how to send a personal message to a user?

[icy]

I have a bot that will send personal message (PM) to the user who has invoked a bot command on the group. How to get this?

Thanks.

[dkam]

I did it like this, but I'd like to see an example in the README, because I've no idea if this is how it should be done. The user_name, user_id variables come from a previous interaction.

bot = TelegramBot.new(token: TELEGRAPH_KEY)

c = TelegramBot::Channel.new
c.username = user_name
c.id = user_id

o = TelegramBot::OutMessage.new
o.chat = c
o.text = "Hello"
o.send_with(bot)

[icy]

Thanks a lot, @dkam !

[eljojo]

hi everyone, I am really sorry I have been super busy.
I also haven't had the chance to play recently with telegram's API, so I haven't been following so closely the newest developments.

The username is not needed, so you can do just this:

bot = TelegramBot.new(token: TELEGRAM_KEY)

channel = TelegramBot::Channel.new(id: user_id)

o = TelegramBot::OutMessage.new
o.chat = channel
o.text = "Hello"
o.send_with(bot)

Because Users respond to #id, and in Telegram, a user id is also a valid channel, you can also do the following:

user = TelegramBot::User.new(id: user_id)

out_message = TelegramBot::OutMessage.new
out_message.chat = user
out_message.text = "Hello"
out_message.send_with(bot)

I was just going through the code and GroupChat has no method that returns you some array with all the Users.
Maybe it'd be useful to have GroupChat returning an array with all the users, and also in User, defining a method with some nice DSL along the lines of:

bot.get_updates do |message|
  if message.group_chat?
    channel_members = message.chat.users # array of User
    user = channel_members.first
    user.new_message do |answer|
      answer.text = "Hello #{user.first_name}"
      answer.send_with(bot)
    end
  end
end

Any ideas?