Discover Why Enterprises are Switching to Node.js

What is Node.js

The Node.js Model of Working

How Node.js Works

Why Node.js

How Other Programming Languages Work

Who is Using Node.js

Case Study

Where Node.js Should be Used

About Softweb Solutions

Table of Contents

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Node.js is a server side JavaScript platform and is used for building fast, scalable network applications. It was created in 2009 by Ryan Dahl and is currently sponsored by Joyent.

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The strength of Node.js lies in the fact that it has been written in JavaScript; the programming language used in web browsers which allows client-side scripts to interact with the user, control the browser and change the content that is displayed to the user.

Node.js uses this capability of JavaScript for server-side network programming and is being used in the creation of desktop and mobile applications.

It runs on JavaScript and uses the V8 engine developed by Google for use in its Chrome browser. The "engine" is a process which interprets and executes JavaScript, one of the most commonly used technologies in web browsers.

What is Node.js

Node.js - the power and familiarity of

JavaScript used for server side

programming

The event-driven, non-blocking I/O model of Node.js makes it lightweight and efficient, and perfect for creating data-intensive real-time applications that run across distributed devices.

How Node.js Works 4

This method of working makes it ideal for websites which serve content that does not require a lot of CPU resources. Node.js based websites and applications can handle a lot of traffic simultaneously very well, which is its core strength.

The way Node.js works can also be understood by the restaurant analogy.

Synchronously Run Restaurant (how other programming languages work)

Step 1 - There are four tables in the restaurant and just one waiter. When all the diners are seated, the waiter goes to the first table to take the order.

Step 2 -

Step 4 -

The waiter passes the order to the kitchen and waits while the order is prepared. He does not take orders from other diners during this time.

The waiter finally moves on to the second table. He will repeat the same process that he did with table one i.e. ignore other tables while he is working on table two.

Step 3 - The waiter serves the order to the first table and only then does he move on to the other tables.

Obviously, this kind of service would take up a lot of time and is not a very efficient model of running things.

Asynchronously Run Restaurant (the Node.js model of working)

Step 1 - The waiter comes to the first table and takes the order. He quickly passes the order to the kitchen.

Step 2 -

Step 4 -

The waiter moves on to take the order from the second table while the first table's order is being prepared.

By the time the waiter has moved to the fourth table to take their order, the other three tables are enjoying their meals.

Step 3 - Once the first table's order is ready, the waiter serves it to the diners and continues to take orders from the third table.

This model is obviously much more efficient in terms of resource use for the restaurant and also in delivering food (content) to the diners.

Node.js allows companies to reduce the number of servers while running a high-traffic site or application while achieving increased speed in content delivery.

Node is event-driven programming which means a lot can be done out of fewer

servers

How Other Programming Languages Work5

The Node.js Model of Working6

In 1994, there were around 25 million Internet users worldwide. Today there are almost 3 billion Internet users. Most of the programming languages were not built to handle such huge amounts of traffic.

Node.js has JavaScript as its base, which is a full-fledged programming language in its own right. Programmers are now realizing the benefits of using JavaScript to create and run applications in a way that reduces the resource requirements of the organization and also speeds up delivery of the data.

In this regard, Node.js is not just another temporary trend in the programming community but represents a new way of thinking about how software systems should be built and operated.

The official package manager of Node.js modules, npmjs.org, has over 83,000 modules available as of now. This means that the programmers can easily and quickly build applications using code that is "off-the-shelf", instead of re-inventing the wheel.

Applications created with Node.js are capable of handling a high number of simultaneous connections and can save enterprises’ operating costs on infrastructure.

7 Why Node.js

Node makes a much

smaller footprint on your web server. It allocates

web server resources on an as-needed basis, not

pre-allocating a large chunk of resources

for eachuser.

In 2013, Node.js was the 2nd most watched project on GitHub, the world's largest code sharing and publishing service overtaking longtime developer favorites JQuery and Ruby on Rails.

8 Who is Using Node.js

The major adopters of Node.js are –

One of the earliest and biggest adopters of the technology, it made waves in the tech community for ditching Ruby on Rails for Node.js in 2011. Today, Node.js powers its entire mobile software stack. Because of this the company was able to reduce its servers from 30 to just 3! The system also saw improved speeds by up to 20 times the previous performance.

