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A quick example of a Twitch chat bot using Ruby.
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| # A quick example of a Twitch chat bot in Ruby. No third party libraries. Just Ruby standard lib. | |
| # | |
| # This software is made available under the MIT License. | |
| # Copyright (C) 2025 Brandon Rice | |
| # | |
| # Permission is hereby granted, free of charge, to any person obtaining a copy | |
| # of this software and associated documentation files (the "Software"), to deal | |
| # in the Software without restriction, including without limitation the rights | |
| # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
| # copies of the Software, and to permit persons to whom the Software is | |
| # furnished to do so, subject to the following conditions: | |
| # | |
| # The above copyright notice and this permission notice shall be included in all | |
| # copies or substantial portions of the Software. | |
| # | |
| # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
| # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
| # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
| # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
| # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
| # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
| # SOFTWARE. | |
| # You can fill in creds here or use environment variables if you choose. | |
| TWITCH_CHAT_TOKEN = ENV['TWITCH_CHAT_TOKEN'] | |
| TWITCH_USER = ENV['TWITCH_USER'] | |
| require 'socket' | |
| require 'logger' | |
| Thread.abort_on_exception = true | |
| class Twitch | |
| attr_reader :logger, :running, :socket | |
| def initialize(logger = nil) | |
| @logger = logger || Logger.new(STDOUT) | |
| @running = false | |
| @socket = nil | |
| end | |
| def send(message) | |
| logger.info "< #{message}" | |
| socket.puts(message) | |
| end | |
| def run | |
| logger.info 'Preparing to connect...' | |
| @socket = TCPSocket.new('irc.chat.twitch.tv', 6667) | |
| @running = true | |
| socket.puts("PASS #{TWITCH_CHAT_TOKEN}") | |
| socket.puts("NICK #{TWITCH_USER}") | |
| logger.info 'Connected...' | |
| Thread.start do | |
| while (running) do | |
| ready = IO.select([socket]) | |
| ready[0].each do |s| | |
| line = s.gets | |
| match = line.match(/^:(.+)!(.+) PRIVMSG #(\w+) :(.+)$/) | |
| message = match && match[4] | |
| if message =~ /^!hello/ | |
| user = match[1] | |
| logger.info "USER COMMAND: #{user} - !hello" | |
| send "PRIVMSG #open_mailbox :Hello, #{user} from Mailbot!" | |
| end | |
| logger.info "> #{line}" | |
| end | |
| end | |
| end | |
| end | |
| def stop | |
| @running = false | |
| end | |
| end | |
| if TWITCH_CHAT_TOKEN.empty || TWITCH_USER.empty? | |
| puts "You need to fill in your own Twitch credentials!" | |
| exit(1) | |
| end | |
| bot = Twitch.new | |
| bot.run | |
| while (bot.running) do | |
| command = gets.chomp | |
| if command == 'quit' | |
| bot.stop | |
| else | |
| bot.send(command) | |
| end | |
| end | |
| puts 'Exited.' |
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🌊!
Your code is amazing. Please put a license on this :>