youtube.channel-ids Background Comma delimited list of YouTube channel IDs to crawl. Setting the key Set this configuration key in the search package or data source configuration. Use the configuration key editor to add or edit the youtube.channel-ids key, and set the value. This can be set to any valid List<String> value. Default value No default value. See also Youtube data source youtube.api-key youtube.debug youtube.liked-videos youtube.playlist-ids