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)
}
func handleShorten(w http.ResponseWriter, r *http.Request) {
longUrl := r.FormValue("longUrl") //get the value of the text field with the name longUrl in the form
urlshortenerSvc, _ := urlshortener.New(http.DefaultFClient) //use the default client that is available in the http package and create a new instance of the url shortener service
url, _ := urlshortenerSvc.Insert(&urlshortener.Url {LongUrl: longUrl}).Do() //fill in the Url data structure with the given long url and call the service
rootHtmlTmpl.Execute(w, fmt.Sprintf("Shortened version of `%s` is: %s", longUrl, url.Id))
}