server-alternative.go

package main

import "net/http"
import "fmt"
import "log"

var visistsCounter uint64 = 0;

func updateVisitsCounter () uint64 {
    visistsCounter++

    return visistsCounter
}

func main () {
    http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
        var counter uint64 = updateVisitsCounter()

        fmt.Fprintf(w, "Hello, you're visitor #%d", counter)
    })

    log.Fatal(http.ListenAndServe(":8080", nil))
}