How to use hooks with slack-ruby-bot

[kanwardeep007]

I have started making a bot for attendance where a user will be marked as present as soon as his presence_change attribute for slack RTM is active and exit when this is away. I want to implement a web hook for this event. I am currently using rails as the framework in which I have the following code

class PongBot < SlackRubyBot::Bot
  ENV['SLACK_API_TOKEN'] = Rails.application.secrets.slack_api_token
  match 'present' do |client, data, match|
    user_id = "#{data[:user]}"
    user = Employee.find_by(slack_id: user_id)
    Attendance.create(entry: DateTime.now,employee_id: user.id)
    client.say(text: "Marked <@#{data.user}> as present at #{DateTime.now.strftime('%B %d, %Y  %I:%M:%S %p')}", channel: data.channel)
  end
end

Can some one kindly guide me as to how to implement hooks for this purpose and also how to add custom functionality for this gem. I am new to adding custom functionality to gems and how to make use of the existing libraries.

Help appreciated.
:)

[dblock]

There's lots of detail in https://github.com/slack-ruby/slack-ruby-bot#hooks. You need to get hold of the server instance, then do on :presence_change. Depending on where you start this instance of PongBot, you probably just want PongBot.instance.on :presence_change.

PongBot.instance.on(:presence_change, ->(client, data) { ... })

I'll close this for now, but feel free to add more questions!

[skolsuper]

@dblock first of all, thanks so much for writing this gem! As a noob to ruby, it's not clear how to "get hold of the server instance" from inside my SlackRubyBot::Bot subclass' body. An example in the README would be great if you have time.

It would be nice if some common hooks could be defined alongside command, e.g. :

  class MyBot < SlackRubyBot::Bot
    command 'ping' do |client, data|
      client.say(text: 'pong', channel: data.channel)
    end

    hello do |client, data|
      ...
    end
    
    # or
    hook 'hello' do |client, data|
      ...
    end
  end

[dblock]

I agree. Please try to contribute!

I opened #211