Stupid JSON server in golang

server.go

package main

import (
  "net/http"
  "encoding/json"
)

type Person struct {
  ID int `json:"id"`
  Firstname string `json:"firstname"`
}

var people []Person

func main() {
  people = append(people, Person{ID: 1, Firstname:"Colyn"})
  people = append(people, Person{ID: 2, Firstname:"April"})
  http.HandleFunc("/", func(w http.ResponseWriter, req *http.Request) {
    w.Header().Set("Content-Type", "application/json")
    json.NewEncoder(w).Encode(people)
  })

  http.ListenAndServe(":8000", nil)
}