Spring Websocket with SockJs switch from XHR streaming to Websocket

Question

I am using Spring Websocket with SockJs (v1.1.1) over STOMP on client. I create the client with the code below.

SockJS = require('sockjs-client') Stomp = require('webstomp-client') stompClient = Stomp.over(new SockJS(url))

It's works fine. But it uses xhr_streaming as transport by default, that is not desirable for me. I want to switch it to websocket tranport.

stompClient = Stomp.over(new SockJS(url, null, {transports:'websocket'}))

But this approach does not work for me. It falls with event:

code: 2000 reason: "All transports failed"

My Spring Websocket configuration is very simple:

@Configuration @EnableWebSocketMessageBroker public class WebSocketConfig extends AbstractSessionWebSocketMessageBrokerConfigurer<ExpiringSession> { @Override public void configureStompEndpoints(StompEndpointRegistry registry) { registry.addEndpoint("/myEndpoint").setAllowedOrigins("*") .withSockJS(); } @Override public void configureMessageBroker(MessageBrokerRegistry registry) { registry.enableSimpleBroker("/queue/", "/topic/"); registry.setApplicationDestinationPrefixes("/app"); } }

The main problem I face with xhr_streaming is that every stream request updates last access time for user session (I use Spring Session as well). But it's not a desirable behavior for my application. So how I can fix it? And will websocket transport help? Thanks in advance.

jahra · Accepted Answer · 2016-12-30 03:25:45Z

So, I've got the reason. I am using a webpack dev server with proxy option. By default it does NOT proxy ws protocol requests (it losts headers). You need toa add ws: true to your config and everything will work fine.

proxy: { '/api/*': { target: 'http://localhost:8080', pathRewrite: {'^/api' : ''}, ws: true } }

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