About

This is Jet for JavaScript. Jet is the hybrid of an In-Memory Database and a Realtime Push-Framework. Node and Browsers are supported (using Browserify).

Synopsis

Start a Daemon:

$ jetd.js

Provide Content:

var jet = require('node-jet');

// connect to daemon
var peer = new jet.Peer({
  url: 'ws://localhost:11123' 
});

// provide methods/factories/services/actions/etc
var greet = new jet.Method('greet');
greet.on('call', function(who) {
  console.log('Hello', who);
});

peer.add(greet);

// provide documents/realtime-status/configuration/etc
var jim = new jet.State('persons/#123', getPerson('#123'));
jim.on('set', function(changedPerson) {
  setPerson('#123', changedPerson);
  // changes are propageted automatically
});

peer.add(jim);

// provide read-only stuff
var nowState = new jet.State('time/now', new Date().getTime());

peer.add(nowState);

// change async
setInterval(function() {
  nowState.value(new Date().getTime());
}, 100);

Consume Content:

// fetch/query content
var youngestPersons = new jet.Fetcher()
  .path('startsWith', 'persons/')
  .sortByKey('age', 'number')
  .ascending()
  .range(1, 20)
  .on('data', function(persons) {
    console.log(persons);
  });

peer.fetch(youngestPersons);

// call methods
peer.call('greet', ['Steve']).then(function(response) {
  console.log(response);
});

// set states
peer.set('person/#123', {name: 'Jose', age: 33});

Tutorial

Read the Todo-App Tutorial (Vanilla JS client) or the React + Redux Variant for building this simple collaborative realtime app:

Install

NPM

$ npm install node-jet

Stand-Alone Daemon

The package provides a stand-alone Jet Daemon which listens on ports 11122 (trivial protocol) and 11123 (WebSockets) per default.

Start it like this (globally):

 $ jetd.js
 

Or - if installed locally:

 $ node_modules/.bin/jetd.js
 

Integrated Daemon

If you want the Jet Daemon to listen for WebSockets on the same port as your existing (node.js) HTTP server, use the daemon.listen({server:httpServer}) method like this:

var httpServer = http.createServer(function(req, res) {
  // serve your stuff
});
httpServer.listen(80);

var daemon = new jet.Daemon();
daemon.listen({
  server: httpServer
});

Radar

Open Radar on jetbus.io, which allows you to see/observe Your Jet States and Methods. Your local Jet Daemon's default WebSocket address is ws://localhost:11123.

Doc

• Peer
• Daemon

For further info and documentation refer to the Jet Homepage.

Todo-App

There is also the canonical ToDo-App available:

• Client + Server Tutorial
• Client code
• Client code (using angular-jet)