Best Practices for Node JS Project

Introduction

Node.js is becoming one of the most popular JavaScript platforms over the last couple of years. It is easy to get started in those Node.js projects because it is built on Chrome’s V8 JavaScript engine. A good beginning is half the battle. Laying out a project structure in a practical way is one of the complex parts of the development process and indeed, a delicate process.
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By making the effort to understand the inner workings of a web development framework, we open ourselves to insights about the various ways of not only the framework itself but also about popular programming algorithms and their design decisions. An integral aspect of how Node.js works under the hood, event loop-based apparatus for accomplishing asynchronous behavior. 

In this blog, we’re going to discuss the Node.js project structure and cover best practices of Nodejs that help you to organize and manage your Node.js applications. 

What are the best practices for Node.js project structure?

1. Separate business logic and API routes

Frameworks like Express.js are perfectly suitable for managing views, routes, and requests because it provides incredible features and functionalities to do so. With such support, it becomes tempting for developers to put business logic into their API routes. But it will quickly make them into monolithic blocks that reveal themselves to be unmanageable and hard to read and prone to decomposition. But make sure that the testability of your application will reduce, with consequently longer development times. 

2. Conduct unit testing

We can also implement unit testing for Node.js projects which is an incredibly essential stage in developing any applications. The entire project flow — not only the final results — depends on it since buggy code will slow down the development process and may cause other-related problems. 

A simple and easy way to test your Node.js applications is to test them by units and isolate a section of code and verify its correctness. While implementing procedural programming, a unit may be a single function or procedure which is performed by the developers who write the code. 

3. Use a style guide

When we open a newly created file from another source for the first time, we then spend the next hour reformatting the braces to be on different lines, changing the spaces to tabs, and vice versa. The challenge here is a mixture of opinionated developers and no company standard style guide. It is easy to understand the codebase if it’s all written in a consistent style and decreases the cognitive overhead of whether you should be writing with tabs or spaces. 

It is not required to have your own rules, instead, it is better to follow an existing set of guidelines. Some good examples of it are Google, Standard JS, Airbnb, and jQuery, just pick one of them and stick with it!

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