Detail Guide On MERN Stack

Detail Guide On MERN Stack

MERN stack is becoming popular amongst developers. But what are the advantages of doing so? Everything you need to know about MERN Stack is right here.

What is the MERN stack?

MERN stack is a structure for web development. Its major components are MongoDB, ExpressJS, ReactJS, and NodeJS.

  • MongoDB is a document database system.

  • Express(.js) is a Node.js web framework.

  • React(.js) is a JavaScript framework of the client-side.  

  • Node(.js)  is the most popular JavaScript web server.

In the browser-based application front-end, the user interacts with ReactJS UI components. The application backend, which is hosted on a server, serves this frontend using ExpressJS, which is built on top of NodeJS.Any interaction that results in a data update request is sent to the Express server, which gets data from the MongoDB database as needed and delivers it to the application’s frontend, where it is shown to the user.

How does the MERN stack work?

Let’s look at an example to let you comprehend the entire mechanism. Assume you’ve created a bakery e-commerce website. A buyer now goes to the website to buy a pastry.

  • This link directs the user to the pastry page from the web page. Customer visits our page that uses React.

  • The customer clicks the link to purchase a pastry. 

  • The pastry page does not require reloading because it is a single-page application.

  • However, we do not currently have any information about this pastry, so this state is empty.

  •  Using an API request, we will access the backend data.

  • It will take longer because the data retrieval procedure is asynchronous. 

  • However, the GIF for loading will be displayed while the data is being retrieved.

  • When ExpressJS is running on the server, it checks for the hit endpoint and calls the appropriate controller method to pull the data.

  • Mongoose can be used in the controller to retrieve data from the database, query it, and provide it as JSON data.

  • The JSON data is subsequently delivered back to React, which updates the state with the retrieved information.

  • Upon updating the component’s state, React will rerender it with the changed information, replacing the loading GIF with the pastry.

  • So MongoDB, React, Express, and Node work together.

Is MERN a full-stack?

MERN is a full-stack solution, with a display layer (React. js), an application layer (Express. js and Node. js), and a database layer (MongoDB) all following the usual 3-tier architecture pattern. 

How can MERN stack be used?

With MERN Stack, you can deploy full-stack web applications easily and more quickly. It includes MongoDB, Express, React, and Node.js.Its goal is to make the development process more efficient and seamless. 

Is the MERN stack a front-end or a back-end solution?

The MERN stack allows you to understand both the backend’s algorithmic and logical components, as well as the front end’s design, user experience, and animation components. This correlates to cost savings for businesses, as a single developer can complete tasks that would normally need two.

What language is MERN?

MongoDB, Express JS, React JS, and Node JS are short for(acronyms) MERN   (all based on JavaScript). Stack, on the other hand, is a collection of structures, programming languages, and resources. MERN is an open-source JavaScript Software Stack that aids in the development of web pages and full-stack online applications.

What makes MERN so popular?

The MERN stack’s popularity stems from the fact that it is a set of dependable and scalable technologies that can be used to create scalable master web applications with front-end and back-end database components.

How scalable is MERN?

MERN stack has high Scalability

With Node. js maximising processing capabilities and MongoDB – the NoSQL database, which is highly scalable and compatible with cloud storage – the MERN stack is highly versatile and scalable.

What are the benefits of using the MERN technology stack for business?

  • Open-source technology

  • Availability of free templates

  • Aids to building fast

  • Easy to use

  • Full-stack development

  • Good community support

Which companies use REACT?

Some popular companies that use React are –

  • Facebook

  • Uber

  • Netflix

  • Airbnb

  • Yahoo

  • The New York Times

  • Atlassian

  • Dropbox

What does MERN stand for?

MERN stands for MongoDB, Express, React, Node, after the four key technologies that make up the stack.

We hope you liked our guide on the MERN stack and it cleared most of your doubts. Click here if you want to learn more about Techstack and its importance in coding.