How can I build a chat server using EventMachine?

How can I build a chat server using EventMachine?

To build a chat server with EventMachine, you'll need to install the EventMachine gem and set up a basic server.

What are the key features I should implement in my chat server?

Key features include user authentication, message broadcasting, and handling multiple connections.

Can you provide a simple code example?

Sure! Here's a basic example:

require 'eventmachine'

EM.run do
  EM.start_server '0.0.0.0', 8081, ChatServer
end

class ChatServer < EM::Connection
  def post_init
    puts 'Client connected'
  end

  def receive_data(data)
    puts "Received: #{data}"
    send_data "Echo: #{data}"
  end
end