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Telegram Bot: Is it possible to get userid using username? – Telegram API

As the title says, is it possible to get userid using username?
I mean, I would like to add a feature to my bot that tells you the user id from an other user using his username.

Does Telegram API give an option to do this?

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4

Answers


  1. 0

    No. It’s not possible right now.

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  2. 0

    I believe what you mean by nickname is the username and userid is the unique id as described in the API documentation.It is still possible to do a reverse lookup using a bot.

    This is possible with a boosted version of the Official Telegram API, known as PWRTelegram API

    I quote from the documentation.

    Resolving of usernames not only with channels and groups but also with
    normal users and bots

    Update:

    Here is a library I made for this purpose:

    Update 2:

    I no longer maintain the above library, you can however still resolve usernames with a td-cli binary.

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  3. 0

    You can use the pwrtelegram bot API to resolve usernames of bots and normal users.

    It will automagically resolve the usernames you provide in the chat_id parameter using a built in mtproto client.

    You can use usernames of bots and normal users in every method that requires the chat_id parameter, but to get info about a user/bot you can use the getChat method.

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  4. 0

    The solution by Mohammod Sohail is partially wrong.

    There are ways to get a user_id from username, but online tools mentioned above use more than the bot API. They have a telegram client running on their server.
    That said there is a trick to get a user_id from username purely with bot API (doen’t always work).

    Lets say you are chatting with your friend X and you want to know his user_id. To get the user_id, forward one of your conversations to your bot. The bot will get the message author’s first name, username, user_id, timestamp, and so on in JSON format. Now you can extract the user_id from that. Note that this also works even if the user does not have a username, or if its a channel or another bot.

    Here is an bot implementation of the above:

    I’ve forwarded one of my friend’s message to the bot @get_id_bot
    Then the bot returns the username and id of my friend’s account

    GET ID BOT

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