How to get a user's Google+ ID from a YouTube channel ID
I'm running a service where people can connect their Google account using oauth 2.0, and with YouTube permissions I can manage their channels/access their YouTube Channel ID. However, my question is whether or not you can go backwards. i.e. How can you determine the Google Account Owner from a given YouTube channel ID? Michael Waltman googlePlusUserId is now deprecated from https://developers.google.com/youtube/v3/docs/channels#properties contentDetails.googlePlusUserId no longer exists as part of the contentDetails part. Based on this excerpt from their change-log June 13, 2016 This update