ChatServiceClient

The same client instance decorated to add the given key and value to the metadata of any request issued.

Lower level "lifted" version of the method, giving access to request metadata etc. prefer retrieveLastMessages(io.github.positionpal.proto.RetrieveLastMessagesRequest) if possible.

Initiates a shutdown in which preexisting and new calls are cancelled.

This method is only valid for clients that use an internal channel. If the client was created with a shared user-provided channel, the channel itself should be closed.

A Future that completes successfully when shutdown via close() or exceptionally if a connection can not be established or reestablished after maxConnectionAttempts.