sudo apt-get install libzmq3-dev

pip install zmq

#coding: utf-8

import zmq

context = zmq.Context()

sock = context.socket(zmq.REQ)

sock.connect("tcp://127.0.0.1:55555")

sock.send_unicode("asdasd")

print(sock.recv_unicode())

#coding: utf-8

import zmq

context = zmq.Context()

sock = context.socket(zmq.REP)

sock.bind("tcp://127.0.0.1:55555")

while True:

    message = sock.recv_unicode()

    sock.send_unicode(message)

require 'ffi-rzmq'

context = ZMQ::Context.new(1)

client_socket = context.socket(ZMQ::REQ)

client_socket.connect("tcp://127.0.0.1:5555")

client_socket.send_string("")

loop do

  message = ""

  return_code = client_socket.recv_string message

  if return_code <= 0

    next

  end

  puts "client get #{message}"

  client_socket.send_string message

end

require 'ffi-rzmq'

context = ZMQ::Context.new(1)

server_socket = context.socket(ZMQ::REP)

server_socket.bind("tcp://*:5555")

loop do

  message = ""

  return_code = server_socket.recv_string(message)

  if return_code <= 0

    next

  end

  puts "server get #{message}"

  server_socket.send_string(message)

end

https://github.com/vishnugopal/zeromq-demo