Ruben Bermudez
GitHub
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0f78861f05
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HOWTO.md
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HOWTO.md
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So, you just wanna program your own Telegram bot with @rubenlagus library TelegramBots? Then I'm going to show you how to start ;)
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##### Table of Contents
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[Preperations](#preperations)
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[Let's code!](#lets_code)
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[FAQ](#faq)
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1. [How to get picture?](#question_how_to_get_picture)
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2. [How to send photos?](#question_how_to_send_photos)
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3. [How to use custom keyboards?](#question_how_to_use_custom_keyboards)
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4. [How can I compile my project?](#question_how_to_compile)
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<a name="preperations"/>
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## Preperations
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First you need to download the latest .jar from the Release site [here](https://github.com/rubenlagus/TelegramBots/releases). You can choose between Jar with or without dependencies. If you don't know which one to choose, we recommend to download the full jar with all dependencies ;)
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Next, you need to integrate it into your project.
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Create a new project for your bot, in the example below we are showing you how to do it in eclipse. But of course, you are free to code in whatever IDE you want ;)
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If you don't know how to include a external .jar into your Eclipse project, maybe [this](https://www.youtube.com/watch?v=VWnfHkBgO1I) video is helpful for you
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More information on how to use it with Gradle or Maven, can be found here [here](https://jitpack.io/#rubenlagus/TelegramBots)
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<a name="lets_code"/>
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## Let's code!
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Create a new class that extends one of the following
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```TelegramLongPollingBot``` -> bot is asking Telegram servers continuously if new updates are available
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```TelegramWebhookBot``` -> our bot is "called" from Telegram servers when updates are available
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```TelegramLongPollingCommandBot``` -> simply like TelegramLongPollingBot, but based around the idea of Commands
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Due to the fact that the TelegramLongPollingBot is a little bit less complicated than the others, we are going to work with him in this example.
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Extend ```TelegramLongPollingBot``` with one of your own classes. If we want that the bot can work normally, we must implement the following methods: ```getBotUsername():String```, ```getBotToken():String``` and ```onUpdateReceived(update: Update)```
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The first two methods are really easy to implement. Just create a new class that contains all the information for the bot (username, token and maybe in the future some database information)
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At the end it could look like this:
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```java
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public class BotConfig {
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public static final String BOT_USERNAME = "echoBot";
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public static final String BOT_TOKEN = "{you secret bot token that you got from BotFather}";
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}
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```
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After it, return these static variables like this one:
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```java
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@Override
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public String getBotToken() {
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return BotConfig.BOT_TOKEN;
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}
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```
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The last method could look like this:
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```java
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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 an 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 from the message the sender that sent it.
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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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}
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}
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}
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}
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```
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The principle is rather easy, we have an ```update```, we see that it contains a text -> we create a Send*** object, fill it up with all necessary infos (user/chatId, text) and fire it up
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If you want to send also other types of media (such as photos or audio), then check out our FAQ at the end if this HOWTO. Also please check out the [TelegramBotsExample](https://github.com/rubenlagus/TelegramBotsExample) repo. It contains useful information on how to use the lib from @rubenlagus.
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If you have questions that are not handled here or in the example repo, than feel free to open a new Issue :P
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In any case, you can reach us at [our Telegram group chat](https://telegram.me/JavaBotsApi) ;)
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But to be in context: our bot is not ready, yet. It lacks a way to tell the library that we have a super cool new UpdateHandler written, you remember? 😏
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```java
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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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}
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}
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```
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<a name="faq"/>
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## FAQ
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Question: <a name="question_how_to_get_picture"/>
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<b>How to get a picture?</b>
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Answer: A ```onUpdateReceived()``` Method that just downloads every Photo that users send to the bot could look like this:
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```java
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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 we got some photos
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if (message.getPhoto() != null) {
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/*
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* Just save our received photos in a list. At this point, we do not really have the photos. We have just their id.
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* And with their id's we can download them from Telegram servers
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*/
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for (int i = 0; i < photos.size(); i++) {
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GetFile getFileRequest = new GetFile();
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getFileRequest.setFileId(photos.get(0).getFileId());
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try {
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//we send a request with our fileId to get our filePath.
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File file = getFile(getFileRequest);
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/*
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* After that, we can now start to save them on our local machine.
