The document discusses Node.js, including what it is, its benefits, use cases, and readiness for enterprise use. Node.js is an event-driven, non-blocking I/O model that is well-suited for building scalable web applications with real-time features but not CPU-intensive batch processes. It promotes fast development with smaller codebases and is widely adopted by enterprises. The document also covers Node.js application architecture, database support, development tools, deployment practices, and strategies for adoption.

1. Agenda
• What is Node JS?
• Why Node JS?
• Is it ready for enterprise?

2. Node JS
• Light weight event driven non – blocking IO model
• Will be helpful for building highly scalable web sites providing
real time data
• Not for CPU intensive processes. For example for batch
processing Node JS may not be the right solution

3. Why Node JS
• Node JS makes it easy to develop web applications.
• Reduces the development effort and cost considerably.
• Compare a sample shopping cart application using Node.js vs Java,
Node js application is at least 10 times smaller in size in terms of lines
of code.*
• Node js is also really fast.
• Maintaining a smaller application is easy and java script is very easy to
learn.

4. Node JS Application Architecture
Model
JSON/XML/J
ava Script
Objects
View
Html/CSS
Controller
Angular JS
scripts
User
Interactions
Express
Web Server
Server side
scripts
Other
services
MongoDB
Files
HTTP

5. Node JS Use cases
• Exposing API’s for your organization
• Real time trading app showing real time prices

6. Ready for Enterprise?
• Security
• Supports securing applications through https.
• Few Java script functions which has vulnerabilities but by avoiding them, highly secure
Node JS applications can be created.
• Scalability
• Node applications can be scaled by deploying them in multiple servers and allowing the
connections through load balancer.
• Node JS provides Cluseter API to use multiple cores of the server.

7. Database support
• In the web application, the data has to be stored and almost
all the databases are supported by Node js
• Mongo DB
• My SQL
• Oracle

8. Development support
• Debugging
• JSHint
• Unit testing
• Node JS has in built assert module for unit testing
• Mocha – light weight framework to test Node JS apps.
• Functional testing
• Tobi
• Soda

9. Production deployment
• Node JS acts as a server as well. So no need for a costly application server to
deploy your web application.
• Node modules like Forever and Uptime keeps the Node JS applications up and
running all the time even after server restarts and crashes.
• Static files can be served from different http server to improve the performance.
Nginx is open source server which can be used

10. Adopting Node JS
• Enterprises should start trying Node JS in not so critical applications first to start off
• Based on the learnings and results of these applications, decide whether to go
ahead with Node JS
• Already lot of big names are using Node js for enterprise like PayPal, Walmart etc.

11. Demo
• Shopping cart application