server

package main

import (
	"encoding/json"
	"fmt"
	"log"
	"net/http"
	"sync/atomic"
	"time"
)

var requestCount atomic.Int64

type Response struct {
	Message   string `json:"message"`
	Count     int64  `json:"count"`
	Timestamp string `json:"timestamp"`
}

func handler(w http.ResponseWriter, r *http.Request) {
	count := requestCount.Add(1)

	resp := Response{
		Message:   fmt.Sprintf("Hello from Go! Path: %s", r.URL.Path),
		Count:     count,
		Timestamp: time.Now().UTC().Format(time.RFC3339),
	}

	w.Header().Set("Content-Type", "application/json")
	json.NewEncoder(w).Encode(resp)
}

func main() {
	http.HandleFunc("/", handler)
	log.Println("Server starting on :8080")
	log.Fatal(http.ListenAndServe(":8080", nil))
}