This bot uses simple auth via private Telegram group - bot will not work with users that are not members of some private group.

1. Register at https://platform.openai.com/
2. Create new API key: https://platform.openai.com/account/api-keys. Save it somewhere.
3. Create telegram bot via message to https://t.me/BotFather. Save bot token somewhere.
4. Create private group and add bot to it. Save somewhere ID of the group (ex. '-123456789'). You can find group ID in Telegram Web by opening the group and get ID from URL - like https://web.telegram.org/k/#-123456789, where ID is -123456789
5. Add trusted users to private group you created.
6. (optional) Create .env file with variables you need.

You can set TELEGRAM_AUTH_GROUP_ID, TELEGRAM_BOT_TOKEN, OPENAI_API_KEY in your env.

Or you can pass it to node directly.

TELEGRAM_AUTH_GROUP_ID='...' TELEGRAM_BOT_TOKEN='...' OPENAI_API_KEY='...' node server.js

docker run --rm -d \
 -e TELEGRAM_AUTH_GROUP_ID='...' \
 -e TELEGRAM_BOT_TOKEN='...' \
 -e OPENAI_API_KEY='...'\
 kemmor/chatgpt-telegram-bot:latest

The MIT License (MIT)