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* Please have a look on the API specification, on how to download the files with their filepaths you just got in the code above
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* https://core.telegram.org/bots/api#file
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*
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* Just replace <file_path> with File.getFilePath();
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*/
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// In this example, we just print here the filePaths
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System.out.println(file.getFilePath());
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} catch (TelegramApiException e) {
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//TODO: so some error handling
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}
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}
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}
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}
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}
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```
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Question: <a name="question_how_to_send_photos"/>
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<b>How to send photos?</b>
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Answer:
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```java
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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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if(message.getText().equals("/wiki")){
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SendPhoto sendPhotoRequest = new SendPhoto();
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sendPhotoRequest.setChatId(message.getChatId().toString());
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//path: String, photoName: String
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sendPhotoRequest.setNewPhoto("/home/marcel/Downloads/potd_wikipedia.jpg", "Good Friday.jpg"); //
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try {
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sendPhoto(sendPhotoRequest);
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} catch (TelegramApiException e) {
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/*
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* Do some error handling
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* e.printStackTrace();
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*/
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}
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}
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}
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}
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}
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```
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This method uploads the photo every time the user send the bot /wiki. Telegram stores the files we upload on their server. And if next time someone wants to retrieve THE SAME photo we uploaded some time ago, you should use instead of SendPhoto.setNewPhoto() the SendPhoto.setPhoto() method. This method has just one parameter, file_id.
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Question: <a name="question_how_to_use_custom_keyboards"/>
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<b>How to use custom keyboards?</b>
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Answer:
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```java
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//first, create a normal SendMessage object. Our CutsomKeyboard is attached to this object. But don't forget to assign a text. Otherwise the user get's no message
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SendMessage sendMessageRequest = this.selectLanguage();
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sendMessageRequest.setChatId(message.getChatId().toString());
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sendMessageRequest.setText("Change language");
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//ready top takeoff!
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sendMessage(sendMessageRequest);
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```
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The selectLanguage() method could look like this (you also could put the code of the extra method in your main() )
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```java
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public static List<KeyboardRow> selectLanguage(Message message){
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/* changed from "List<List<String>>" to "List<KeyboardRow>"
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* Now we have just a one dimension array. Like a stack or something like that
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*/
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List<KeyboardRow> rows = new ArrayList<KeyboardRow>();
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rows.add(ReplyKeyboardFabricator.getHeader(message));
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//Instead of a list that collects our strings, or "buttons" for each row, now we have a own Object for that
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KeyboardRow row = new KeyboardRow();
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row.add(LocalisationService.getInstance().getString("change_language", DatabaseManager.getInstance().getUserLanguage(EchoHandler.getUserId(message))));
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rows.add(row);
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row = new KeyboardRow();
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row.add("🇦🇹 Deutsch (Östereich)");
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rows.add(row);
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//I just reused the object above. Of cource you could also create a new Keyboardrow for each real row
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row = new KeyboardRow();
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row.add("🇩🇪 Deutsch (Deutschland)");
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rows.add(row);
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row = new KeyboardRow();
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row.add("🇧🇷 Português");
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rows.add(row);
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row = new KeyboardRow();
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row.add("🇺🇸 English (United States)");
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rows.add(row);
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return rows;
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}
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```
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For more example on this, please have a look at [this](https://github.com/rubenlagus/TelegramBotsExample/blob/master/src/main/java/org/telegram/updateshandlers/WeatherHandlers.java) bot in the example repo
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<a name="question_how_to_compile"/>
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Question: <b>How can I compile my project?</b>
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Answer: This is just one way, how you can compile it (here with maven). The example below below is compiling the TelegramBotsExample repo.
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[](https://asciinema.org/a/4np9i2u9onuitkg287ism23kj)
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@ -15,7 +15,7 @@ Both ways are supported, but I recommend long polling method.
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## Usage
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Just import add the library to your project using [Maven, Gradle, ...](https://jitpack.io/#rubenlagus/TelegramBots/v2.3.3.6) or download the jar(including all dependencies) from [here](https://github.com/rubenlagus/TelegramBots/releases/tag/v2.3.3.6)
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Just import add the library to your project using [Maven, Gradle, ...](https://jitpack.io/#rubenlagus/TelegramBots/v2.3.3.7) or download the jar(including all dependencies) from [here](https://github.com/rubenlagus/TelegramBots/releases/tag/v2.3.3.7)
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In order to use Long Polling mode, just create your own bot extending `org.telegram.telegrambots.bots.TelegramLongPollingBot`.
