package main

import (
	"fmt"
	"log"
	"math/rand"
	"net/http"
	"time"
)

func fakeHandler(w http.ResponseWriter, req *http.Request) {
	n := 200 + rand.Intn(600) // 200 - 800
	time.Sleep(time.Duration(n) * time.Millisecond)

	w.Header().Set("Content-Type", "application/json")
	fmt.Fprintf(w, `{"time": %d}`, n)
	log.Printf("Response time: %dms", n)
}

func main() {
	rand.Seed(time.Now().UnixNano())

	http.HandleFunc("/", fakeHandler)

	http.ListenAndServe(":8090", nil)
}