Pro Java Clustering and Scalability: Building Real-Time Apps with Spring, Cassandra, Redis, WebSocket and RabbitMQ

© Jorge Acetozi 2017

Jorge Acetozi, Pro Java Clustering and Scalability, https://doi.org/10.1007/978-1-4842-2985-9_18

18. Joining the Chat Room

Jorge Acetozi¹ 

(1)São Paulo / SP, Brazil

When you join a chat room, some JavaScript code gets executed on the client side.

function connect() {  socket = new SockJS('/ws');  stompClient = Stomp.over(socket);  stompClient.connect({ 'chatRoomId' : chatRoomId }, stompSuccess, stompFailure);}function stompSuccess(frame) {  enableInputMessage();  successMessage("Your WebSocket connection was successfully established!")  stompClient.subscribe('/chatroom/connected.users',updateConnectedUsers);  stompClient.subscribe('/chatroom/old.messages',  oldMessages);  stompClient.subscribe('/topic/' + chatRoomId + '.public.messages', ...