JSONSocket - Ruby server class snippet

json_server.rb

def initialize
   @server = TCPServer.new 19024
end

def start
   @server_thread = Thread.new do
      @client_thread = Thread.start(@server.accept) do |client|
         puts "server: Accepted client connection!"
         send_request(client, 'greeting', :message => 'Hello client!')
         receive_response(client)
         send_request(client, 'shutdown')
         receive_response(client)
         client.close
      end
   end
end

...

def send_request(client, command, args={})
   data = {'request' => {'command' => command}}
   data['request'].merge!(args)
   request = JSON.generate(data)
   client.print request
   if args[:message]
      puts "server: >> #{args[:message]}"
   end
end

def receive_response(client)
   response = client.recv(1024)
   data = JSON.parse(response)
   if data['response'] && data['response']['message']
      puts "server: << #{data['response']['message']}"
   end
   return data
end