ipcevt

IPCEVT - An IPC event system over socket

This module is designed to provide simple event driven ipc system over native nodejs socket module.

How to install ?

Run the following command to install the module.

npm install ipcevt

Note that this library is written using es6 modules. Please remember to use following nodejs option to use the module

node --experimental-modules [your boot script path]

How to use ?

Server

The ipcevt server is designed as a simple broadcasting server that only receive connection and broadcast events among the clients.

Example

import crypto from "crypto";
import {IPCEvtServer} from "ipcevt";


(new IPCEvtServer())
.on( 'connected', (socket)=>{
	// emit when socket is connected to the server!
	// Note that the socket object will be persistent in other events too!
	socket.id = crypto.randomBytes(20).toString('hex');
	console.log( `${socket.id} is connected!` );
})
.on( 'disconnected', (socket)=>{
	// emit when socket is disconnected from the server!
	console.log( `${socket.id} is disconnected!` );
})
.on( 'netevt', (socket, event, evt_args)=>{
	// evt_args are raw buffers, you can manipulate if you want!
	console.log( `Receiving ${event} from ${socket.id} (contains ${evt_args.length} arguments)` );
})
.listen( 12334, 'localhost' );

Client

The ipcevt client is designed to behave like normal event emitters.

Example

import {IPCEvtClient} from "ipcevt";

const Client = new IPCEvtClient();

// Register the central serializer to serialize each event argument passed into emit function
Client._serializer = (input)=>{
    return Buffer.from(JSON.stringify(input), 'utf8');
};

// Register the central deserializer to automatically deserialize evey event arguments
Client._deserializer = (input)=>{
    return JSON.parse(input.toString('utf8'));
};


Client
.on( 'connected', function() {
	console.log( "Client has connected to the server!" );
    
    // Note that the input must be a Buffer or an error will be thrown
    // You can register the _serializer is to preprocess each argument!
	Client.emit( 'greeting', id, 'Hi! There!!!', {a:1, b:2, c:"123", d:Date.now()} );
})
.on( 'disconnected', function() {
	console.log( "Client has disconnected from the server!" );
})
.on( 'greeting', function(...args){
    // The arguments will be Buffer if the _deserializer is not registered!
	console.log(`Receiving [test-event]: `, ...args);
})
.connect( 12334, 'localhost' );