Web SDK 2.16.0

Release Notes

• added new sponsors API getApplicationSponsors, getProgramSponsors, getChatRoomSponsors
• getSponsors API is deprecated (use getProgramSponsors API instead)
• fix regression issue in addMessageListener API where adding listener was not subscribing to chat room channel
• added images and attributes property in IRewardItem interface
• added filter by attributes option in getApplicationRewardItems API
• added interactive query parameter in getWidgets API