emhiredis example

emhiredis.rb

require 'em-hiredis'

module EMServer
  def post_init
    puts "-- someone connected to the echo server!"
  end

  def receive_data data
    redis = EM::Hiredis.connect
    redis.callback do
      op = redis.get key
      op.callback do |value| 
        send_data value
        close_connection_after_writing
      end
    end
  end

  def unbind
    puts "-- someone disconnected"
  end
end

EM.run {
  EM.start_server "127.0.0.1", 8081, EMServer
  puts 'running echo server on 8081'
}