nextgen-events/sample/doc-client.js

The next generation of events handling for javascript! New: abstract away the network!

#!/usr/bin/env node
/*
	Next-Gen Events

	Copyright (c) 2015 - 2021 Cédric Ronvel

	The MIT License (MIT)

	Permission is hereby granted, free of charge, to any person obtaining a copy
	of this software and associated documentation files (the "Software"), to deal
	in the Software without restriction, including without limitation the rights
	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	copies of the Software, and to permit persons to whom the Software is
	furnished to do so, subject to the following conditions:

	The above copyright notice and this permission notice shall be included in all
	copies or substantial portions of the Software.

	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
	AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	SOFTWARE.
*/
var NGEvents = require( '../lib/NextGenEvents.js' ) ;
var WebSocket = require( 'ws' ) ;
var ws = new WebSocket( 'ws://127.0.0.1:12345' ) ;

// Create a proxy
var proxy = new NGEvents.Proxy() ;

// Once the connection is established...
ws.on( 'open' , function open() {
	
	// Add the remote service we want to access
	proxy.addRemoteService( 'heartBeatService' ) ;
	
	// Listen to the event 'heartBeat' on this service
	proxy.remoteServices.heartBeatService.on( 'heartBeat' , function( beat ) {
		console.log( '>>> Heart Beat (%d) received!' , beat ) ;
	} ) ;
} ) ;

// message received: just hook to proxy.receive()
ws.on( 'message' , function( message ) {
	proxy.receive( message ) ;
} ) ;

// Define the receive method: should call proxy.push() after decoding the raw message
proxy.receive = function receive( raw ) {
	try { proxy.push( JSON.parse( raw ) ) ; } catch ( error ) {}
} ;

// Define the send method
proxy.send = function send( message ) {
	ws.send( JSON.stringify( message ) ) ;
} ;

// Clean up after everything is done
ws.on( 'close' , function close() {
	proxy.destroy() ;
} ) ;