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Simple tcp client / server for easy json objects / data transmission supporting tls


npm install ee-net

build status

Build Status


The Server and Connection class do have almost all properties and events of the native node.js «net» API. see net API



The constructor of the server class takes the options described at tls.createServer for a tls enabled server and the options described at net.createServer for non tls mode. you may pass a port and a host option as well.

var net = require( "ee-net" );

var server = new net.Server( { port: 9999 } );

«connection» event

The connection event is called when a client has established a new connection on the server

server.on( "connection", function( connection ){
	// see the «connection» chapter below for the docs on connections
} );



The constructor of the connection class takes the options described at tls.connect for tls enabled connections and the options «port» and «host» for non tls enabled connections.

var connection = new net.Connection( { host:, port: 9999 } );

«message» event

The message event is called when a message was received and decoeded successfully

connection.on( "message", function( message ){
	log( message );
} )

send method

You may transmit messages using the «send» method

connection.send( { myJSON: "object" } );

remote / local property

The remote and local property return the remote / local ip / host configuration of the connection

log( connection.remote ); // { address:, family: "IPv4", port: 9999 }

example of a super simple echo server running on localhost

var   net 			= require( "ee-net" )
	, server 		= new net.Server().listen();

server.on( "conenction", function( connection ){
	connection.on( "message", function( msg ){
		log( msg );  // { hi: "fabian" }
		connection.send( msg );
	} );
} );

// wait until the server is online so we know its port
server.on( "listening", function(){
	var client = new Connection( { 
		port: server.address.port
	} );

	client.on( "message", function( msg ){
		log( msg ); // { hi: "fabian" }
	} );

	client.send( { hi: "fabian" } );
} );

cutom protocol implementation

You may implement custom protocol handlers, see ee-protocol-json for more information. You may pass an alternative protocol implementation to the constructors of the Server / Connection using the «protocol» property of the options object.