Node.js from Beginning MunichJS

Node.js
from the beginning
MunichJS, January 2016, Munich
16-01-15 Node.js – from the Beginning

 Robert Prediger
 20 years: Progress
 15 years: Web development
 5 years: Node.js
 robert.prediger@web4biz.de
16-01-15
Introduction
Node.js – from the Beginning

Installation

npm is a piece of technology, but more
importantly, it is a community.
npm makes it easy for JavaScript developers to
share and reuse code, and it makes it easy to
update the code that you're sharing.
https://www.npmjs.com/
npm
16-01-15

npm
Node.js - What?6-Nov-15

npm
Node.js – from the Beginning16-01-15
Source: http://www.modulecounts.com/

Socket.IO enables real-time bidirectional
event-based communication.
It works on every platform, browser or device,
focusing equally on reliability and speed.
USED BY EVERYONE
From Microsoft Office, Yammer, Zendesk, Trello...
to hackathon winners and little startups.
http://socket.io/
socket.io
16-01-15

var express = require('express'),
app = express(),
server = require('http').createServer( app ).listen( config.port ),
io = require('socket.io').listen( server ),
numConn = 0;
...
socket.io
16-01-15

..
io.on( 'connection', function(socket) {
numConn += 1;
console.log( "connected", numConn );
// event for login from socket
socket.on( "login", function ( name ) {
socket.nickname = name;
});
...
socket.on( "disconnect", function() {
numConn -= 1;
console.log( "disconnect", numConn );
});
});
socket.io
16-01-15

..
// socket sends message
socket.on( "sendMessage", function( msg ) {
console.log( "send message", numConn, socket.nickname, msg );
// broadcast message to all subscribed sockets
socket.broadcast.emit( "newMessage", {
name: socket.nickname,
msg: msg
} );
});
...
socket.io
16-01-15

Demo
socket.io
16-01-15

Fast, unopinionated, minimalist
web framework for Node.js
Minimal and flexible Node.js web application framework
that provides a robust set of features for web and mobile
applications.
http://expressjs.com/
express
16-01-15

express
favicon
Static-Files
Log
Process Request
... (other middleware modules)

app = express();
app.get( "/rest/:table", auth, function( req, res ) {
res.send( "Request: " + req.params.table );
});
app.get( "/rest/:table/:id", auth, function( req, res ) {
res.send( req.params );
});
app.get( "/", function( req, res ) {
console.log( "req" );
res.send( "Hello World" );
});
app.listen( 80 );
express
16-01-15

app = express() ,
router = express.Router();
// use router with prefix
app.use( "/rest", auth, router );
router.get( "/:table", function( req, res ) {
res.send( "Request: " + req.params.table );
});
router.get( "/:table/:id", function( req, res ) {
res.send( req.params );
});
});
app.listen( 80 );
express
16-01-15

app = express();
app.use( function( req, res, next ) {
var start = new Date;
console.log( "way down", req.url );
next();
console.log( 'way back' );
console.log( 'Response-Time', new Date - start );
});
});
app.listen( 80 );
express
16-01-15

app = express();
app.use( function( req, res, next ) {
console.log( "way down", req.url );
next();
console.log( 'way back' );
console.log( 'Response-Time', new Date - start );
});
process.nextTick( function() {
});
});
app.listen( 80 );
express
16-01-15

Enterprise Node to Power the API
Economy
No matter where you are in the lifecycle of developing
APIs with Node, StrongLoop has a complete set of
command-line and graphical tools that can work together
or independently to help you succeed.
https://strongloop.com/
StrongLoop
16-01-15

Strongloop

Strongloop
Source: https://strongloop.com/node-js/arc/

The web framework of your dreams
Built for developers by a giant squid.
Sails makes it easy to build custom, enterprise-grade
Node.js apps. It is designed to emulate the familiar MVC
pattern of frameworks like Ruby on Rails, but with
support for the requirements of modern apps.
http://sailsjs.org/
SailsJS
16-01-15

SailsJS
Source: https://www.manning.com/books/sails-js-in-action

next generation web framework for
node.js
Koa is a new web framework designed by the team
behind Express, which aims to be a smaller, more
expressive, and more robust foundation for web
applications and APIs.
http://koajs.com/
Koa
16-01-15

var koa = require('koa'),
app = koa();
app.use( function *(next){
yield next;
var ms = new Date - start;
this.set('Response-Time', ms + 'ms');
});
app.use( function *(){
this.body = 'Hello World';
});
app.listen( 80 );
Koa (1.x)
16-01-15

var Koa = require('koa'),
app = new Koa(),
co = require('co');
app.use( co.wrap( function *( ctx, next){
const start = new Date;
yield next();
var ms = new Date - start;
console.log( 'Response-Time', ms );
}));
app.use( ctx => {
ctx.body = 'Hello World';
});
app.listen( 80 );
Koa (2.x)
16-01-15

The Web framework beyond your dreams
ThinkJS is the first Node.js MVC framework that
supporting use full ES6/7 features to develop Node.js
application.
https://thinkjs.org/
ThinkJS
16-01-15

ThinkJS

Disadvantages
Even though ThinkJS has many advantages, it has also a few
disadvantages too, for example:
• ThinkJS is a relatively new framework, the
community is not strong enough.
• ThinkJS is short of large scale applications.
ThinkJS
16-01-15

Build powerful back-end with no effort.
Fast. Reusable. Easy to use.
The next generation framework for Node.js
built on top of Koa.
http://strapi.io/
strapi
16-01-15

strapi

01-15 Node.js – from the Beginning
That‘s it 
Thank you very much for listening
robert.prediger@web4biz.de
Sourcecode:https://github.com/web4biz/Node.js-FromTheBeginning

Node.js from Beginning MunichJS

Recommended

Recommended

More Related Content

What's hot

What's hot (20)

Similar to Node.js from Beginning MunichJS

Similar to Node.js from Beginning MunichJS (20)

Recently uploaded

Recently uploaded (20)

Node.js from Beginning MunichJS

Editor's Notes