`invite all members to [channel name] for [topic]` でチャンネルを作ってトピックを設定して全メンバをチャンネルに入れるBOTのコード

invite_all_members.rb

require 'slack-ruby-client'

Slack::Web::Client.configure do |config|
  config.token = ENV['SLACK_API_USER_TOKEN']
  raise 'Missing ENV[SLACK_API_USER_TOKEN]!' unless config.token

  STDOUT.sync = true

  config.logger = Logger.new(STDOUT)
  config.logger.level = Logger::INFO
end

Slack::RealTime::Client.configure do |config|
  config.token = ENV['SLACK_API_BOT_TOKEN']
  raise 'Missing ENV[SLACK_API_BOT_TOKEN]!' unless config.token

  STDOUT.sync = true

  config.logger = Logger.new(STDOUT)
  config.logger.level = Logger::INFO
end

web = Slack::Web::Client.new
rtm = Slack::RealTime::Client.new

rtm.on :message do |data|
  case data.text
  when /invite all members to (\S+) for (.+)/
    if $2.nil?
      payload = {
        channel: data.channel,
        text: 'Command Error: invite all members to [channel name] for [topic]',
        as_user: false
      }
      web.chat_postMessage(payload)
    else
      channel_id = web.channels_create(name: $1).channel['id']
      web.channels_setTopic(channel: channel_id, topic: $2)
      web.users_list.members.each do |member|
        next if member['is_bot']
        begin
          web.channels_invite(channel: channel_id, user: member['id'])
        rescue Slack::Web::Api::Errors::SlackError
          next
        end
      end
    end
  end
end

rtm.start!