When the user sends a message containing a URL, the bot extracts the URL and sends several reply messages, each with a different LinkPreviewOptions configuration: disabled, small preview above text, large preview above text, small preview below text, large preview below text, and the default (no explicit options).

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.

Capabilities

Extracts URLs from the text entities of incoming messages
Sends one reply per LinkPreviewOptions variant:
- Preview disabled
- Small image, positioned above text
- Large image, positioned above text
- Small image, positioned below text
- Large image, positioned below text
- Default (Telegram-chosen behaviour)
Runs via long polling

Launch

../gradlew run --args="BOT_TOKEN"