Prometheus

The default prometheus monitoring extension is available in monitor-prometheus, providing:

• Server throughput monitoring
• Request latency monitoring

The default tags include: HTTP Method, statusCode. Requests related information are stored in RequestContext, and this variable can be accessed after monitoring metrics scraped. You can implement and extend the monitoring functions according to your own requirements. Usage example:

Server

import (
  "context"

  "github.com/cloudwego/hertz/pkg/app"
  "github.com/cloudwego/hertz/pkg/app/server"
  "github.com/cloudwego/hertz/pkg/common/utils"
  "github.com/hertz-contrib/monitor-prometheus"
  )

func main() {
    ···
    h := server.Default(server.WithTracer(prometheus.NewServerTracer(":9091", "/hertz")))
    h.GET("/ping", func(ctx context.Context, c *app.RequestContext) {
      c.JSON(200, utils.H{"ping": "pong"})
    })
    h.Spin()
    ···
}

Currently, Client doesn’t expose Tracer interface, but monitoring capabilities can be implemented through middleware.

Related Repository https://github.com/hertz-contrib/monitor-prometheus