simple_todo_api.go

package main

import (
	"encoding/json"
	"github.com/codegangsta/negroni"
	"github.com/gorilla/mux"
	"log"
	"net/http"
	"strconv"
)

const (
	PORT int    = 9000
	HOST string = "localhost"
)

type Item struct {
	Name string `json:"name"`
	Done bool   `json:"done"`
}

type List struct {
	Name  string `json:"name"`
	Items []Item `json:"items"`
}

func main() {
	log.Printf("Startup on %s:%d", HOST, PORT)
	router := mux.NewRouter()
	router.HandleFunc("/", func(w http.ResponseWriter, req *http.Request) {
		list := &List{
			"Todos", []Item{
				{"Clean the house", false},
				{"Feed the dog", false},
				{"Check mailbox", false},
			},
		}

		w.Header().Set("Content-Type", "application/json; charset=utf-8")
		json.NewEncoder(w).Encode(list)
	})

	n := negroni.Classic()
	n.UseHandler(router)
	n.Run(HOST + ":" + strconv.Itoa(PORT))
}