The retail giant's embrace of Node.js was what brought over many other businesses to the platform. The company decided to implement Node.js to handle all its mobile traffic on Black Friday 2013 – the busiest shopping day of the year. The website was able to successfully handle over 200 million users online.

The second major company to switch from Ruby on Rails to Node.js. The company now uses Node.js for its back-end services and has reported improved page load times, around 50% faster than before. Their developers are also able to create new features faster.

The company has created the KrakenJS framework, which is now used in the development of all its new web applications.

LinkedIn

GroupOn

Walmart

PayPal

The publisher of Wall Street Journal, DJX, Dow Jones Newswires and other industry leading publications has made the switch to Node.js for its web and streaming applications.

The company is one of the core contributors to Node.js for Windows and also uses Node.js internally. Microsoft also provides cloud hosting for Node.js applications in Windows Azure. Yammer, its collaboration tool for enterprises also uses Node.js.

Node.js powers the company's development of a universal, global UI framework for the entire GE group of companies.

Microsoft

GeneralElectric

Dow Jones&

Company

9 Where Node.js Should be Used

Chat

Stock Trading Software

System Monitoring Applications

Real-time Monitoring Tools

Data Streaming

Node.js is the ideal platform for chat systems because of their need for high traffic, data-intensive but low processing power application requirements.

Node.js has also been used to create a real-time web solution for brokers who trade stocks daily and need to track stock prices in real-time. A Node.js-based application can be created to also perform calculations, graphs and analysis. Mobile based apps using Node.js can give day traders the ability to work from anywhere.

Node.js has the ability to be used to create a web-based dashboard for monitoring applications being used on the enterprise's Intranet and on the cloud.

Node.js can be used for creating tools that track website visitors and their interactions in real-time. This information can be utilized for creating targeted interactions with your visitors such as customized offers.

The way Node.js treats HTTP requests and responses can be used to enhance the performance of real-time audio and video encoding and creating proxies between different data sources.

The JavaScript ecosystem is perfect for real time applications such as games and chat

Server-side Web Applications

Node.js is a good choice to build web applications that run server-side only if the application is not going to be a CPU intensive application. Node.js along with MongoDB as the database choice can work well for such requirements. But if your application is going to be CPU intensive and has a relational database such as MySQL, MS SQL then Node.js is not the ideal choice.

10 Case Study

Real-time Stock Trading and Monitoring System

Challenges

Solution

Benefits

Our client, a financial consulting organization, wanted to give its customers the ability to get real-time notifications regarding stock prices. The subscribers would be getting updates on their desktops so that they would be able to make quick decisions with respect to which stocks to trade and which ones to hold on to.

We were required to deliver advanced technology solutions that ensure effectual management of large multi-structured data and a range of business intelligence and analytic applications to boost tactical, operational, and strategic decision making across the organization.

Our developers used Node.js as the server side technology to enable the site to deliver quick results to the users' desktops. RabbitMQ, the open source message broker software, was also used to deliver the data to the end users. The database technology was MongoDB. The real-time data provided to the client's customers means that now they are able to keep track of their favorite stocks around the clock.

Client subscribers can now aggregate and analyze both data-in-motion and data-at-rest.

The client needed a solution that accelerates the decision making process and also carries out Big Data analytics. This meant that our developers had to build an infrastructure that provides the ticker information and system behavioral trading signals after monitoring the real-time data and simultaneously sifts through years of historical ticks.

Our solution enables significant time saving and improved business decision features.

The client has seen increased customer satisfaction, higher retention and lower customer churn.

Softweb Solutions is a leading Software Development Company that serves clients worldwide of all sizes. We have a strong performance record in offering quality software development services demonstrated by our partnerships with leading software developers and our Microsoft Certified partnership.

We provide cutting edge mobile app development solutions for all the major platforms such as Apple iOS, Android OS, Blackberry and Windows Phone. We help companies deal with constantly evolving business needs by incorporating all our strengths in our solutions.

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11 About Softweb Solutions