Server-side javascript

how to start ?

Confoo 2011 remix NantesJS

– Quentin ADAM @waxzce

$: w

hoam

i

Quentin ADAM

@waxzce on

twitter or github

CEO at Clever

Cloud

JavascriptWhere ? When ? Why ?

What

are

we d

oin

g

wit

h Java

scri

pt

today

? Application server

Database

Browser

RIA

His

tory

At the begining, Brendan Eich, created

Live Script (1995) at Netscape for server

usage. It is the Netscape Server procuct.

The Javascript name is

a maketing change by

Sun and Netscape.

The p

olyg

lotte

situatio

nClient

Javascript• Controller

HTML• Model

CSS• View

Server

Php

Java

Perl

Ruby

Scala

Groovy

.net

Brainf*ck

….

About polyglots

and languages

Share

som

e co

de

betw

een clie

nt a

nd

serve

r Unity of tools and

environment

Agile

Have the same

Model

No «  translations »

of objects

Some strengths for

modern and social apps

Event driven

NoSQL & Json

Use some data with unknow

format

One la

nguage,

seve

ral e

ngin

es

Rem

inds

me o

f so

meth

ing …

A s

tandard

(or

not)

&

Many

imple

menta

tions

(or

not)

Engine =

Tools compiling to bytecode + conversion

to binary instructions=

Javascript virtual machine

A s

tandard

(or

not)

&

Many

imple

menta

tions

(or

not)

{trace, spider, jäger…}Monkey

V8 M$ apple nitro Rhino Narcissus (zaphod)

dynJS & Nashorn

engin

e JS

≠ B

row

ser

Engine Browser

…

Rendering

DOM

API

JS -> binary

Define standard utils & lang

No D

OM

No jquery

No mootools

No dojo…

Except server

versions

A w

eb s

erv

er

HTTPRequest• Client

HTTPResponse• Server

RESTful

One of the biggest changes of ssjs :

event driven web response, async

0_0Don’t panic, some schema next slide

wit

hout

New HTTP

request is here

Routing work

Proccess the

response blocking thread

Send the HTTP

response

Wit

h

New HTTP

request is here

Work begins : event fired

Request marked

for waiting

Event listener handles

the request

Response contructio

n

Event «  it’s

done » fired

Send the

HTTP respons

e

What

do w

e

need ?

VM javascrip

t

Useful API

http request handler

Server side

ready

Some toolsNames

Aja

x Push

Engin

e

Designed for real time

web

Stable and strong project

Mootools framework

Mysql support

http://www.ape-project.org/

How

to ?

Mongo D

B

Document oriented

database

Store data as Bson

Lots of platforms

supported

Map re

duce

A new way for geting data

working on a lot of noSQL DB

Node.js : T

he

Sta

r

How

to ?

Entry point file

fram

ew

orks

node

Sinatra like : express

Rails like : Geddy

!! -> tools are not ready

Ruby & node.js

Com

monJS

Some specs

for all this

f*cking mess

require()

http://www.commonjs.org/

How to begin ?And be happy with new tools

Cre

ate

a g

ithub

acc

ount All ssJs projects

are on github Frameworks, mods too Examples You need it anyway

Have

a r

eal O

S

You need a real command

line interface You need compilation tools

You need it anyway UNIX

Tips : use ZSH with git

Test

node.js

wit

h

cloud9

Online IDE for node.js Nothing to install Works with github

Make

an o

pen

table

for

YQ

L SQL like language for

web APIs Works with ssjs Rhino

backend You only need a server

storing your table

Pla

y w

ith m

ongoD

B

or

couch

DB

Easy to install Useful Ssjs platform integration

Inst

all

APE

test

it

Incl

ude R

hin

o in

yo

ur

java

pro

ject

s Included in the JDK Useful for scripting Useful to work on

unsafe data Add an event layer with Atmoshpere or Akka

Wri

te s

om

e

kick

ass

apps

The ch

ecklist

What do I need ?

Can I split the

application ?

What about my

sysadmin skills ?

Is the app critical ?

Think about your problems with

these solutions

Thx