go - Golang Xml Unmarshal, No value -

type vasthtml struct {      vast struct {              version string `xml:"version,attr"`              ad      struct {                      id     string `xml:"id,attr"`                      inline struct {                              adsystem    string   `xml:"adsystem"`                              adtitle     string   `xml:"adtitle"`                              description string   `xml:"description"`                              error       string   `xml:"error"`                              impression  []string `xml:"impression"`                              creatives   struct {                                      creative []struct {                                              sequence string `xml:"sequence,attr"`                                              id       string `xml:"id,attr"`                                              linear   struct {                                                      duration       string `xml:"duration"`                                                      trackingevents struct {                                                              tracking []string `xml:"tracking"`                                                      } `xml:"trackingevents"`                                                      videoclicks struct {                                                              clickthrough string   `xml:"clickthrough"`                                                              customclick  []string `xml:"customclick"`                                                      } `xml:"videoclicks"`                                                      mediafiles struct {                                                              mediafile []struct {                                                                      delivery string `xml:"delivery,attr"`                                                                      bitrate  string `xml:"bitrate,attr"`                                                                      width    string `xml:"width,attr"`                                                                      height   string `xml:"height,attr"`                                                                      type     string `xml:"type,attr"`                                                              } `xml:"mediafile"`                                                      } `xml:"mediafiles"`                                              } `xml:"linear"`                                              companionads struct {                                                      companion []struct {                                                              width                 string `xml:"width,attr"`                                                              height                string `xml:"height,attr"`                                                              staticresource        string `xml:"staticresource"`                                                              trackingevents        string `xml:"trackingevents"`                                                              companionclickthrough string `xml:"companionclickthrough"`                                                      } `xml:"companion"`                                              } `xml:"companionads"`                                      } `xml:"creative"`                              } `xml:"creatives"`                              extensions string `xml:"extensions"`                      } `xml:"inline"`              } `xml:"ad"`      } `xml:"vast"` 

}

   func main()  {      resp, err := http.get("http://ad3.liverail.com/?lr_publisher_id=1331&lr_campaign_id=229&lr_schema=vast2")      if err != nil {         fmt.println(err)         os.exit(1)     }      defer resp.body.close()     xmldatafromhttp, err := ioutil.readall(resp.body)       if err != nil {         fmt.println(err)         os.exit(1)     }    fmt.println(os.stdout, string(xmldatafromhttp))  // read xml http response     var xmldata vasthtml    err = xml.unmarshal(xmldatafromhttp, &xmldata)      if err != nil {            panic(err)          }  fmt.printf("xml===>: ", xmldata.vast)   } 

hello everone, after unmarshaling xmlvast url that's give struct without value. when copy content of xmlvast in file , try unmarshal it give me same responce struct without value.

thank in advance.

you trying unmarshal xml document root of <vast> struct of type vasthtml, contains vast first field.

pass vast element directly unmarshal function if want decode into.

err = xml.unmarshal(xmldatafromhttp, &xmldata.vast)