task node data loading from a json file

this is when im using a rowlist right?

sub createRowItems(json as Object, listContent as Object)
  for each postDataContainer in json.data.children
    postData = postDataContainer.data
    post = {
      title: postData.title,
      selfText: postData.selfText,
      thumbnail: postData.thumbnail,
      isVideo: postData.is_video,
      url: postData.url,
      isSelf: postData.isSelf
    }

    if post.isVideo then
      itemContent = listContent.createChild("ContentNode")
      itemContent.update({ isSelf: post.isSelf }, true)
      itemContent.title = post.title
      itemContent.description = post.selfText
      itemContent.url = post.url

      if post.thumbnail <> "self" and post.thumbnail <> "default" and post.thumbnail <> "image" then
        itemContent.SDPosterUrl = post.thumbnail
      end if

      if post.isVideo then
        itemContent.url = post.url + "/DASHPlaylist.mpd"
        itemContent.streamformat = "dash"
      end if

      if postData.media <> invalid and postData.media.type = "youtube.com" then
        itemContent.videoUrl = postData.url
        itemContent.streamFormat = "youtube"
      end if

      extension = right(postData.url, 4)
      if extension = ".png" or extension = ".jpg" then
        itemContent.SDPosterUrl = postData.url
      end if

      itemContent.update({
        isRedditVideo: (postData.media <> invalid and postData.media.reddit_video <> invalid)
      }, true)
    end if
  end for
end sub

i believe ill be using this part