require "nats/client"

client = NATS::Client.new("nats://localhost:4222")
client.connect

client.subscribe("foo") do |msg|
  puts "Received message on subject #{msg.subject}: #{msg.payload}"
end

client.publish("foo", "Hello, NATS!")

client.subscribe("bar") do |msg|
  msg.reply "Received your message on bar: #{msg.payload}"
end

response = client.request("bar", "Hello, bar!")
puts "Received response: #{response.payload}"

client.request("bar") do |msg|
  puts "Recieved async response: #{msg.payload}"
end

client.close