How to make a Telegram Echo Bot in Python Using Pyrogram ? - YouTube
python - How can a telegram bot receive photo which are attached to commands in telegram group chats without privacy mode? - Stack Overflow
Telegram bot EchoBot — @EchoBot
GitHub - sooyhwang/Simple-Echo-Telegram-Bot: A simple Python Telegram bot that echoes your input. Uses Flask, setWebhook method, and Google App Engine (optional)
How to create a Telegram Bot using Microsoft Bot Framework and Node.JS