How can I check if a person, through an invitation link, has brought more people to subscribe to my telegram channel?

Question

I'm using Telebot with node.js and create my bot. In my bot, for each people, i send an invitation link about a Telegram Group.. i want the people, forward the link to friends and i want to check how many people join in my telegram group using that link. If a person brought three friends to join, then I give him a prize.

Answer 1

You should set/get user ID in the link, like t.me/examplebot?start=yourString. When you start the bot with this link you'll get the text /start yourString so you can handle it.

As I know you can't do this with group or channel link so the bot can't read any parameters.