Quick Summary:

Node JS is the second most preferred and popular technology for web development. If you are wondering what practices you should follow to boost the performance of your Node.js app, then you have landed on the right page. This blog post contains all the top Node Js best practices that you should consider in 2022.


Node Js is a key player, and it has played a significant role in the popularity and extensive adoption of JavaScript. The acceptance of Node Js can be attributed to the efficiency and speed it provides to the development environment. Node Js makes it easy enough to get started, but moving forward to the core functionalities of your application, knowing how to structure your code and how to deal with errors gets difficult.

How you fix the issues that completely depends on the Node js best practices you follow. According to toW3Tech statistics, Node Js stands at the top compared to other popular web servers such as Apache, Nginx, Cloudflare, and more, based on its popularity and traffic.

Node.js Market Position

Top Node Js Best Practices to Build Node Js Application In 2022

As you have chosen this highly used, amazing wholesome library cum web-server Nodejs for your project development, follow these Node Js back-end best practices to attain the maximum benefits.

1. Start Your Project With Package.json

Stop writing bash scripts. NPM scripts make it a lot easier to organize code. NPM init command will create a support framework called package.json. We all are aware of NPM and its procedure of installing dependencies, but it’s more than that. Node Js package manager is a part of all the deployment systems for Node Js.

Node Js package manager

The package.json allows you to create a lot of metadata to make it easier for others working on the same project by offering them the same setup. This secure and reliable package management provides an opportunity for the Node ecosystem to grow exceptionally well.

2. Make Use of A Style Guide

If you are wondering how to be a productive developer? The answer is to use a style guide. Most of us invest our valuable time in reformatting the braces, changing the spaces to tabs, and trying to make sense of the code that we have never worked on earlier.

A style guide is an ideal way to follow to understand the blunder. When a code is written in a consistent style, it reduces the cognitive overhead of spaces and tabs.

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3. Use Environment Variables

We would like to advise you not to mess up your project with environment-specific configuration files. Instead, leverage the benefits of environment variables. Use environment variables from the very early stage of a project to ensure no outflow of sensitive information.

Use the Below commands to set default values via npmrc file:

set default values via npmrc file

The procedure advised in Node Js is to add the values from process.env in your code.

4. Make Yourself Familiar With Node Best Practices

It’s a good idea to ensure that you have learned the best practices of JS before implementing your Node Js strategy. If you are running out of time for full immersion or need to review JavaScript, learn some benchmarks like scope, data types, asynchronous programming, callbacks, and function and objects in JavaScript.

5. Handle Errors

Fulfilling expectations is essential for any application, and the ideal way to deal with mistakes is to use asynchronous structures. For example, promises offer a .catch handler to treat all errors appropriately.

6. Go Asynchronous

The nature and design of Node Js are single-thread, which means lots of synchronous can lock the application. Synchronous functions in a way that makes your application logic easy to understand. In comparison, asynchronous structures like promises keep your code free from blockages.

If you are avoiding the synchronous methods in your code, it is still possible to use it at a later stage with the help of an external library. The ideal way to use asynchronous is in critical performance sections.

7. Make Sure That Your Application Automatically Restarts

You are following the best practices to deal with errors. However, suppose the errors are still bringing your application down. In that case, this is where it’s ideal to use process manager to ensure the application recovers elegantly from runtime errors and restart your application as soon as the server is live again.

8. Require All Your Dependencies Upfront

It is advisable to load all your dependencies and organize them upfront. So from the very beginning, you can easily encounter if there is any problem, not after a day or two when your application has gone live in production.

9. Keep Your Code Clean And Light

Some questions are worth asking in the development stage to speed up things.

  • Why am I using this framework?
  • So I need this module?
  • Is it possible to attempt more simply?

To enhance application performance by concatenating and minifying multiple JS files into one. If your application has 5 JS files, the browser will make five separate files to fetch them. Avoid the block and wait time.

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10. Make Use of Gzip Compression

Nowadays, most clients and servers support gzip. The server itself compresses the response time when a gzip compatible browser requests a resource is, reducing latency and time lag. Gzip can improve your application’s performance when you make requests to remote servers and respond to clients.

11. Git The Substantial Bits

Every application is composed of generated files and essential files. It is advisable to avoid tracking anything formed using source code like Git, as it leads to excessive noise in your Git history when you track generated files.

12. Employ Client-Side Rendering

Due to Model-View-Controller frameworks like AngularJS and BackboneJS, have become a lot easier to create dynamic page applications. Using client-side rendering in Node Js will radically save bandwidth and reduce latency.

13. App Monitoring

How does it sound to get notified when something goes wrong with your application? You don’t want to get aware from social media feed or thousands of angry users that the application has not been correctly functioning for a few hours now. So occupying something to alert at the time of critical issues is essential.

14. Stop SQL Injections

The risk of database manipulation increases whenever JS strings are frequently used. Built-in parameters for queries given by object-relational mapping should be used to stop SQL injections.

Stop SQL Injections

15. Validate Your Code

Testing is an obvious point, and it will save you on many occasions. In-between the development, it happens when the first few production issues occur. You wish you could have done a few tests in the first place. So, start developing the habit of testing and experience a smooth and bug-free application performance.

Wrap Up

Node Js has evolved from merely a JavaScript library to an independent and full-stack programming language. Node Js is a successful runtime environment. It is extensively used as a back-end and for building RESTful APIs. However, implementing Node js best practices in your existing applications is important for optimal performance.

Lately, big names like Twitter, Walmart, Uber, and more have used Node Js for better performance and results. If you wish to be on the top list of such mammoth businesses, hire NodeJs developer from us and play your last card as an entrepreneur. Success is sure to come your way.

Frequently Asked Questions (FAQs)

Always prefer to use a package.json to improve the performance of your Node JS application. Moreover, go Asynchronous and try to use lightweight code for optimal performance.

NodeJs is mainly used for traditional web applications, real-time applications, network applications, and back-end API because of its single-threaded behavior.

To keep your web application safe and secure from any attacks, you should always follow all the open web security project practices ( usage of Lint plugin, stop SQL injections )to avoid any NodeJS application vulnerabilities.

Promise is mainly used in Nodejs as a value placeholder that can be used in the future whenever an error occurs, or any asynchronous task is completed.

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