subsystem )
  // or
  // labels := map[string]string{"custom_label1":"custom_value1", "custom_label2":"custom_value2"}
  // fiberprometheus.NewWithLabels(labels, namespace, subsystem )
  prom := prometheus.New("my-service-name")
  prom.RegisterAt(&app, "/metrics")
  app.Use(prom.Middleware)

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

  app.Post("/some", func(c *fiber.Ctx) error {
    return c.SendString("Welcome!")
  })

  app.Listen(":3000")
}

Result

• Hit the default url at http://localhost:3000
• Navigate to http://localhost:3000/metrics

Grafana Board

• https://grafana.com/grafana/dashboards/14331