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Let us create a simple echo bot |
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- follow [these](https://github.com/rubenlagus/TelegramBots/blob/master/eclipse%20configuration.md) steps to work with eclipse |
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- got to org.telegram and edit `BuildVars.java` and fill it out |
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``` |
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public static final Boolean debug = true; |
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public static final String pathToLogs = "./"; |
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public static final String linkDB = "jdbc:mysql://[IP_OF_YOU_MYSQL_SERVER]:3306/[DATABASE]?useUnicode=true&characterEncoding=UTF-8"; |
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public static final String controllerDB = "com.mysql.jdbc.Driver"; |
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public static final String userDB = "[YOUR_DB_USERNAME]"; |
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public static final String password = "[YOUR_SECRET_DB_PASSWORD]"; |
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``` |
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For our project those settings are enough. |
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[DATABASE]: your database. i.e. myProject |
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- next, go to org.telegram and edit `BotConfig.java` |
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Here we must fill in our login credentials for our bot. |
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``` |
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public static final String TOKENMYPROJECT = "[YOUR_TOP_SECRET_TOKEN]"; |
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public static final String USERNAMEMYPROJECT = "myProjectBot"; |
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``` |
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[YOUR_TOP_SECRET_TOKEN]: your token you got from the [BotFather](https://telegram.me/BotFather) |
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- go to org.telegram.updatehandlers and create a new class. This class is responsible for your bot actions. (in our case just return the text back). This class should extending `TelegramLongPollingBot`. |
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It should look similiar like this: |
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``` |
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package org.telegram.updateshandlers; |
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import org.telegram.telegrambots.api.objects.Update; |
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import org.telegram.telegrambots.bots.TelegramLongPollingBot; |
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public class MyProjectHandler extends TelegramLongPollingBot { |
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@Override |
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public String getBotUsername() { |
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// TODO Auto-generated method stub |
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return null; |
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} |
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@Override |
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public void onUpdateReceived(Update arg0) { |
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// TODO Auto-generated method stub |
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} |
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@Override |
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public String getBotToken() { |
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// TODO Auto-generated method stub |
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return null; |
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} |
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} |
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``` |
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Then you can program your bot. First edit getBotToken() and getBotUsername(). Simply return your credentials mentioned in BotConfig. So for example `return BotConfig.USERNAMEMYPROJECT;` |
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The onUpdateReceived() method could look like this: |
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``` |
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@Override |
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public void onUpdateReceived(Update update) { |
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//check if the update has a message |
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if(update.hasMessage()){ |
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Message message = update.getMessage(); |
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//check if the message has text. it could also contain for example a location ( message.hasLocation() ) |
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if(message.hasText()){ |
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//create a object that contains the information to send back the message |
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SendMessage sendMessageRequest = new SendMessage(); |
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sendMessageRequest.setChatId(message.getChatId().toString()); //who should get the message? the sender from which we got the message... |
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sendMessageRequest.setText("you said: " + message.getText()); |
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try { |
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sendMessage(sendMessageRequest); //at the end, so some magic and send the message ;) |
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} catch (TelegramApiException e) { |
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//do some error handling |
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}//end catch() |
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}//end if() |
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}//end if() |
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}//end onUpdateReceived() |
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``` |
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- go to the `Main.java` in org.telegram and register your updatehandler |
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``` |
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public static void main(String[] args) { |
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TelegramBotsApi telegramBotsApi = new TelegramBotsApi(); |
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try { |
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telegramBotsApi.registerBot(new MyProjectHandler()); |
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} catch (TelegramApiException e) { |
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BotLogger.error(LOGTAG, e); |
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}//end catch() |
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}//end main() |
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``` |
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Reference in new issue