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@ -46,6 +46,8 @@ Once done, you just need to create a `org.telegram.telegrambots.TelegramBotsApi`
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```
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For detailed explanation, visite our [How To](HOWTO.md) (thanks Clevero)
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## Example bots
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Open them and send them */help* command to get some information about their capabilities:
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2
pom.xml
2
pom.xml
@ -6,7 +6,7 @@
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<packaging>jar</packaging>
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<groupId>org.telegram</groupId>
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<artifactId>telegrambots</artifactId>
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<version>2.3.3.6</version>
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<version>2.3.3.7</version>
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<name>Telegram Bots</name>
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<url>https://telegram.me/JavaBotsApi</url>
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@ -4,6 +4,7 @@ import org.telegram.telegrambots.api.objects.replykeyboard.ReplyKeyboard;
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import java.io.File;
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import java.io.InputStream;
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import java.util.Objects;
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/**
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* @author Ruben Bermudez
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@ -111,7 +112,10 @@ public class SendAudio {
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return this;
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}
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public SendAudio setNewAudio(InputStream inputStream) {
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public SendAudio setNewAudio(String audioName, InputStream inputStream) {
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Objects.requireNonNull(audioName, "audioName cannot be null!");
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Objects.requireNonNull(inputStream, "inputStream cannot be null!");
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this.audioName = audioName;
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this.isNewAudio = true;
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this.newAudioStream = inputStream;
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return this;
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@ -4,6 +4,7 @@ import org.telegram.telegrambots.api.objects.replykeyboard.ReplyKeyboard;
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import java.io.File;
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import java.io.InputStream;
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import java.util.Objects;
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/**
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* @author Ruben Bermudez
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@ -93,12 +94,10 @@ public class SendDocument {
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return this;
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}
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/**
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* Use this method to set the document to a new file
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*
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* @param inputStream New document file
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*/
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public SendDocument setNewDocument(InputStream inputStream) {
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public SendDocument setNewDocument(String documentName, InputStream inputStream) {
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Objects.requireNonNull(documentName, "documentName cannot be null!");
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Objects.requireNonNull(inputStream, "inputStream cannot be null!");
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this.documentName = documentName;
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this.isNewDocument = true;
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this.newDocumentStream = inputStream;
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return this;
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@ -4,6 +4,7 @@ import org.telegram.telegrambots.api.objects.replykeyboard.ReplyKeyboard;
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import java.io.File;
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import java.io.InputStream;
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import java.util.Objects;
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/**
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* @author Ruben Bermudez
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@ -171,7 +172,10 @@ public class SendPhoto {
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return this;
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}
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public SendPhoto setNewPhoto(InputStream inputStream) {
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public SendPhoto setNewPhoto(String photoName, InputStream inputStream) {
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Objects.requireNonNull(photoName, "photoName cannot be null!");
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Objects.requireNonNull(inputStream, "inputStream cannot be null!");
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this.photoName = photoName;
