NODE.JSa pragmatic approach

Kostas Karolemeashttp://gr.linkedin.com/in/kostaskarolemeas

3rd GreeceJS Meetup

Kostas Karolemeas

3rd GreeceJS Meetup

Kostas Karolemeas

WHAT IS NODE.JS?

Evented I/O for v8 javascript

3rd GreeceJS Meetup

Node.js is a platform built on Chrome's JavaScript runtime for easily building fast, scalable network applications. Node.js uses an event-driven, non-blocking I/O model

that makes it lightweight and efficient, perfect for data-intensive real-time applications that run across distributed devices.

WHY NODE.JS?• Performance and Scalability

• BUT: you need to respect the asynchronous model otherwise node cannot fix late responses…

• End-to-end javascript / reusable code / no need to switch contexts• BUT: a good web developer is not by default a good server-side developer

• AND: you will not be able to write in the same way both sides (e.g. different frameworks)

• Strong, responsive and enthusiastic community

• Many hosting options (IaaS to PaaS)

• Mature development toolsKostas

Karolemeas

3rd GreeceJS Meetup

NODE.JS SERVICES

Kostas Karolemeas

3rd GreeceJS Meetup

Express(web dev. framework)

Express(web dev. framework)

URI routing (e.g. REST

API)

URI routing (e.g. REST

API)

Views (templates)Views (templates)

SessionsSessions

HamlHaml

JadeJade

EJSEJS

Connect(middleware)

Connect(middleware)

Error HandlingError

Handling

Configuration

Configuration

Logging

Logging

Cookies

Cookies

AuthAuth

Session

Stores

Session

Stores

NODE.JS APP STACK

Kostas Karolemeas

3rd GreeceJS Meetup

Express / ConnectExpress / Connect

Async.js(asynchronous call

management)

Async.js(asynchronous call

management)

Winston(multi-transport async logging)

Winston(multi-transport async logging)

Mongoose(async object modeling for MongoDB)

Mongoose(async object modeling for MongoDB)

node-mongodb-native

node-mongodb-native

DEPLOYING NODE.JS

Kostas Karolemeas

3rd GreeceJS Meetup

Redis To GoRedis To Go

BlitzBlitz

LoggingLogging

Release ManagementRelease Management

DynosDynos

FREEFREE

NODE.JS TOOLS

Kostas Karolemeas

3rd GreeceJS Meetup

•npm - package/dependency manager

•Mocha - test framework• Alternative DSL (interfaces) for describing tests

• Alternative Reporters for results

• Runs either from a shell or in a browser

•WebStorm - Javascript IDE• Integrated Node.js launcher / debugger

• Excellent javascript editor

• Very good integration with task management and version control tools

WHAT’S NEXT?

Kostas Karolemeas

3rd GreeceJS Meetup

•Give it a spin!• Install Node.JS and NPM

• Install WebStorm

• Install Git

• Create an account in Heroku and install tools

• Follow Heroku instructions to create a Node.js application

• Use heroku-buildpack-nodejs to install latest Node.js

• Install Heroku add-ons: MongoLab, Redis To Go, Logging, Release Management

THANK YOU!

Kostas Karolemeas

3rd GreeceJS Meetup