zmq_server.jl

using JSON
using ZMQ

const ctx = Context()
sock = Socket(ctx, REP)
ZMQ.bind(sock, "tcp://*:7788")

function triple(x)
	sleep(10)
	3x
end

while true
	println("Server running.")

	msg = JSON.parse(bytestring(ZMQ.recv(sock)))
	
	result =""
	try
		result = triple(float(msg["value"]))
	catch
		result = "julia function returned an error"
	end
	println(result)
	
	ZMQ.send(sock, JSON.json({"result"=>result}))
end