func parseFeedURL(URL string) (userID, feedKey string, err error) {
	var u *url.URL
	if u, err = url.Parse(URL); err != nil {
		return
	}
	userID = path.Base(u.Path)
	feedKey = u.Query().Get("key")
	return
}
Extract user ID and user feed key from a feed URL. Currently unused.
package gr
import (
	"encoding/xml"
	"fmt"
	"net/url"
	"path"
	"strings"
	"github.com/pkg/errors"
)
const rssURL = "https://www.goodreads.com/review/list_rss/"
type Feed struct {
	Name  string
	Books []Book
}