How can I get group details by @link using Telebot library

Question

I want to create a bot that posts messages on channels / groups, the user sends the group address for example: @group_name, and I need to get the ID, title I work with telebot library

@bot.message_handler(commands=['addgroup'])
def add_group(message):
    msg = bot.send_message(message.chat.id, 'Send group link without @')
    bot.register_next_step_handler(msg, add)

def add(message):
    url = "telegram.me/" + message.text
    keyboard = types.InlineKeyboardMarkup()
    keyboard.add(types.InlineKeyboardButton("##HERE I NEED GROUP NAME##", url=url))
    msg = bot.send_message(message.chat.id, "Add this group?", reply_markup=keyboard)
    bot.register_next_step_handler(msg, check_group)
    ....

How can I get this information?

Answer 1

Let's read telegram docs...

getChat

Use this method to get up to date information about the chat (current name of the user for one-on-one conversations, current username of a user, group or channel, etc.). Returns a Chat object on success.

Parameters: chat_id - unique identifier for the target chat or username of the target supergroup or channel (in the format @channelusername).

So,

chat = bot.get_chat('@username')

P.S.: register_next_step_handler is antipattern, use aiogram's FSM instead.