tcp-crypto

Provide encrypted point-to-point channel between server and client via tcp. Server stores unsended data inside special folder while client is disconnect. Client can send query and wait answer on callback.

Install with npm

npm i tcp-crypto --save

Usage

Server side

'use strict'
const Server = require('tcp-crypto').Server;
 
let server = new Server({
    "port": 3000,
    "cipher": "aes192",
    "password": "secret",
    "dir": "./outbox"	
});
 
server.on('connection', function () {
    console.log('connect');
    server.send('your-server-event', 'Hello from server');
});
server.on('disconnection', () => console.log('disconnect'));
server.on('error', (err) => console.log(err));
server.on('send', (msg) => null);
server.on('your-client-event', (data, msg_id) => console.log(data));
server.on('your-client-event-with-callback', (data, msg_id) => 
    server.send('your-client-event-with-callback', 'Hello callback again', msg_id); // send reply
);
 
// send console input
let stdin = process.openStdin();
stdin.addListener('data', (data) => server.send('your-server-event', data.toString()));

Client side

'use strict'
const Client = require('tcp-crypto').Client;
 
let client = new Client({
    "port": 3000,
    "cipher": "aes192",
    "password": "secret",
    "reconnect-delay": 10
});
 
client.on('connect', function () {
    console.log('Connect');	
    client.send('your-client-event', 'Hello from client');
    client.send('your-client-event-with-callback', 'Hello callback', (res) => console.log(res));	
});
client.on('disconnect', () => console.log('Disconnect'));	
server.on('send', (msg) => null);
client.on('error', (err) => null);
client.on('your-server-event', (data) => console.log(data));
 
// send console input
let stdin = process.openStdin();
stdin.addListener('data', (data) => client.send('your-client-event', data.toString()));