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this.newPhotoStream = inputStream;
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this.isNewPhoto = true;
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return this;
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@ -4,6 +4,7 @@ import org.telegram.telegrambots.api.objects.replykeyboard.ReplyKeyboard;
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import java.io.File;
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import java.io.InputStream;
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import java.util.Objects;
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/**
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* @author Ruben Bermudez
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@ -130,7 +131,10 @@ public class SendSticker {
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return this;
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}
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public SendSticker setNewSticker(InputStream inputStream) {
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public SendSticker setNewSticker(String stickerName, InputStream inputStream) {
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Objects.requireNonNull(stickerName, "stickerName cannot be null!");
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Objects.requireNonNull(inputStream, "inputStream cannot be null!");
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this.stickerName = stickerName;
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this.isNewSticker = true;
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this.newStickerStream = inputStream;
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return this;
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@ -4,6 +4,7 @@ import org.telegram.telegrambots.api.objects.replykeyboard.ReplyKeyboard;
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import java.io.File;
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import java.io.InputStream;
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import java.util.Objects;
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/**
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* @author Ruben Bermudez
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@ -205,7 +206,10 @@ public class SendVideo {
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return this;
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}
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public SendVideo setNewVideo(InputStream inputStream) {
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public SendVideo setNewVideo(String videoName, InputStream inputStream) {
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Objects.requireNonNull(videoName, "videoName cannot be null!");
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Objects.requireNonNull(inputStream, "inputStream cannot be null!");
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this.videoName = videoName;
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this.isNewVideo = true;
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this.newVideoStream = inputStream;
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return this;
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@ -4,6 +4,7 @@ import org.telegram.telegrambots.api.objects.replykeyboard.ReplyKeyboard;
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import java.io.File;
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import java.io.InputStream;
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import java.util.Objects;
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/**
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* @author Ruben Bermudez
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@ -144,7 +145,10 @@ public class SendVoice {
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return this;
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}
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public SendVoice setNewVoice(InputStream inputStream) {
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public SendVoice setNewVoice(String voiceName, InputStream inputStream) {
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Objects.requireNonNull(voiceName, "voiceName cannot be null!");
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Objects.requireNonNull(inputStream, "inputStream cannot be null!");
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this.voiceName = voiceName;
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this.isNewVoice = true;
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this.newVoiceStream = inputStream;
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return this;
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@ -519,7 +519,7 @@ public abstract class AbsSender {
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if (sendDocument.getNewDocumentFile() != null) {
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builder.addBinaryBody(SendDocument.DOCUMENT_FIELD, sendDocument.getNewDocumentFile());
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} else if (sendDocument.getNewDocumentStream() != null) {
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builder.addBinaryBody(SendDocument.DOCUMENT_FIELD, sendDocument.getNewDocumentStream());
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builder.addBinaryBody(SendDocument.DOCUMENT_FIELD, sendDocument.getNewDocumentStream(), ContentType.APPLICATION_OCTET_STREAM, sendDocument.getDocumentName());
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} else {
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builder.addBinaryBody(SendDocument.DOCUMENT_FIELD, new java.io.File(sendDocument.getDocument()), ContentType.APPLICATION_OCTET_STREAM, sendDocument.getDocumentName());
