I am having an issue to get a telegram user id using his username. there are few scenarios that I want to know is that possible or not
- if we have a username of any user, can we get his/her user id from @userinfobot?
- can we receive messages from the user using Bot?
- how to hide input option from a bot?
- how to add predefined buttons instead of an input field?
- also, if a user adds our bot can we programmatically press the join button for him?
it will be a great help if anyone can answer the questions. Thank you.