This repository contains an example of telegram bot written in Java (11 and above)

Current version supports the following commands:

• /help - Displays help about all or specified command
• /whoami - Displays information about the person who wrote the command: User Id, Name and chat type
• /start - The default bot command, shows greeting message
• /menu - Shows example of Inline Menu with buttons

Configuration is supplied through Environment Variables:

EXAMPLE_TG_BOT_USERNAME=ExampleTelegramBot # The bot name from BotFather
EXAMPLE_TG_BOT_TOKEN=123455:abcd.. # The token from BotFather
EXAMPLE_TG_BOT_ADMIN_IDS=123456 # User ids separated by comma, allowing them to access /menu (You can obtain that id by typing /whoami)

Click here to talk to BotFather

There are multiple ways to start this example, here are two:

You can run this example with docker.

First create new file called .env with the content mentioned Environment Variables above.

1. Create and start the container

   docker-compose up -d

2. Check the logs for errors

   docker-compose logs

3. If bot is working correctly you should see the following logs

   Attaching to example_telegram_bot
   example_telegram_bot | [20:30:06] [INFO] Main: Initializing ** Your bot name here** ...
   example_telegram_bot | [20:30:06] [INFO] Main: Authorized admin ids: [**Your ids here**]
   example_telegram_bot | [20:30:07] [INFO] Main: Initialization done

4. If you want to stop the bot

   docker-compose down

Alternatively you can run the example from source

1. Clone the repository

   git clone https://github.com/UnAfraid/ExampleTelegramBot.git

2. Build the source

   # For Windows
   gradlew.bat installDist
   
   # For Linux/Mac
   ./gradlew installDist

3. Run the bot

   # Set Environment Variables
   
   # For Windows
   set EXAMPLE_TG_BOT_USERNAME=ExampleTelegramBot # The bot name from BotFather
   set EXAMPLE_TG_BOT_TOKEN=123455:abcd.. # The token from BotFather
   set EXAMPLE_TG_BOT_ADMIN_IDS=123456 # User ids separated by comma, allowing them to access /menu (You can obtain that id by typing /whoami)
   
   # For Linux/Mac
   export EXAMPLE_TG_BOT_USERNAME=ExampleTelegramBot # The bot name from BotFather
   export EXAMPLE_TG_BOT_TOKEN=123455:abcd.. # The token from BotFather
   export EXAMPLE_TG_BOT_ADMIN_IDS=123456 # User ids separated by comma, allowing them to access /menu (You can obtain that id by typing /whoami)
   
   # Navigate to the bot build directory
   cd build/install/ExampleTelegramBot
   
   # Run the bot
   java --add-opens java.base/java.lang=ALL-UNNAMED -jar ExampleTelegramBot.jar

4. If bot is working correctly you should see the following logs

   [20:30:06] [INFO] Main: Initializing ** Your bot name here** ...
   [20:30:06] [INFO] Main: Authorized admin ids: [**Your ids here**]
   [20:30:07] [INFO] Main: Initialization done