We're looking for experienced Telegram API developer to programmatically check if a phone number is registered in the Telegram. So the developer can check if phone number is registered in the Telegram, then if exist, just get the username.
If you can do it, please add "It's easy to do it" on your head of proposal.
10 фрилансеров(-а) в среднем готовы выполнить эту работу за $267
It's easy to do it. Hello, Sir. As I said earlier, It is easy to do it. One question is the program language what you want. Best Regards. Thank you.