This is partially in regard to this on the Docs
The message creation pattern in the SDK starts by optimistically creating a message on the local device without waiting for the server response. Sent messages are always returned in message queries, even before they have been delivered to the server. This provides the user with a fluid messaging flow: when a user sends a message, that sent message will appear in the message stream right away (instead of waiting until it has been confirmed by the server). To check or display the current status of message delivery for your application, use the
syncState property in the message model.
Is optimistic UI currently implemented for the Typescript SDK? syncState doesn’t seem to exist on the Messages objects nor do messages appear immediately (optimistically) when creating a new message.
I’m currently using the Typescript SDK version 6.9.0