Opening join chat url with answerCallbackQuery?

[jagzmz]

How can I open/prompt user for joining private chat with the help of Inline Button. My use case is to authenticate the user beforehand, after that he will be prompted to join with link to the private chat.

I cannot use inline button with url (which actually does the job) but does not trigger hook "callback_query" and opens the link straight away!

answerCallbackQuery with url only supports url like "t.me/@bot_user_name?start=xxx".

I have seen some groups doing this, how can I achieve this functionality?

[jagzmz]

Bump!