Build CRUD app using MERN(MongoDB, Express, React, Node.js)

Set up your MongoDB Atlas database for a MERN CRUD app, create an organization and project, initialize a free-tier cluster, configure access, and connect from your local environment.

Set up an express project by initializing npm in a directory, installing express and nodemon, and running app.js that listens on port 4000 with a / route returning helloworld.

define express routes on the root path and create /doc and /random endpoints using get, post, and delete. implement middleware that runs before each response.

Install cors and body-parser, build a books router with express router, and implement get, post, patch, and delete at /books, testing on localhost 4000 before database integration.

Connect express apps to MongoDB with Mongoose, define a book model with title and description, and implement CRUD operations with error handling. Verify the connection prints connected to database.

Set up a React front end for a MERN app by creating a new React project, wiring an API module to connect to MongoDB, and implementing book CRUD operations.

Create a table book component to display books retrieved from the backend, wiring React components to render book titles and descriptions from a MongoDB-backed API.

Build the add new data entry component in a MERN CRUD app to create a new book, manage form state for title and description, and submit via on create.

Implement delete and update features in a MERN app by adding a delete button that removes a record by id and a description update form that calls the backend API.