ReactJS is a popular JavaScript library for building user interfaces, particularly for single-page applications. It’s used for handling view layer for web and mobile apps. React also allows you to create reusable UI components.
MongoDB is a source-available cross-platform document-oriented database program. Classified as a NoSQL database program, MongoDB uses JSON-like documents with optional schemas.
Although ReactJS and MongoDB are used in different parts of a full-stack JavaScript application (React in the frontend and MongoDB in the backend), they can work together to create a complete web application. Typically, you would need a backend framework like ExpressJS or NextJS to connect them.
Here’s a simple scenario of how ReactJS can be used with MongoDB:
1. User enters data from the React frontend, which gets sent as a request to the backend server (Note: ReactJS itself is not responsible for connecting to the MongoDB database, it just sends a request to the server).
1. The server, which could be created using Node.js and Express.js, will receive this request.
1. From the backend server, you connect to MongoDB using an Object Data Modelling (ODM) library like Mongoose. Mongoose allows you to define objects with a strongly-typed schema that is mapped to a MongoDB document.
1. You then perform the necessary CRUD operations (Create, Read, Update, Delete) in MongoDB. Typically, you would create models and schemas for your data using Mongoose.
1. Once MongoDB has fetched or modified the data, send back a response to the frontend where React will then update the UI based on the server’s response.
Keep in mind that this is a simplistic view of how ReactJS and MongoDB can be used together. In a real world situation, you would need to handle a lot more edge cases.
