Prometheus middleware for gofiber.
Note: Requires Go 1.21 and above
Following metrics are available by default:
http_requests_total
http_request_duration_seconds
http_requests_in_progress_total
http_cache_results
go get -u github.com/gofiber/fiber/v2
go get -u github.com/ansrivas/fiberprometheus/v2
package main
import (
"github.com/ansrivas/fiberprometheus/v2"
"github.com/gofiber/fiber/v2"
)
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 )
prometheus := fiberprometheus.New("my-service-name")
prometheus.RegisterAt(app, "/metrics")
prometheus.SetSkipPaths([]string{"/ping"}) // Optional: Remove some paths from metrics
app.Use(prometheus.Middleware)
app.Get("/", func(c *fiber.Ctx) error {
return c.SendString("Hello World")
})
app.Get("/ping", func(c *fiber.Ctx) error {
return c.SendString("pong")
})
app.Post("/some", func(c *fiber.Ctx) error {
return c.SendString("Welcome!")
})
app.Listen(":3000")
}- Hit the default url at http://localhost:3000
- Navigate to http://localhost:3000/metrics