1. NodeJS
/henricavalcante
github facebook twitter
Julho 2015

2. What is NodeJS?
NodeJS is a runtime environment for running JavaScript application
outside the browser, so, JavaScript on your back-end.

3. JavaScript everywhere
Multiprotocol
Lightweight
Multiplatform
Non-blocking
Real Time Programming
Large and Active Community
Used by giants
Why the hell would I use Node.js?
Benefits

4. Under the 'v8' hood
How does it works?
request
request
request
request
request
request
request
thread
thread
thread
Tradicional
request
request
request
request
request
request
request
thread
NodeJS

5. Chat
Real-time Application
Streaming
Game Server
Rest api
IoT
High level concurrence
When should I use Node.js?
Silver Bullet? NO

6. Just a baby
Fev2009
Nov2014
io.js
born
Today
Mar2013node@0.11.x

7. Who uses?
source: https://github.com/joyent/node/wiki/Projects%2C-Applications%2C-and-Companies-Using-Node
288+

8. * 3rd most popular project on Github.
* Over 2 million downloads per month.
* 500+ meetups and conferences yearly.
* 100k Linkedin members with node skills.
* 160k modules on NPM.
How big is it?
Community
source: https://strongloop.com/wp-content/uploads/2015/02/final-node-infographic-3-18-15v1.pdf

9. NPM
• browserify
• pm2
• grunt
• karma
• express
• bower
• cordova
• gulp
• ionic
• forever
• less
• socket.io
• sass
• jade
Node Package Manager
...
var express = require('express');
var app = express();
app.get('/', function (req, res) {
res.send('Hello World!');
});
var server = app.listen(3000, function () {
var host = server.address().address;
var port = server.address().port;
console.log('Ex app listening at http://%s:%s', host, port);
});
var io = require('socket.io')(80);
var cfg = require('./config.json');
var tw = require('node-tweet-stream')(cfg);
tw.track('socket.io');
tw.track('javascript');
tw.on('tweet', function(tweet){
io.emit('tweet', tweet);
});
npm install

10. LiveCode