Example #1
1
func urlShortenerMain(client *http.Client, argv []string) {
	if len(argv) != 1 {
		fmt.Fprintf(os.Stderr, "Usage: urlshortener http://goo.gl/xxxxx     (to look up details)\n")
		fmt.Fprintf(os.Stderr, "       urlshortener http://example.com/long (to shorten)\n")
		return
	}

	svc, _ := urlshortener.New(client)
	urlstr := argv[0]

	// short -> long
	if strings.HasPrefix(urlstr, "http://goo.gl/") || strings.HasPrefix(urlstr, "https://goo.gl/") {
		url, err := svc.Url.Get(urlstr).Do()
		if err != nil {
			log.Fatalf("URL Get: %v", err)
		}
		fmt.Printf("Lookup of %s: %s\n", urlstr, url.LongUrl)
		return
	}

	// long -> short
	url, err := svc.Url.Insert(&urlshortener.Url{
		Kind:    "urlshortener#url", // Not really needed
		LongUrl: urlstr,
	}).Do()
	if err != nil {
		log.Fatalf("URL Insert: %v", err)
	}
	fmt.Printf("Shortened %s => %s\n", urlstr, url.Id)
}
// shortenURL returns a short URL which redirects to the provided url,
// using Google's urlshortener API.
func shortenURL(ctx context.Context, url string) (string, error) {
	transport := &oauth2.Transport{
		Source: google.AppEngineTokenSource(ctx, urlshortener.UrlshortenerScope),
		Base:   &urlfetch.Transport{Context: ctx},
	}
	client := &http.Client{Transport: transport}

	svc, err := urlshortener.New(client)
	if err != nil {
		return "", err
	}

	resp, err := svc.Url.Insert(&urlshortener.Url{LongUrl: url}).Do()
	if err != nil {
		return "", err
	}
	return resp.Id, nil
}
Example #3
0
func (this *Link) Shorten() (string, error) {
	client := &http.Client{
		Transport: &transport.APIKey{Key: os.Getenv("GOOGLE_API_KEY")},
	}

	svc, err := urlshortener.New(client)
	if err != nil {
		log.Fatalf("Unable to create UrlShortener service: %v", err)
	}

	url, err := svc.Url.Insert(&urlshortener.Url{
		Kind:    "urlshortener#url",
		LongUrl: "http://iwillvote.us/?code=" + this.Hash,
	}).Do()
	if err != nil {
		log.Fatalf("URL Insert: %v", err)
	}

	return url.Id, nil
}