Code Snippet for playing youtube videos (as mp3s) in discord using youtube-dl and discordrb

DiscordYoutubeBot.rb

#Install libsodium (python3-nacl and libsodium-dev worked for me), libopus (libopusfile0 and libopus0 worked for me), ffmpeg
#Install https://github.com/rg3/youtube-dl
require 'discordrb'
$isplaying = 0
bot = Discordrb::Commands::CommandBot.new token: token, client_id: clientid, prefix: '.'
bot.command(:play) do |event, songlink|
  if $isplaying == 1
    event.message.delete
    event.respond 'Already playing music'
    break
  end
  channel = event.user.voice_channel
  unless channel.nil?
    voice_bot = bot.voice_connect(channel)
    system("youtube-dl --no-playlist --max-filesize 50m -o 'music/s.%(ext)s' -x --audio-format mp3 #{songlink}")
    event.respond "Playing"
    $isplaying = 1
    voice_bot.play_file('./music/s.mp3')
    voice_bot.destroy
    $isplaying = 0
    break
  end
  'You\'re not in any voice channel!'
end

bot.command(:stop) do |event|
  $isplaying = 0
  event.voice.stop_playing
  bot.voices[event.server.id].destroy
  nil
end

Might wanna update this to https://github.com/Cyan101/sapphire/blob/master/modules/youtube.rb minus the youtube search stuff, just because this code can only be playing in 1 server >.<