Node js Backend: How good is it?

1. Introduction

In today’s time, to grow your business, having a modern software application is essential. The ongoing advancements in application development technologies have confused business owners on which technology to go with. And choose the right tech stack is very important as it can give a better result for your objectives. Here, the most important factor is to select the best backend web development technology as it has the capability to handle the entire mechanism of the application.

For this, the perfect modern app development framework available in the market is Node.js. It is widely used and has been adopted by many giant companies as their backend tech stack. Companies like Twitter, Netflix, PayPal, and Uber are using Node backend technology for their applications, desktop apps and websites. And this has made Node.js rank as the 6th most popular technology in the Stack Overflow survey. Therefore, if you want to have a successful application, hiring a Node.js development company will be the best option.

To know more about Node for the backend, what is the purpose of using Node js? How does it work? What are its use cases? What are its pros and cons? and more. Let’s go through this blog.

2. Node for Backend

2.1 What is the Purpose of Node.js?

Node.js is one of the most popular frameworks available in the market. The main aim of using this backend web development framework is that it offers speed as no other framework does. Be it data processing or client-server interaction, Node.js makes it all smooth. Besides, with Node.js, the app development process can also be carried out speedily (by reducing the development time). This is why Node.js is known as a framework that offers event-driven two-way connections between the server side and the client side by enabling both parties to start the conversation and data exchange process very smoothly and speedily.

Node.js also offers a unique I/O approach that enables the professional developers to have real-time solutions to any kind of development issues. In addition to this, Node.js is a fast and lightweight framework and comes with the ability to employ JavaScript code on both the development sides, frontend and backend. This helps the developers to create efficient and cross-functional applications with flexibility and lower development expenses.

2.2 How is Node.js different from web JavaScript?

JavaScript is a popular scripting language that is used by developers for web browsers. While  Node.js is a JavaScript interpreter that comes with multiple components and libraries. JavaScript is known as a single-defining programming language that can be used in any web browser by just using the default environment of the browser. And it is a very popular language that enables developers to create web applications for any type of verification. On the other hand, Node.js is a popular JavaScript-based framework that comes with a large number of JavaScript libraries . It is known as a promising environment that can help run any kind of JavaScript-based programs and assist the developers in performing non-blocking operations like obtaining OS-specific data such as hardware details or certificates information.

Basically, Node.js is an environment that allows the developers to use JavaScript in ways other than the browser and they are shell scripting, backend services, and more.

2.3 Explain the Working of Node.js

Working of Node.js

Node.js is a very popular, flexible, and scalable backend runtime environment where JavaScript works on the server side of the web and mobile applications. This is the main reason behind JavaScript being used on both the frontend and backend sides. Besides, the Node.js backend development environment runs on the chrome v8 engine that enables the conversion of JavaScript code into machine code. This makes Node.js a lightweight, highly scalable, data-intensive, and fast framework.

This minimalist web framework also has the capability to accept requests from clients and sends responses very smoothly and efficiently. Besides, to operate I/O operations, Node.js uses the concept of threads. Here, a thread means a sequence of instructions that are performed by the server. It runs parallel on the server side while it is providing information to various clients’ incoming requests.

Besides this, Node.js has known for being the best event loop single-threaded language. This means that Node.js has the ability to handle concurrent requests with a single thread. And this is carried out without blocking it for any request. The two main concepts that Node.js works on are – Non-blocking I/O and Asynchronous.

  • Non-blocking I/o: Non-blocking I/O is a concept that means working with various requests without blocking any one of them. It basically interacts with external systems like relational databases or files. This is why Node.js is not used for CPU-intensive work as a single thread in Node.js cannot handle the tasks of a CPU.
  • I have got this answer on stackoverflow but it’s too long. What to do?
  • Asynchronous: The other concept that Node.js works on is Asynchronous. It is a concept that executes a callback function. This means that the moment a user gets a response from the server or database, a callback function will be executed. The callback function is called when a task is finished and the main reason behind it is that Node.js works on an event-driven architecture.

Here is a brief explanation of how Asynchronous works in Node JS

Asynchronous works in Node JS

3. Pros and Cons of Node

Pros and Cons of Node

3.1 Pros of Node.js

Here are some of the major benefits of using Node.js

Offers High Performance for Real-time Applications

Node.js is a popular JavaScript runtime environment that enables web applications to multitask. And this is very beneficial for the applications that are created for big firms that get multiple client requests. The reason behind Node.js offering such services is that it is a platform that follows single-threaded and event-driven architecture.

Besides, Node.js has the capability to effectively process several concurrent requests and this is carried out without blocking RAM. In addition to this, as it works on an event-loop and non-blocking I/O operations, Node.js allows synchronous  code to be executed at a rate that improves the app’s overall performance. After Google released the V8, Node.js set a new benchmark of offering quicker execution, better security patchwork, better compilers, and a good capacity to scale.

