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Web development is one of the top domains in the IT sector presently, with several applications and uses in our daily lives. Web applications are used in almost every industry, providing an easy interface for the users to interact with. No wonder there are more than 200,000 web developers currently in the USA! One of the well-known web stacks that have gained prominence over other stacks is the MERN stack. Its user interface (UI) execution, open-source nature, and simplicity of switching between customer and server all contribute to this. The total performance of an application is what it aims to improve.

Therefore, selecting a MERN stack framework is crucial for a business where users interact on several levels. MERN technologies’ features are astounding when contrasted with the traditional LAMP stack. But what exactly is MERN Stack, and how does it work?

This article provides essential facts about MERN Stack development and the rationale behind its selection for product development. So let’s begin.

MERN stack deployment architecture

MERN stack uses a three-tier architecture comprising the web, server, and database layer, all communicating through JavaScript or JSON:

MERN Stack Deployment Architecture

Web Layer

This consists of the frontend, i.e., React.js, and it’s the top tier. This is the client side, where the user interacts with the app and its features and connects it to the backend.

Server Layer

The second tier comprises Express.js and Node.js, which handle the HTTP requests and responses obtained from the frontend when the user interacts. The Express.js framework runs inside the Node.js server, which interacts with the database to perform the necessary function.

Database layer

The third and the deepest layer contains MongoDB, which stores all the data received by the application. It is highly compatible with React and Express and is used for retrieving data, updating, or deleting it.

Components of MERN

MERN Stack consists of four components that are based on JavaScript: MongoDB, Express.js, React.js, and Node.js, all of which have been briefed below:

1. MongoDB

Unlike RDBMS, this database is not tabular but rather is accessed without any SQL queries. If your app saves any data (user profiles, content, comments, uploads, events, etc.), you’ll need a database that’s just as simple as React, Express, and Node.

In MongoDB, you can send JSON documents created by your React.js front end to the Express.js server, where they can be processed and (if they’re valid) immediately stored in MongoDB. Again, you should look at Atlas if you’re building in the cloud. Read on if you want to learn how to develop your own MERN stack.

2. Express.js

The next level down is Express.js, which runs inside a Node.js server. Express.js is a “fast, unopinionated, simple web framework for Node.js,” which is just what it is. Express.js offers robust models for managing HTTP requests and answers and URL routing (mapping an incoming URL to a server function).

You can link to the Express.js functions that power your application by sending XML HTTP Requests (XHRs), GET requests, or POST requests from your React.js front end. The data in your MongoDB database is accessed and updated by those functions, which use the Node.js drivers for MongoDB.

3. React.js

React.js, a declarative JavaScript framework for building dynamic client-side apps in HTML, makes up the top layer of the MERN stack. React allows you to connect simple components to data on your back-end server, connect complicated interfaces to those connections, and render those interfaces as HTML.

It contains all the bells and whistles you’d expect from a current web framework, including excellent support for forms, error handling, events, lists, and more. React excels at handling stateful, data-driven interfaces with little code and little hassle.

4. Node.js

It is a cross-platform mobile app development platform with an open-source JavaScript runtime environment for the back end. Node.js is a V8 engine running JS code outside a web app. Among other things, Node.js can be used to develop original content for web apps, collect form data, edit database data, and manage server files.

Node.js only executes one process simultaneously rather than starting new threads for every request. It also includes a collection of I/O primitives to keep JS code from getting stuck.

Further Read: The Best Technology Stack For Enterprise-level Application Development

Reasons to choose MERN stack development

MERN Stack: Reasons to Choose

1. Reusable code

A web application created with MERN technologies has interchangeable and reusable parts. As a result, code from one project can be reused on multiple platforms. This production-approved reusable component enables fast and efficient development of web apps, ensuring the shortest turnaround time for your product.

2. Better performance

Legacy LAMP languages like PHP are the foundation of all open-source systems like WordPress and Shopify. The Node.js features, on the other hand, the Node.js features are part of the MERN stack, making it possible to manage a sequence of tasks asynchronously. This improves programs’ capacity to handle demanding events and data-driven applications. As a result, the speed of the application as a whole is multiplied, and its performance is increased.

