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TelegramBotAPI-examples/HelloBot/README.md
2026-05-07 17:18:24 +06:00

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# HelloBot
A minimal bot that responds whenever someone mentions the bot's username in a chat.
## Functionality
Listens for any message that contains the bot's username mention. When triggered, replies with
`Oh, hi, ` followed by a mention of the sender (or the group/channel name for non-private chats).
Uses MarkdownV2 formatting and adapts the reply text based on the chat type.
## Arguments
| Position | Value | Description |
|----------|-------|-------------|
| 1 | `BOT_TOKEN` | Telegram bot token |
Optional arguments (any order after the token):
| Value | Description |
|-------|-------------|
| `debug` | Enable verbose debug logging |
| `testServer` | Connect to the Telegram test server instead of production |
## Bot Commands
None. The bot is triggered by username mentions, not commands.
## Capabilities
- Detects mentions of the bot username in all chat types (private, group, supergroup, channel, business)
- Builds a MarkdownV2-formatted reply that links back to the sender
- For public chats the reply contains a clickable mention link; for private chats it uses a text mention
- Runs via long polling
## Launch
```bash
../gradlew run --args="BOT_TOKEN"
```