How to share data between 3 running processes in Node.js?

Question

Node.js

Created a cluster and divided into 3 processes.
1 - main
2 and 3 (the so-called bots that must exchange information with the main process).
Could you tell me how to implement the exchange of information in real time?

Answer 1

https://github.com/RIAEvangelist/node-ipc
https://github.com/sidorares/node-dbus

Answer 2

There are plenty of options and it is not necessary to use third-party modules, you can work with sockets (this is how the node-ipc, node-dbus and many other modules designed for these purposes work) through the built-in "net" module.
https://nodejs.org/api/net.html
Or, alternatively, launch child processes from the main process and communicate with them like this.
https://nodejs.org/api/child_process.html (child_process.fork())

const bot1= require('child_process').fork('./bot1.js');
bot1.send({param: value});
bot1.on('message', function (message) {
//...
});

In general, there are plenty of options, dnode , messenger.js , etc.