Dmitry-satellite-stream NPM

Dmitry Satellite Stream

A Node Module that creates a readable stream to track the location of satellites... currently limited to the ISS, but that is still pretty cool.

Caveat

I decided to use some of the ES6 syntax that I am learning in my own time on this project as well; the upshot is that this module wants Node v4 or better. NPM will give you a friendly reminder if you npm install this with a lower version of Node.

Implementation

To download:

$ npm install dmitry-satellite-stream

To use in a project:

var IssStream = require('dmitry-satellite-stream');
// Or
import IssStream from 'dmitry-satellite-stream';

...

// To instantiate
var mySatelliteStream = new IssStream('25544', 1000);

// To receive data, set a listener or pipe to a writeable stream 
// as you would for any Readable stream.
mySatelliteStream.on('data', (dat)=>{
  console.log(typeof dat); // 'object'
});

var anyWriteStream = fs.createWriteStream('foo.txt');

mySatelliteStream.pipe(anyWriteStream);

API

constructor(\<satellite ID>, \<interval>, [options])

/** @example */
const IssStream = require('dmitry-sateillite-stream');

var myIssStream = new IssStream('25544', 1000, { calculateChange: true });

parameters

parameter	type	description
satellite ID	String	The NORAD catalog id of the satellite you want to stream data for. Default is "25544", the International Space Station.
interval	Number	The time in milliseconds to wait to get new data from the service. Minimum and default are 1000.
options (optional)	Object	A map of flags that can alter the data the stream provides

options

Currently, only one option is supported.

option name	type	description
`calculateChange`	Boolean	If true, the stream data will also contain the change per second in latitude and longitude of the satellite's position.

options can be set after instantiation using the method setOptions;

/** @example */
const IssStream = require('dmitry-satellite-stream');

var myIssStream = new IssStream('25544', 1000);

myIssStream.setOptions({calculateChange: true});