Send message as 'slackbot'

[codelibra]

Is it possible to post message as slackbot ? My intention here is, when a new user logs in slack shows only slackbot and slack related tutorial. I also want to show details regarding my custom bot usage. I thought since slackbot is the first DM which user gets, sending as slackbot could serve the purpose. Is there a better way to perform this? How can we do that?

[Omertron]

I have a registered listener for help commands called, HelpListener. This is the pertinent section of code that I use to send a welcome message to whoever joins a channel.

In the BotWelcome.sendWelcomeMessage function I also save the username of the person welcomed so I don't re-welcome them.

public class HelpListener implements SlackMessagePostedListener {
    @Override
    public void onEvent(SlackMessagePosted event, SlackSession session) {
        // Filter out the bot's own messages or messages from other bots
        if (session.sessionPersona().getId().equals(event.getSender().getId()) || event.getSender().isBot()) {
            return;
        }

        if (event.getMessageSubType() == SlackMessagePosted.MessageSubType.CHANNEL_JOIN
                || event.getMessageSubType() == SlackMessagePosted.MessageSubType.GROUP_JOIN) {
            // Send a welcome message (will not re-send if already sent)
            BotWelcome.sendWelcomeMessage(session, event.getChannel(), event.getSender());

            // No need to continue, so return
            return;
        }

        processMessageEvent(session, event);
    }
}