SlackMessagePostedListener stops working after some time

[berkayk]

Hi,

Thanks for this package. When I use messagePostedListener, after some time (like 2-3 hours later), this listener does not get executed. What could be the reason for that?

It is working fine when I first start the app.

SlackMessagePostedListener messagePostedListener = new SlackMessagePostedListener() {
            public void onEvent(SlackMessagePosted event, SlackSession session) {
                SlackChannel channelOnWhichMessageWasPosted = event.getChannel();
                String messageContent = event.getMessageContent();
                SlackUser messageSender = event.getSender();

                logger.warn("Received message on channel: " + channelOnWhichMessageWasPosted.getName() + " with sender: " + messageSender.getUserName());
}

session = SlackSessionFactory.createWebSocketSlackSession("************");
        try {
            session.connect();
        } catch (Exception e) {
            logger.error("Exception at connect. " + e.getMessage());
        }
        session.addMessagePostedListener(messagePostedListener);

Thanks.

[maragao]

Same here.
Did you find a solution?

[octavioroncal]

This is related with the Goodbye Event that is not properly treated in this library. The library should reconnect when receive this event

[RankWeis]

@octavioroncal Do you happen to know of any workaround? Is this an event we can catch ourselves in our code? Slack has seemingly increased the frequency of these goodbye events, and I'm now forced to restart my app every 12 hours in order to keep it running

[octavioroncal]

I've changed this library by https://github.com/seratch/jslack-maintenance-releases. This is a complete implementation of the Slack API and is currently maintained.

[fergonco]

Got the same problem and solved it (UPDATE: didn't work) building the session like this:

        slackSession = SlackSessionFactory.getSlackSessionBuilder(botKey)
                .withConnectionHeartbeat(20, TimeUnit.SECONDS)
                .withAutoreconnectOnDisconnection(true)
                .build();

and I am receiving goodbye events without being disconnected so far.

[fergonco]

Previous solution didn't work either, so I ended up creating a subclass of the session and intercepting the goodbye event in the onMessage method:

package com.ullink.slack.simpleslackapi.impl;

import com.google.gson.JsonObject;
import com.google.gson.JsonParser;
import com.ullink.slack.simpleslackapi.WebSocketContainerProvider;

public class HackedSlackSession extends SlackWebSocketSessionImpl {

    public HackedSlackSession(WebSocketContainerProvider webSocketContainerProvider, String authToken, boolean reconnectOnDisconnection, long heartbeat, TimeUnit unit) {
        super(webSocketContainerProvider, authToken, reconnectOnDisconnection, heartbeat, unit);
    }

    @Override
    public void onMessage(String message) {
        final JsonObject object = new JsonParser().parse(message).getAsJsonObject();
        if ("goodbye".equals(object.get("type").getAsString())) {
            // Here you reconnect, exit, ...
        }

        super.onMessage(message);
    }
}