3. Cloud compatibility and high scalability

There is no possibility that scalability can be compromised because things are constantly being uploaded to all platforms. MongoDB, a NoSQL database highly scalable and compatible with cloud storage, is part of the MERN stack in addition to Node.js, which maximizes processing power. Thus, the information obtained from the platforms may be conveniently managed from any global location.

4. Customizable frontend reducing complexity

Due to the substantial HTML content and server-side scripting, the PHP-based LAMP architecture mainly uses backend coding and provides a static user experience. On the other hand, the Model View Controller (MVC) architecture supported by the MERN stack allows for a limitless degree of platform frontend customization. Thus, you can alter your user interface to offer a distinctive experience to your users rather than managing the content via backend panels.

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5. Amplified Security

It can link all MERN stack apps with safe hosting providers. By doing this, cyber-attacks are prevented, and all information is kept secure.

6. Real-time experience

A prominent feature of this tech stack is that it works in real-time, i.e., notifications, updates, etc., are done instantly, without the need to wait for the page to refresh. This comes in extremely handy, especially for social media or e-commerce apps.

7. Effective SEO

Pages are ranked in Google through SEO, which brings the app to the top page when related keywords are searched. MERN stack has an extremely low loading time and contains information such as page metadata, which facilitates SEO and helps to give the app gain more coverage.

8. Adaptable modifications

Since all scripts and components are hosted on a cloud platform, testing and modifying codes is comparatively more straightforward. The development and testing times are significantly shortened, providing efficient application changes.

9. Use of only one language

MERN stack uses only one language, i.e., Javascript eases the interaction between client and server. It also reduces the extra load of learning multiple languages and frameworks. Developers having a good understanding of Javascript can easily work with this tech stack.

10. Zero licensing

The majority of open-source platforms have minimal license fees. Despite being a completely open JavaScript stack, MERN has no licensing requirements. Additionally, libraries and public repositories can access them pretty quickly.

MERN stack vs. MEAN stack

MERN Stack vs. MEAN Stack

Although MEAN Stack Development has been around for a while, MERN is beginning to gain popularity. The MEAN stack comprises four open-source technologies: MongoDB, Express.js, Angular.js, and Node.js. The main difference between these two stacks, as shown by the acronyms, is Angular vs. React. Comparing Angular with React is pointless since, as was already mentioned, Angular is a full framework while React is a library. While MEAN will surely help you create huge apps, the MERN stack is best for creating small applications.

React.js is a JavaScript library, while Angular.js Development is the top component of the MEAN stack. You could ask yourself, “How do you distinguish a library from a framework?” A runtime environment and a library are combined to form a framework. We can incorporate a library into our program to speed up the development process. Features in the runtime environment make it possible to run JavaScript code. For instance, React.js employs JavaScript, whereas Angular.js uses Typescript.

The MEAN stack, which employs the four technologies MongoDB, Express.js, React.js, and Node.js, enhances the development process for various MERN stack project ideas by making the user interface (UI) more dynamic. It may be utilized for web and mobile applications and is superior to conventional ones. The developer had to find out how to connect traditional programs’ client and server sides since they utilized separate languages. At the same time, MERN stack technologies only use one language, “JavaScript,” making it easy to deal with them.

Markovate: Integrating MERN stack with product development

It is evident that MERN stack development is not going anywhere anytime soon, and the power it holds to build scalable and robust applications can prove to be extremely useful. This tech stack is self-sufficient to build a web application from scratch, knowing just one programming language. Thus, integrating it with our services and using it to deliver the best products for your enterprises is a must.

Being a product development company, Markovate looks at and researches the latest trends and technologies to come up with the best solutions for our clients for developing our applications. Throughout the entire product development lifecycle, from the ideation to the prototyping to the final design and execution, we make sure our team of designers and developers customize the product in all the possible ways they can, technical or non-technical, to help you; convert your idea into reality!

FAQs

1. What are the applications built with MERN Stack?

Applications such as WhatsApp, Instagram, Discovery, and Airbnb rely on the MERN stack.

2. Is MERN Stack the Future?

Yes, the MERN stack seems to have a bright future due to the popularity of JavaScript. Businesses are constantly looking for experienced full-stack developers to help with their applications.

3. Why Is MERN Stack Popular?

MERN stack might be popular because of its agility and because it is a one-language stack that uses one of the most popular libraries in the world (React) and is effective in terms of resources.

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