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}
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@ -550,7 +550,7 @@ public abstract class AbsSender {
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if (sendDocument.getCaption() != null) {
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nameValuePairs.add(new BasicNameValuePair(SendDocument.CAPTION_FIELD, sendDocument.getCaption()));
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}
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if (sendDocument.getReplyToMessageId() != null) {
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if (sendDocument.getDisableNotification() != null) {
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nameValuePairs.add(new BasicNameValuePair(SendDocument.DISABLENOTIFICATION_FIELD, sendDocument.getDisableNotification().toString()));
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}
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||||
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs, StandardCharsets.UTF_8));
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||||
@ -585,7 +585,7 @@ public abstract class AbsSender {
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||||
if (sendPhoto.getNewPhotoFile() != null) {
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builder.addBinaryBody(SendPhoto.PHOTO_FIELD, sendPhoto.getNewPhotoFile());
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||||
} else if (sendPhoto.getNewPhotoStream() != null) {
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||||
builder.addBinaryBody(SendPhoto.PHOTO_FIELD, sendPhoto.getNewPhotoStream());
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||||
builder.addBinaryBody(SendPhoto.PHOTO_FIELD, sendPhoto.getNewPhotoStream(), ContentType.APPLICATION_OCTET_STREAM, sendPhoto.getPhotoName());
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} else {
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||||
builder.addBinaryBody(SendPhoto.PHOTO_FIELD, new java.io.File(sendPhoto.getPhoto()), ContentType.APPLICATION_OCTET_STREAM, sendPhoto.getPhotoName());
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||||
}
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||||
@ -651,7 +651,7 @@ public abstract class AbsSender {
|
||||
if (sendVideo.getNewVideoFile() != null) {
|
||||
builder.addBinaryBody(SendVideo.VIDEO_FIELD, sendVideo.getNewVideoFile());
|
||||
} else if (sendVideo.getNewVideoStream() != null) {
|
||||
builder.addBinaryBody(SendVideo.VIDEO_FIELD, sendVideo.getNewVideoStream());
|
||||
builder.addBinaryBody(SendVideo.VIDEO_FIELD, sendVideo.getNewVideoStream(), ContentType.APPLICATION_OCTET_STREAM, sendVideo.getVideoName());
|
||||
} else {
|
||||
builder.addBinaryBody(SendVideo.VIDEO_FIELD, new java.io.File(sendVideo.getVideo()), ContentType.APPLICATION_OCTET_STREAM, sendVideo.getVideoName());
|
||||
}
|
||||
@ -736,7 +736,7 @@ public abstract class AbsSender {
|
||||
if (sendSticker.getNewStickerFile() != null) {
|
||||
builder.addBinaryBody(SendSticker.STICKER_FIELD, sendSticker.getNewStickerFile());
|
||||
} else if (sendSticker.getNewStickerStream() != null) {
|
||||
builder.addBinaryBody(SendSticker.STICKER_FIELD, sendSticker.getNewStickerStream());
|
||||
builder.addBinaryBody(SendSticker.STICKER_FIELD, sendSticker.getNewStickerStream(), ContentType.APPLICATION_OCTET_STREAM, sendSticker.getStickerName());
|
||||
} else {
|
||||
builder.addBinaryBody(SendSticker.STICKER_FIELD, new java.io.File(sendSticker.getSticker()), ContentType.APPLICATION_OCTET_STREAM, sendSticker.getStickerName());
|
||||
}
|
||||
@ -804,7 +804,7 @@ public abstract class AbsSender {
|
||||
if (sendAudio.getNewAudioFile() != null) {
|
||||
builder.addBinaryBody(SendAudio.AUDIO_FIELD, sendAudio.getNewAudioFile());
|
||||
} else if (sendAudio.getNewAudioStream() != null) {
|
||||
builder.addBinaryBody(SendAudio.AUDIO_FIELD, sendAudio.getNewAudioStream());
|
||||
builder.addBinaryBody(SendAudio.AUDIO_FIELD, sendAudio.getNewAudioStream(), ContentType.APPLICATION_OCTET_STREAM, sendAudio.getAudioName());
|
||||
} else {
|
||||
builder.addBinaryBody(SendAudio.AUDIO_FIELD, new java.io.File(sendAudio.getAudio()), ContentType.create("audio/mpeg"), sendAudio.getAudioName());
|
||||
}
|
||||
@ -893,7 +893,7 @@ public abstract class AbsSender {
|
||||
if (sendVoice.getNewVoiceFile() != null) {
|
||||
builder.addBinaryBody(SendVoice.VOICE_FIELD, sendVoice.getNewVoiceFile());
|
||||
} else if (sendVoice.getNewVoiceStream() != null) {
|
||||
builder.addBinaryBody(SendVoice.VOICE_FIELD, sendVoice.getNewVoiceStream());
|
||||
builder.addBinaryBody(SendVoice.VOICE_FIELD, sendVoice.getNewVoiceStream(), ContentType.APPLICATION_OCTET_STREAM, sendVoice.getVoiceName());
|
||||
} else {
|
||||
builder.addBinaryBody(SendVoice.VOICE_FIELD, new java.io.File(sendVoice.getVoice()), ContentType.create("audio/ogg"), sendVoice.getVoiceName());
|
||||
}
|
||||
|
||||
@ -50,7 +50,6 @@ public abstract class TelegramLongPollingCommandBot extends TelegramLongPollingB
|
||||
}
|
||||
|
||||
/**
|
||||
* function message filter.
|
||||
* Override this function in your bot implementation to filter messages with commands
|
||||
*
|
||||
* For example, if you want to prevent commands execution incoming from group chat:
|
||||
@ -58,12 +57,13 @@ public abstract class TelegramLongPollingCommandBot extends TelegramLongPollingB
|
||||
* # return !message.getChat().isGroupChat();
|
||||
* #
|
||||
*
|
||||
* @note Default implementation doesn't filter anything
|
||||
* @param message Received message
|
||||
* @return true if the message must be ignored by the command bot and treated as a non command message,
|
||||
* false otherwise
|
||||
*/
|
||||
protected boolean filter(Message message) {
|
||||
return true;
|
||||
return false;
|
||||
}
|
||||
|
||||
@Override
|
||||
|
||||
Loading…
Reference in New Issue
Block a user