“Golang WebServer” Respostas de código

Golang WebServer

package main

import (
	"encoding/json"
	"fmt"
	"io/ioutil"
	"log"
	"net/http"
)

func main() {
	http.Handle("/", http.HandlerFunc(home))
	http.Handle("/example", http.HandlerFunc(example))
	http.ListenAndServe(":5000", nil)
}

func example(w http.ResponseWriter, r *http.Request) {
	w.WriteHeader(http.StatusCreated)
	w.Header().Set("Content-Type", "application/json")
	resp := make(map[string]string)
	resp["message"] = "Status Created"
	jsonResp, err := json.Marshal(resp)
	if err != nil {
		log.Fatalf("Error happened in JSON marshal. Err: %s", err)
	}
	w.Write(jsonResp)
	return
}

func home(w http.ResponseWriter, r *http.Request) {
	file_data, err := ioutil.ReadFile("./index.html")
	if err != nil {
		fmt.Println(err)
	}
	w.Write(file_data)
	return
}