hotentry.go

package main

import (
	"encoding/xml"
	"io"
	"log"
	"net/http"
	"time"
)

func main() {
	res, err := http.Get("http://b.hatena.ne.jp/hotentry.rss")
	if err != nil {
		log.Fatal(err)
	}
	defer res.Body.Close()

	if err := do(res.Body); err != nil {
		log.Fatal(err)
	}
}

func do(r io.Reader) error {
	type entry struct {
		Title         string    `xml:"title"`
		BookmarkCount int       `xml:"bookmarkcount"`
		Date          time.Time `xml:"date"`
		Subjects      []string  `xml:"subject"`
	}
	var result struct {
		Title string  `xml:"channel>title"`
		Item  []entry `xml:"item"`
	}
	if err := xml.NewDecoder(r).Decode(&result); err != nil {
		return err
	}
	log.Printf("%v", result.Title)
	for _, i := range result.Item {
		log.Printf("item: %v", i)
	}
	return nil
}