Spring session + Spring web socket. Send message to specific client based on session id

Question

I have followed Quetion1 and Quetion2 from stack overflow to send messages to specific client, based on its sessionId but could not find success.

Below is my sample Rest

Answer 1

If you are using /user channel as you do, try to pass the user as stated here.

@MessageMapping("/messages")
public void greeting(HelloMessage message, SimpMessageHeaderAccessor headerAccessor, Principal principal) 
    throws Exception {
    messagingTemplate.convertAndSendToUser(principal.getName(), "/queue/test", message);
}