Fix template message id.

weixin.go

@@ -225,7 +225,7 @@ type ResponseWriter interface {
 	PostVideo(mediaId string, title string, description string) error
 	PostMusic(music *Music) error
 	PostNews(articles []Article) error
-	PostTemplateMessage(templateid string, url string, data TmplData) (string, error)
+	PostTemplateMessage(templateid string, url string, data TmplData) (int32, error)
 	// Media operator
 	UploadMediaFromFile(mediaType string, filepath string) (string, error)
 	DownloadMediaToFile(mediaId string, filepath string) error
@@ -573,7 +573,7 @@ func (wx *Weixin) AddTemplate(shortid string) (string, error) {
 	return templateId.Id, nil
 }
 
-func (wx *Weixin) PostTemplateMessage(touser string, templateid string, url string, data TmplData) (string, error) {
+func (wx *Weixin) PostTemplateMessage(touser string, templateid string, url string, data TmplData) (int32, error) {
 	var msg struct {
 		ToUser     string   `json:"touser"`
 		TemplateId string   `json:"template_id"`
@@ -586,17 +586,17 @@ func (wx *Weixin) PostTemplateMessage(touser string, templateid string, url stri
 	msg.Data = data
 	msgStr, err := marshal(msg)
 	if err != nil {
-		return "", err
+		return 0, err
 	}
 	reply, err := postRequest(weixinHost+"/message/template/send?access_token=", wx.tokenChan, msgStr)
 	if err != nil {
-		return "", err
+		return 0, err
 	}
 	var resp struct {
-		MsgId string `json:"msgid,omitempty"`
+		MsgId int32 `json:"msgid,omitempty"`
 	}
 	if err := json.Unmarshal(reply, &resp); err != nil {
-		return "", err
+		return 0, err
 	}
 	return resp.MsgId, nil
 }
@@ -1059,7 +1059,7 @@ func (w responseWriter) PostNews(articles []Article) error {
 }
 
 // Post template message
-func (w responseWriter) PostTemplateMessage(templateid string, url string, data TmplData) (string, error) {
+func (w responseWriter) PostTemplateMessage(templateid string, url string, data TmplData) (int32, error) {
 	return w.wx.PostTemplateMessage(w.toUserName, templateid, url, data)
 }