Add EventHandlers

Adding default Error Handler

The error event runs if there is an error on making requests in polling or webhooks

import tech.digitaldojo.jtba.TelegramBot;
import tech.digitaldojo.jtba.events.TelegramEvents;

class Showcase {

    private TelegramBot bot;

    private void anything() {
        bot.on(TelegramEvents.error, System.out::println);
    }

}

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Adding Default ReadyHandler

This event runs if the bot is able to make API requests.

import tech.digitaldojo.jtba.TelegramBot;
import tech.digitaldojo.jtba.events.TelegramEvents;

class Showcase {

    private TelegramBot bot;

    private void anything() {
        bot.on(TelegramEvents.ready, (user) -> {
            System.out.println("Bot Ready: " + user);
        });
    }

}

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Adding Default TextMessageHandler

The text event runs if the message has any text set to the message object

import tech.digitaldojo.jtba.TelegramBot;
import tech.digitaldojo.jtba.events.MessageEvents;

class Showcase {

    private TelegramBot bot;

    private void anything() {
        bot.on(MessageEvents.text, (message) -> {
            System.out.println("Received Text: " + user);

            String txt = message.text;
            if (txt.startsWith("-echo ")) {
                txt = txt.replaceFirst("-echo ", "");
                message.chat.send(txt);
                message.replyMarkdown("```txt\n" + txt + "\n```");
            }
        });
    }

}

---

Handlers with "external" Consumer

import tech.digitaldojo.jtba.TelegramBot;
import tech.digitaldojo.jtba.data.types.Message;
import tech.digitaldojo.jtba.events.MessageEvents;
import tech.digitaldojo.jtba.events.TelegramEvents;

import java.util.function.Consumer;

class Showcase {

    private TelegramBot bot;

    private void anything() {
        bot.on(TelegramEvents.message, Showcase::onMessage);
        bot.on(MessageEvents.text, new MyMessageConsumer(bot));
    }

    public void onMessage(Message message) {
        // whatever
    }

    class MyMessageConsumer extends Consumer<Message> {

        private final TelegramBot bot;

        public MyMessageConsumer(TelegramBot bot) {
            this.bot = bot;
        }

        @Override
        public void accept(final Message message) {
            System.out.println("Message: " + message);
        }

    }

}