Offers Easy Scalability for Modern Applications

In today’s time where modern applications are in high demand, Node.js is a cross-platform runtime environment that offers a cluster module which is known as the best cutting-edge technology characteristics. It enables load balancing. This means that Node.js makes it simple to achieve desired results using smaller modules across several CPU cores without damaging the RAM. Besides this, it also uses a non-blocking event-loop approach that enables scalability and quick responses.

Helps in Building Cross-Functional Teams

Node.js is used by developers to create cross-platform apps as it offers full-stack development capabilities. With Node.js it is possible to create a team that is focused on having a successful development cycle. It also enables the team members to quickly respond to the issues. This work environment increases the productivity level and enables the developers to resolve issues easily. This is why it is used to create cross-functional teams in the company.

Improves App Response Time and Boosts Performance

As Node.js comes with a single-threaded event-loop paradigm, it is possible to enable the developers to have a non-blocking asynchronous architecture for app development. This means that if there are fewer resources and fewer threads, this environment enables improving the responsiveness of the program by enabling the system to handle several concurrent users.

According to a Survey conducted by, node has helped to increase the uptime of various business by 24% and has also increased the application performance by nearly 48%

how node.js has impact your business

3.2 Cons of Node.js

Here are some of the cons of Node.js –

Unstable API

One of the biggest drawbacks of Node.js is that it lacks consistency. This means that the API for the Node.js environment changes regularly and the updates that the Node.js community offers are generally incompatible with previous versions. And because of this, the programmers developing software have to make changes to the old code base to make it compatible with the new version and this is an ongoing process.

High Demand With a Few Experienced Node.js Developers

When it comes to Node.js, the available resources are fewer. This is because the tech students who pass out from universities generally prefer to choose other trending technologies to work on. Basically, the students tune into the talent pool and prefer to choose the industry’s trending demands. This makes very few techies choose Node.js as their career option which affects the market demand for Node.js developers. And the techies who are working with Node.js are generally hired by tech giants like LinkedIn, Amazon, and Facebook, which means that the demand for Node.js developers outpaces supply.

System Crashing

In Node.js-based applications, if an exception enters the event loop’s core, it can crash the entire application with no recovery state. In such cases, the developers need to make use of external systems to solve this problem. For instance, modules like ‘forever’ can be used by the developers to create callback parameters that return the error caused to the caller.

Node.js Asynchronous Programming Model Makes It Difficult to Maintain Code

Node.js works on asynchronous code. This is its nature. Though this technology has the capability to respond quickly to callbacks, the functions only run after each task in the queue. This means that if there are numerous queued tasks, the process will continue for a long time in the background and this can create a callback hell. Callback hell means that a direct impact is created on the code’s quality and performance which makes it more difficult for the developers to maintain the code.

4. Use cases

What is Node.js Used For?

Node.js is a very popular, efficient, and robust JavaScript-based framework that is used for real-time app development. It facilitates handling various client requests, reusing packages of library code, and enables sharing of them. With Node.js the developers can easily sync the client data with the web server. Besides this, some of the major use cases of Node.js are –

  • Node.js is one of the most popular backend technologies that is used for creating video conferencing applications that work only with certain hardware of VoIP.
  • With Node.js, creating collaborative drawing/editing apps is easier and beneficial as multiple people will be using this app for editing and reviewing projects at the same time.
  • eCommerce and online gaming apps offer the best results when created using Node.js.
  • Minimum Viable Products can be created using Node.js as these are the products that start-ups create to validate their marketability without investing too much money in development. So, Node.js also helps in reducing development costs.
  • Developers use Node.js for creating live chat and instant-messaging applications where instant client-server interaction is necessary.
  • Node.js offers microservice architecture which is very popular amongst enterprise-level applications.

5. Node.js Frameworks

Node.js Frameworks

Here are some of the most popular Node.js frameworks available in the market –

5.1 Express.js

Express Framework  is a lightweight framework that is minimally designed with a large set of HTTP requests. Developers use this framework when they want to create a simple and cost-effective software solution for the client. This framework is the best when it comes to developing mobile apps, APIs, and web applications. Allows to dynamically render HTML Pages based on passing arguments to templates.

5.2 NestJS

Another popular Node.js backend framework is Nest.js. It is a powerful framework that is used for constructing enterprise-level projects. This framework comes with a large number of libraries that implement technical approaches like Model-View-Presenter (MVP), Function-Point (FP), Typescript, Functional-Reactive-Programming (FRP) principles, and integrated Object-Oriented-Programming (OOP).


MEAN.JS is one of the best Node.js frameworks available in the market. It is a combination of open-source technologies that help developers in creating dynamic web applications from scratch. This framework helps the developers to create robust, secure, and maintainable production web applications with the use of technologies like Node.js, MongoDB, Angular.js, and more.

5.4 Hapi.js

Hapi.js, a Node.js framework, is open-source and stable. It is a constant Model-View-Controller MVC framework that helps in creating web apps, desktop apps, and services. This framework offers an effortless structuring of API servers, HTTP proxy applications, and websites. It comes with a robust plugin system. With this framework, the developer is able to add new features to the current applications easily, they can quickly fix bugs, and offer a proper running app in no time. Hapi.js has the capability to offer features for input/output validation, routing, and caching.

