PHP react parallel requests - php

Question

I have an app which communicate through websocket with my server. I am using Ratchet and everything works perfect. The next thing i want to implement is to make requests to some other server and push responses through websocket to clients. My question is how to make parallel requests with react. Let say i have 5 endpoints which response i want to get parallel (thread). I want to call each endpoint every .2s for example and send response to websocket server clients. For example (this is just demonstration code):
$server->loop->addPeriodicTimer(.2, function ($timer) {
curl('endpoint1');
});
$server->loop->addPeriodicTimer(.2, function ($timer) {
curl('endpoint2');
});
$server->loop->addPeriodicTimer(.2, function ($timer) {
curl('endpoint3');
});
But this timer does not work this way. Is it even possible to achive this with react?
Im am not showing websocket code because communication between clients works nice.

Answer 1

To start. "React (Ratchet)" - operate in one thread mode (feature libevent). That is, anything that will block the process - bad idea... Curl request - will stop work socket server until it receives a response.
For your application - I would use ZMQ.
The point is this:
you run worker process (for example: ZMQWorker),
your server sends curl-data on ZMQWorker (via ZMQ).
ZMQWorker send Curl request
after sending the request, ZMQWorker send a response to the WebSocket
(via ZMQ). It you can get via reactphp/zmq
If you need to send a lot of concurrent requests - You will need pthread library - it provides multi-threading.
I've also heard that it is possible to provide work pthread + libevent, but personally I did not do.
P.S But the use of architecture ZMQ, you get a distributed architecture, to the same scalable!