MERN notes.txt

Express:
1. NPM init (to follow the setup process) -> create package.json
2. add dependencies (using npm install)
    npm install express mongoose body-parser bcryptjs validation config cors
3. add app.js to create the basic express js instance
4. modify package.json file to include app.js and change the script route

Mongo: (using atlas)
1. Create a new project
2. Create a new database cluster 
3. Create Config folder, and add default.json and db.js.
4. Update app.js.

Create Routes:
1. Create routes folder -> books.js -> routes
2. Craete models folder -> book.js -> database model

Create Frontend (React):
1. npx create-react-app my-app (The project name must be in lowercase letters)
2. edit public/index.html 
3. npm install react-router-dom axios
4. create src/components
    touch CreateBook.js
    touch ShowBookList.js
    touch BookCard.js
    touch ShowBookDetails.js
    touch UpdateBookInfo.js
5. Replace app.js in frontend-react/src/app.js -> defining react routes
6. Update app.css

Connect Frontend to Backend