Example of Telegram Bot class implementation

ExampleBot.java

package com.alexandremucci.telegrambot.bots;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
import org.telegram.telegrambots.bots.TelegramLongPollingBot;
import org.telegram.telegrambots.meta.api.objects.Update;

@Component
public class ExampleBot extends TelegramLongPollingBot {

    @Value("${bot.token}")
    private String token;

    @Value("${bot.username}")
    private String username;

    @Override
    public void onUpdateReceived(Update update) {
        // get text content and print
        if (update.hasMessage()) {
            System.out.println(update.getMessage().getText());
        }
    }

    @Override
    public String getBotUsername() {
        return this.username;
    }

    @Override
    public String getBotToken() {
        return this.token;
    }
}