Java client to SockJS server

[Leng Sheng Hong]

I am curious if anyone has written a java client to connect to an existing vertx SockJS server. What's the best way to do it? Is there any examples?
I am trying to write a server side bot for a game. (Might be connecting with python too once i got how to do it in java)

[Leng Sheng Hong]

I realized that I can use vertx http client t o connect to the SockJS server.
Vertx vertx = Vertx.newVertx();
HttpClient client = vertx.createHttpClient().setHost("127.0.0.1").setPort(8080);;
client.connectWebsocket("/testapp",WebSocketVersion.RFC6455,new Handler<WebSocket>() { .....

[Leng Sheng Hong]

I am managed to connect to the server however handleRegister never gets trigger.
I tried to manually connect to the server with html5 WebSocket, i don't really know what to do with it but this is what i can see from firebug, it's connecting to:

http://127.0.0.1:8080/myserver/info

1) the vertxbus is trying to connect to http://127.0.0.1:8080/myserver/info

2) then it's upgraded to websocket automatically with a URL that is always random ws://127.0.0.1:8080/myserver/122/abcdefgh/websocket

So, how can I connect to the sockjs underlying websocket url with the normal WebSocket class.
I tried these but they won't work (no reply from server).
new WebSocket('ws://127.0.0.1:8080/myserver');
new WebSocket('ws://127.0.0.1:8080/myserver/info');

When I tried the websocket URL which i make it up myself: ws://127.0.0.1:8080/myserver/122/abcdefgh/websocket
I am able to get message 'o' and 'h' where h is the heartbeat.

then i tried to send the message which vertxbus.js is sending to subscribe to a channel, the websocket connection will get disconnected
ws.send('{"type":"register","address":"app.mychannel.test"}')

How can i determine the correct WS url and subsribe to a channel in standard html5 WebSocket? I m trying to understand how it works so i can port it to other languages

[Angelo K H]

Hi,

Do you resolve this issue?

[Martin Ahrens]

I've finally gotten it to work with the following Groovy code, note the double JSON encoding:

static void vertxWrite(type, address, body) {

    VertxFactory.newVertx().createHttpClient().setHost('localhost').setPort(8888)

        .connectWebsocket("/eventbus/123/abc/websocket", new Handler<WebSocket>() {

        public void handle(WebSocket ws) {

            def envelope = [type:type, address:address, body:body]

            def doubleJSON = JsonOutput.toJson(JsonOutput.toJson(envelope))

            ws.writeTextFrame(doubleJSON)

            ws.close()

        }

    }).close()

}

[Angelo H]

Thank you!

Cheers,

Angelo

Message Me @ http://we.peer.im/angelo

angel...@gmail.com
510-397-8860

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[Martin Ahrens]

Thanks to clarification from Tim I'm now using a less complex way with raw websockets:

static void vertxWrite(type, address, body) {

    VertxFactory.newVertx().createHttpClient().setHost('localhost').setPort(8888)

        .connectWebsocket("/eventbus/websocket", new Handler<WebSocket>() {

        public void handle(WebSocket ws) {

            def envelope = [type:type, address:address, body:body]

            ws.writeTextFrame(JsonOutput.toJson(envelope))

            ws.close()

        }

    }).close()

}

[田传武]

Hi,
Can the vertx websockets java client run on android?

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