APP POWERED EXTENSIBILITY OF MESSAGES ON AN EXISTING MESSAGING SERVICE

摘要

An instant messaging (IM) service interacts with IM clients operating on computing devices to implement an extensible platform with which individual composer applications ("apps") may interact to support a variety of different messaging user experiences for users of respective local and remote devices. Each IM client exposes an application programming interface for utilization by a local composer app to package content that the IM service then transparently transports to a remote device. An IM client on the remote device provides the package to an identified associated remote composer app that can unpack the content and use it to support the app's customized messaging experience for the remote user. The composer app also provides a preview of the experience supported by the packaged content that the clients on the respective local and remote devices may utilize in a messaging history and/or as a launching point to the composer app's user experience.