code: function (path) {
      var url = 'https://api.dropboxapi.com/2/sharing/create_shared_link_with_settings';
      var options = {
        body: {path: getDropboxPath(path)}
      };
  
      return this._request('POST', url, options).then((response) => {
        if (response.status !== 200 && response.status !== 409) {
          return Promise.reject(new Error('Invalid response status:' + response.status));
        }
  
        var body;
  
        try {
          body = JSON.parse(response.responseText);
        } catch (e) {
          return Promise.reject(new Error('Invalid response body: ' + response.responseText));
        }
  
        if (response.status === 409) {
          if (compareApiError(body, ['shared_link_already_exists'])) {
            return this._getSharedLink(path);
          }
  
          return Promise.reject(new Error('API error: ' + body.error_summary));
        }
  
        return Promise.resolve(body.url);
      }).then((link) => {
        this._itemRefs[path] = link;
  
        if (hasLocalStorage) {
          localStorage.setItem(SETTINGS_KEY+':shares', JSON.stringify(this._itemRefs));
        }
  
        return Promise.resolve(link);
      }, (error) => {
        error.message = 'Sharing Dropbox file or folder ("' + path + '") failed: ' + error.message;
        return Promise.reject(error);
      });
    }
docs: Gets a publicly-accessible URL for the path from Dropbox and stores it
  in ``_itemRefs``.
  
  @return {Promise} a promise for the URL
  
  @private