Inside the backend folder, create the following files and folders: backend/ cors: A package to enable Cross-Origin Resource Sharing (CORS) for our application.Ĭreate a new folder named backend in the mern-app directory.dotenv: A package that allows us to load environment variables from a.mongoose: A MongoDB object modeling tool that provides a schema-based solution for our database. express: The Express.js framework for building our web application.Here's a brief overview of these packages: Run the following commands to create a new directory and navigate into it: Open your terminal or command prompt and navigate to the folder where you want to create your project. A code editor like Visual Studio Code: Download here.Ensure that you have the following software installed on your machine: Node.js: An open-source, cross-platform JavaScript runtime environment that executes JavaScript code outside of a browser.īefore we begin building our application, let's set up the development environment.It enables developers to create reusable UI components that manage their own state. React: A popular JavaScript library for building user interfaces, created by Facebook.Express: A minimal and flexible web application framework for Node.js, designed to make building web applications and APIs easier.It is highly scalable and provides high performance. MongoDB: A NoSQL database that stores data in a flexible, JSON-like format called BSON.Together, they form a complete technology stack that enables you to build both the frontend and backend of a web application. MERN is an acronym that stands for MongoDB, Express, React, and Node.js. We will also provide you with clear, beginner-friendly explanations and code examples to help you understand and follow along. In this blog post, we will dive into the process of building a MERN application from scratch, focusing on each technology's role and how they interact with one another. This powerful combination of technologies enables developers to create scalable and feature-rich applications with ease. Building a full-stack application has never been easier with the MERN stack, which consists of MongoDB, Express, React, and Node.js.
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