Sample HTTP server in Ruby

simple ruby framework.rb

require 'socket'

class Handler
  def initialize(port)
    @server = TCPServer.new(port)
  end

  def start
    loop do
      client = @server.accept
      handle_client(client)
    end
  end

  def handle_client(client)
    request = read_request(client)
    response = process_request(request)
    client.puts response
    client.close
  end

  def read_request(client)
    request = ''
    while (line = client.gets) && !line.chomp.empty?
      request += line
    end
    request
  end

  def process_request(request)
    method, path, version = request.lines[0].split
    if method == "GET" && path == "/hello"
      "HTTP/1.1 200 OK\r\nContent-Type: text/plain\r\n\r\nHello World!\n"
    else
      "HTTP/1.1 404 Not Found\r\nContent-Type: text/plain\r\n\r\n404 Not Found\n"
    end
  end
end

server = Handler.new(3000)
puts "Running on http://localhost:3000"
server.start

# This is code from https://www.reddit.com/r/ruby/comments/12zsvqe/comment/jhu9y9g/