1. Hands-on Nodejs
Introduction to paradigm shift.
Borja A. Espejo García

2. Key points
● Introduction to Nodejs
● Nodejs Lab
● Introduction to NoSQL technologies
● Nodejs + MongoDB Lab
● Introduction to Twitter Bootstrap
● Nodejs + GUI using Twitter Bootstrap & Jade

3. Introduction to Nodejs (I)
● Framework
● Server-side software (client too)
● Programs are written in Javascript
● Scalability
● Efficenty
● Community

4. Introduction to Nodejs (II)
● Events are a key point
● Javascript V8 → Google Chrome
● Less footprint in memory
● Linkedin, Microsoft...
● http://nodeknockout.com (Hackaton)
● Frameworks based on Nodejs .. ¿Platform?
– Meteor JS
– Grunt
– Yeoman
– ....

5. NodejsLab
● HelloWorld!!
● Let's build a client – server application....
….............in only 2 minutes, why more?
(Sources and steps to build the application are
in etherpad).

6. NoSQL technologies (I)
● Born because of new necesities. (Big Data)
● Relational databases are not a good solution
in many cases.
● Efficency.
● Twitter, Facebook use it ….and you?
● Different implementations with a common
basis.

7. NoSQL technologies (II)
● Document strore
– MongoDB, CouchDB...
● Graph
– Neo4j....
● Key-value store
– Voldemort, Riak,..
● Big Table
– Cassandra, Hadoop...

8. MongoDB
● Document-oriented storage. (JSON)
– Document VS Row
– Collection VS Table
● Replication & High Avaliability
● SubCollections
● Querying
● Map/Reduce
● Dynamic schemas

9. CRUD Application
● CREATE
- db.collection.insert( <document> )
● READ
– db.collection.find( <query>, <projection> )
● UPDATE
– db.collection.update( <query>, <update>, <options> )
● DELETE
– db.collection.remove( <query>, <justOne> )

10. Nodejs + MongoDB Lab
● Let's build a Music Service....in only 5 minutes!!
● Rest design is a good choice!
● The persistance layer is gonna be managed with
MongoDB and Mongoose.
● We are gonna use Internet Explorer...just joking!
(Sources are steps to build the application are
on etherpad)

11. Bootstrap Twitter
● Framweork to speed up the web application building.
● Web design toolkit, css framework, grid system.
● You
– Don't know css
– know css but you don't know about design
● Jade is a template engine.
● Jade is cleaner than HTML
● Jade comes by default with express framework

12. My next hands-on
● Hadoop
● Apache Mahout

13. Let's make knowledge!
● Opinions?
● Future?
● Help you?

14. Links to Knowledge
● http://www.couchbase.com/why-nosql/nosql-d
atabase
● http://en.wikipedia.org/wiki/MapReduce
● http://nodejs.org
● http://expressjs.com
● http://www.mongodb.org
● https://npmjs.org