ServerDummy.go

package main

import (
	"io/ioutil"
	"log"
	"net/http"
	"time"
	"io"
	"flag"
	"strconv"
)

var delay, statusCode, port int
var jsonData,uri string

func main() {
	flag.IntVar(&delay, "delay", 100, "delay in ms")
	flag.StringVar(&jsonData, "response", "{}", "json response")
	flag.IntVar(&statusCode, "code", http.StatusOK, "status code response")
	flag.IntVar(&port, "port", 8080, "Http listen port")
	flag.StringVar(&uri, "uri", "/", "URI to handle")
	flag.Parse()

	http.HandleFunc(uri, service)
	http.ListenAndServe(":" + strconv.Itoa(port), nil)
}

func service(w http.ResponseWriter, r *http.Request) {
	body, _ := ioutil.ReadAll(r.Body)
	log.Println("request: " + string(body))

	w.Header().Set("Content-Type: application/json", "*")

	w.WriteHeader(statusCode)
	time.Sleep(time.Duration(delay) * time.Millisecond)
	io.WriteString(w, jsonData)
	log.Println("response: [" + strconv.Itoa(statusCode) + "]")
	log.Println("response: [" + string(jsonData) + "]")

}