constellation-nodejs

Constellation hub access from a Nodejs context

Important

This repo is no longer maintained. It's now an official Constellation NodeJS Package accessible from official repository : https://github.com/myconstellation/constellation-nodejs or NPM.

Introduction

[Constellation] is a platform to orchestrate and interconnect your programs and devices. With constellation, you can easily manage all of your devices / sensors / switch and more, interconnect its and create intelligence between them. You can read more on [Constellation] here : http://www.myconstellation.io/

This package was created, at the beginning on my needs to access Constellation Hub from my NodeJS home context. The lack of reverse engineering on the Signal R javascript library is backed up with a DOM parallel context created with [JsDOM].

Any performances problem are noticed when I perftest it.

Don't hesitate to ask for an add, or just contribute.

Quick start

Install in your app directory

$ npm install constellation-nodejs

Create configuration file in config directory from the sample attached

Create a default.json file in /config directory.

{/** * Constellation Configuration **/"constellation": {//// Constellation url"url" : "",//// Constellation Hub Access key"accessKey" : "",//// Your application name"applicationName" : "Test Node JS",///// Sdk Version"sdkVersion" : "1.8.1"}}

Config file is automaticaly checked before any initialization, if you don't provide parameters to init() method. The config process is managed by the fantastic library [node-config]. You can manage your multiples environments with it.

Access to the Constellation Hub context

varconstellation=require('constellation-nodejs');//// Init with config file and wait until initialization is completedconstellation.init().then(function(hub){//// Init OKconsole.log("Init OK.");returnhub;}).then((hub)=>{//// connecthub.on('connected',()=>{console.log("Connected to constellation hub.");})returnhub.connect();}).then((hub)=>{//// subscribehub.client.registerStateObjectLink("R2D2","Vera","Flood Sensor (temperature)","*",function(so){console.log(so.Value.Temperature);});});

** You can also configure the context through init parameters (no config file needed).

this.init=function(url,accessKey,applicationName,sdkVersion)

Contributions

Now it's on https://github.com/myconstellation/constellation-nodejs