constellation-nodejs

Constellation hub access from a Nodejs context

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.

CHANGELOG : New version 2.0.0

• 2.0.0 now manage virtual entities (Sentinel and packages).
• Now you can push state object and emulate Sentinel from a Javascript Context.
• You can use the old initialization style 1.2.x with this 2.0.0

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. Configuration file isn't necessary. You can instanciate the Hub from parameters.

{/** * Constellation Configuration **/"constellation": {//// Constellation url"url" : "",//// Constellation Hub Access key"accessKey" : "",//// Your application name"applicationName" : "Test Node JS",///// Sdk Version"sdkVersion" : "1.8.2"}}

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

varConstellationHub=require('constellation-nodejs');//// With config filevarc=newConstellationHub();//// Without configuration file varc=newConstellationHub(rootUrl,token,"AmbientSensor","1.8.2");//// AmbientSensor represents the name of the application (package)//// Create a Controller Hubc.Controller().then((ctx)=>{ctx.on('connected',()=>{console.log("CONNECTED");//ctx.hub.server.writelog("SentinelPI", "{ 'test' : 'ok' } "); });returnctx.connect();});//// Create a Consumer Hubc.Consumer().then((ctx)=>{ctx.on('connected',()=>{console.log("CONNECTED");//// subscribectx.hub.client.registerStateObjectLink("R2D2","Vera","Flood Sensor (temperature)","*",function(so){console.log(so.Value.Temperature);});});returnctx.connect();});//// Create a Sentinel Hubc.Sentinel("Corulag").then((ctx)=>{ctx.on('connected',()=>{console.log("CONNECTED");ctx.hub.server.writelog("SentinelPI","{ 'test' : 'ok' } ");});returnctx.connect();});

Contributions

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