6. Comparison with other backend frameworks

Here, we will compare Node.js with other popular backend frameworks to see how distinct Node.js is.

6.1 Node.js vs Python

Python is one of the most popular programming languages that comes with a very simple syntax. It is used to create web apps and because of its easy usability, developers can learn this technology in no time which makes them create new projects in Python very easily. Besides, Python is an object-oriented language and though it is interpreted, it can be useful for consuming a large number of computing resources. It is used for areas like AI and math-heavy simulations, where Node.js lacks. But on the other hand, Node.js makes it easier for developers to create high-performing real-time applications.

6.2 Node.js vs Java

Node.js vs Java

Node.js and Java run programs within their own runtime environment. But this is the only similarity between them. Java is a popular, compiled, object-oriented programming language that comes with a C++ kind of syntax. It is used to create large apps. While on the other hand, Node.js is a lightweight framework that is based on JavaScript. So, Node.js is suited for I/O applications. Besides, Node.js comes with an event loop approach which makes it more efficient for I/O applications, but Java has a thread pool which is more powerful when it comes to handling complex operations.

7. Conclusion

As seen in this blog, Node.js is one of the best tools for creating high-performance, robust, and scalable online applications. This technology only offers the best services but also enables an increase in productivity and developer efficiency levels. It is used to create critical web development projects that are a perfect blend of performance, speed, and size. Node.js comes with features that enable developers to create eCommerce, online gaming, instant messaging, and enterprise-level apps. Basically, Node.js is the best environment for backend development. 

Itesh Sharma

Itesh Sharma is core member of Sales Department at TatvaSoft. He has got more than 6 years of experience in handling the task related to Customer Management and Project Management. Apart from his profession he also has keen interest in sharing the insight on different methodologies of software development.


  • Leave a message...

    1. Louis Nelson

      Most of the time newbie developers think that node is a backend framework and it is often used for building servers but, it is not the case Node is used for client side as well as for server side development. Prominent features of Node such as event driven, non blocking nature makes the framework a preferred choice for backend operations.

    2. Subhash Mistry

      Why should Node be used for building streaming apps like Netflix? It is because Node could help in getting the metrics about the users demographic and watch time, developers could also take advantage of diagnostic tools for finding out the errors and Node is easily available on any platform.

    3. Odin Craig

      Originally JavaScript was introduced as a frontend programming language but it was not able to provide a backend framework that could compete with other frameworks. Today there are many frameworks that have gained ground in various areas of app development like Titanium, PhoneGap, Node, and many more out of them all Node become the most feasible alternative to all those developers looking to unite their programming language.

    4. Aarav Prabhu

      The thing that makes Node different from other frameworks is that with Node there is freedom in building applications. Other frameworks like ROR come with a set of rules and instructions that are needed to be followed during the development time. Node will provide any person an opportunity to do things the way they wish to do also, Node creates applications that work on all platforms.

    5. Margaret Cooper

      Most people think that NodeJS can only be used as a backend development framework but there are many use cases of Node when it is combined with other Node Libraries like developing Multi-player games, sending the invitation e-mails instantaneously, generating a Quick response code, and many more.

    6. Atharv Sethi

      Do you know with the help of Node.js, Twitter, and NPM modules one can create an application that can automatically track, like, and re-share tweets with certain #hashtags in it isn’t it cool to automate things that’s one of the best uses of Node with Twitter.

    7. Jake Williams

      Choosing which backend technology to use can be one of the most important decisions that a technical officer or chief officer has to make. It would determine how early a product can be delivered to market, total amount of cost that would be incurred and how often the maintenance would be needed.

    8. Sumati Rama

      Node as a backend tool is best suited for real time apps whereby it can easily manage multiple requests that are made by the client. The app can respond immediately and works within a limited time framework, perfect for low latency apps.

    9. Zac Holmes

      One of the many benefits which makes Node unique is its I/O model which is single threaded whereby RAM management is done excellently compared to traditional frameworks which would require new thread for each new connection thereby taking up most of the RAM heavily and slowing the progress.

    10. Kunj

      This article provides a good overview of the benefits of using Node.js for backend development, like high performance for real-time applications, easy scalability, and improved app response time. I would recommend this blog to anyone interested in learning more about Node.js and its benefits for building scalable and high-performing web applications.

    11. Shriji

      This article provides detailed information like what is Node.js, pros and cons of it, use cases, Node.js framework and all. It is useful for both beginners and experienced developers.

    12. Stuti

      This article shows how Node.js is one of the best backend technology for developing fast, reliable, and scalable web applications. Highly recommended!

    13. Saanvi

      I absolutely agree with your opinion of Node.js as a strong backend technology. Since I started using Node.js for my backend development projects, it has completely changed the way I approach my work.