This document provides an introduction to Nodejs, NoSQL technologies like MongoDB, and how to build applications using these technologies. It discusses key aspects of Nodejs like its event-driven architecture and how it uses JavaScript. It then covers setting up and running basic CRUD operations in MongoDB. Finally, it demonstrates how to build sample applications integrating Nodejs and MongoDB.

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