what is best way to implement Eventsource in android app

Question

I was trying to connect SSE from android app but it have a problem. It is not showing data 100%. Like in first attempt someone trigger notify command then it won't work but after that second attempt everybody get notify. Here is my code: //calling this code from activity on create

EventHandler eventHandler = new SimpleEventsListener();
    String url = String.format(ApiInterface.ENDPOINT + "notify/");
    EventSource.Builder builder = new EventSource.Builder(eventHandler, URI.create(url)).connectTimeoutMs(29 * 1000);

    try (EventSource eventSource = builder.build()) {
        for (; ; ) {
            eventSource.start();
            TimeUnit.SECONDS.sleep(30);
        }
    }

here is EventSource implementation.

public class SimpleEventsListener implements EventHandler {

    @Override
    public void onOpen() throws Exception {
        System.out.println("SimpleEventsListener onOpen ");
    }

    @Override
    public void onClosed() throws Exception {
        System.out.println("SimpleEventsListener onClosed");
    }

    @Override
    public void onMessage(String event, MessageEvent messageEvent) throws Exception {
        System.out.println("SimpleEventsListener Event received " + messageEvent.getData());
        // here implemented data recieved code which coming from messageEvent.getData()
    }

    @Override
    public void onComment(String comment) throws Exception {
        System.out.println("SimpleEventsListener onComment");
    }

    @Override
    public void onError(Throwable t) {
        System.out.println("SimpleEventsListener onError: " + t);
    }

}

What is the of best way to receive data on the first attempt too?

what is best way to implement Eventsource in android app

0 Answers0