Lesson 4. Emoji

Welcome back! Now, you know how to log messages from users. But how to make bot messages more user-friendly and beautiful? The answer is - emoji. I think you know what is emoji, so let's move forward.

Now, open IntelliJ IDEA and create a new project. Create files Main.java and EmojiTestBot.java within the src directory. Here is the first look of our files:

import org.telegram.telegrambots.longpolling.TelegramBotsLongPollingApplication;

public class Main {
    public static void main(String[] args) {
        String botToken = "12345:YOUR_TOKEN";
        try (TelegramBotsLongPollingApplication botsApplication = new TelegramBotsLongPollingApplication()) {
            botsApplication.registerBot(botToken, new EmojiTestBot(botToken));
            System.out.println("EmojiTestBot successfully started!");
            Thread.currentThread().join();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

import org.telegram.telegrambots.api.methods.send.SendMessage;
import org.telegram.telegrambots.api.objects.Update;
import org.telegram.telegrambots.longpolling.util.LongPollingSingleThreadUpdateConsumer;
import org.telegram.telegrambots.exceptions.TelegramApiException;
import org.telegram.telegrambots.meta.generics.TelegramClient;
import org.telegram.telegrambots.client.okhttp.OkHttpTelegramClient;

import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;

public class EmojiTestBot implements LongPollingSingleThreadUpdateConsumer {
    private TelegramClient telegramClient = new OkHttpTelegramClient("12345:YOUR_TOKEN");

    @Override
    public void consume(Update update) {
        // We check if the update has a message and the message has text
        if (update.hasMessage() && update.getMessage().hasText()) {
            // Set variables
            String user_first_name = update.getMessage().getChat().getFirstName();
            String user_last_name = update.getMessage().getChat().getLastName();
            long user_id = update.getMessage().getChat().getId();
            String message_text = update.getMessage().getText();
            long chat_id = update.getMessage().getChatId();
            String answer = message_text;
            SendMessage message = SendMessage // Create a message object object
                    .builder()
                    .chatId(chat_id)
                    .text(answer)
                    .build();
            try {
                telegramClient.execute(message); // Sending our message object to user
            } catch (TelegramApiException e) {
                e.printStackTrace();
            }
        }
    }
}

OK. Now let's install emoji library:

            
              <dependency>
                <groupId>com.vdurmont</groupId>
                <artifactId>emoji-java</artifactId>
                <version>5.1.1</version>
              </dependency>
            
        

compile 'com.vdurmont:emoji-java:5.1.1'

Download `.jar` from here

Once the library is installed, import it to your bot class:

import com.vdurmont.emoji.EmojiParser;

Now you can view a list of emojis at EmojiPedia or Emoji Cheat Sheet. To insert emoji, do this:

String answer = EmojiParser.parseToUnicode("Here is a smile emoji: :smile:\n\n Here is alien emoji: :alien:");

Where :smile: or :alien: is emoji alias or emoji short code. You can also view them at EmojiPedia or Emoji Cheat Sheet.

Here is source code. You can also find it on GitHub.

package org.telegram.telegrambots.tutorial.Lesson4.src;

import org.telegram.telegrambots.longpolling.TelegramBotsLongPollingApplication;

public class Main {
    public static void main(String[] args) {
        String botToken = "12345:YOUR_TOKEN";
        try (TelegramBotsLongPollingApplication botsApplication = new TelegramBotsLongPollingApplication()) {
            botsApplication.registerBot(botToken, new EmojiTestBot(botToken));
            System.out.println("EmojiTestBot successfully started!");
            Thread.currentThread().join();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

package org.telegram.telegrambots.tutorial.Lesson4.src;

import com.vdurmont.emoji.EmojiParser;
import org.telegram.telegrambots.client.okhttp.OkHttpTelegramClient;
import org.telegram.telegrambots.longpolling.util.LongPollingSingleThreadUpdateConsumer;
import org.telegram.telegrambots.meta.api.methods.send.SendMessage;
import org.telegram.telegrambots.meta.api.objects.Update;
import org.telegram.telegrambots.meta.exceptions.TelegramApiException;
import org.telegram.telegrambots.meta.generics.TelegramClient;

public class EmojiTestBot implements LongPollingSingleThreadUpdateConsumer {
    private final TelegramClient telegramClient;

    public EmojiTestBot(String botToken) {
        telegramClient = new OkHttpTelegramClient(botToken);
    }

    @Override
    public void consume(Update update) {
        // We check if the update has a message and the message has text
        if (update.hasMessage() && update.getMessage().hasText()) {
            // Set variables
            long chat_id = update.getMessage().getChatId();
            String answer = EmojiParser.parseToUnicode("Here is a smile emoji: :smile:\n\n Here is alien emoji: :alien:");
            SendMessage message = SendMessage // Create a message object
                    .builder()
                    .chatId(chat_id)
                    .text(answer)
                    .build();
            try {
                telegramClient.execute(message); // Sending our message object to user
            } catch (TelegramApiException e) {
                e.printStackTrace();
            }
        }
    }
}

Now you can see our beautiful messages:

Our lesson came to an end. Thank you for reading this. See you soon!

Last modified: 07 September 2024