Get User's username in a chat with Telegram Bot about botogram HOT 4 CLOSED

Hi @abhi3700, thanks for your issue!
In username_callback, you don't need to initialize a new botogram.User(), you need the user that sent the query. You can access its botogram.User instance in query.sender; so, the code will be:

@bot.callback("username")
def username_callback(query, chat, message):
    user = query.sender
    chat.send(user.username)
    query.notify("{username} saved.".format(username=user.username)

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Thanks @MarcoBuster. I can't thank you enough for your reply.
It worked.

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what if user have not username? (:

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what if user have not username? (:

We can have user.id field. It's mandatory in telegram.
I would recommend using this repo instead, as there is no activity since 2020.

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