Cannot build Bitfinex Java Client - Not getting any response - stream

Question

So, the main goal here is to connect to the Bitfinex WebSocket by building a WebSocket Client. I would like to start receiving a stream of information(price,trades,etc). The problem is that at this stage I cannot even subscribe to a specific currency pair. In other words, I am sending a request for information to the WebSocket server but I am not receiving any responses and I cannot figure why this is. My code is below.
This is the main method
public class Main {
public static void main(String[] args) throws ExecutionException, InterruptedException {
String URL = "wss://api-pub.bitfinex.com/ws/2/";
WebSocketClient client = new StandardWebSocketClient();
WebSocketStompClient stompClient = new WebSocketStompClient(client);
stompClient.setMessageConverter(new MappingJackson2MessageConverter());
StompSessionHandler sessionHandler = new MyStompSessionHandler();
stompClient.connect(URL,sessionHandler);
new Scanner(System.in).nextLine(); // Don't close immediately.
}
}
This is the MyStompSessionHandler
public class MyStompSessionHandler extends StompSessionHandlerAdapter{
#Override
public void afterConnected(
StompSession session, StompHeaders connectedHeaders) {
System.out.println("New session established : " + session.getSessionId());
System.out.println("wss://api-pub.bitfinex.com/ws/2");
session.send("wss://api-pub.bitfinex.com/ws/2/", getSampleMessage());
System.out.println("Message sent to websocket server");
}
#Override
public void handleException(StompSession session, StompCommand command, StompHeaders headers, byte[] payload, Throwable exception) {
System.out.println("Got an exception:" + exception);
}
#Override
public Type getPayloadType(StompHeaders headers) {
return OutboundMessage.class;
}
private Object getSampleMessage() {
InboundMessage inboundMessage = new InboundMessage();
inboundMessage.setEvent("subscribe");
inboundMessage.setChannel("ticker");
inboundMessage.setSymbol("tBTCUSD");
return inboundMessage;
}
#Override
public void handleFrame(StompHeaders headers, Object payload) {
InboundMessage msg = (InboundMessage) payload;
System.out.println(msg.toString());
}
}
This is the InboundMessage class
public class InboundMessage {
private String event;
private String channel;
private String symbol;
public InboundMessage() {
}
public InboundMessage(String event, String channel, String symbol) {
this.event = event;
this.channel = channel;
this.symbol = symbol;
}
public String getEvent() {
return event;
}
public void setEvent(String event) {
this.event = event;
}
public String getChannel() {
return channel;
}
public void setChannel(String channel) {
this.channel = channel;
}
public String getSymbol() {
return symbol;
}
public void setSymbol(String symbol) {
this.symbol = symbol;
}
#Override
public String toString() {
return "InboundMessage{" +
"event='" + event + '\'' +
", channel='" + channel + '\'' +
", symbol='" + symbol + '\'' +
'}';
}

Answer 1

I looked at the Bitfinex website and I don't see any evidence that STOMP is supported. They just have a REST and a WebSocket API. Therefore, using STOMP from your client isn't going to work.