Enviornment Variables:

1. DATABASE_URL : connection string for MongoDB
2. JWT_SECRET_TOKEN : some random bytes for creating JWT token for authentication

User Modules:

1. Signup:
   • url : /users/signup (POST)
   • body {name,email,password} (user with email should not exist already)
   • return created user
2. Signin:
   • url : /users/signin (POST)
   • body {email, password}
   • set cookies for further authtication and return the jwt token

** To access all below endpoints user should be logged in

Auth Middle ware:

• it check user is loggedin or not
• it also add user to req and user details from req are used by next funtions

Book Modules:

1. Create Book:

   • url : /books/ (POST)
   • body {barcode,title,author,genre,price}
   • it default set quantity to 0
   • return the created book

2. Get all books:

   • url : /books/ (GET)

3. Get book by barcode:

   • url : /books/:barcode (GET)

4. Update book by barcode (POST)

   • url : /books/update/:barcode
   • body {title, author, genre, price}

5. Enter book into store ( new books come into intentory so increase their quantity)

   • url : /books/entry (POST)
   • body {barcode, quantity}

Cart Module:

1. Add book to cart

   • url : /cart/ (POST)
   • body {barcode, quantity}
   • add given quantity of book into user cart

2. Remove book from cart

   • url : /cart/remove/:barcode (GET)
   • remove all book with gievn barcode from users cart

3. Get cart

   • url : /cart/ (GET)
   • return cart of the loggedin user

Order Module:

1. Create order from user cart

   • url : /orders/ (POST)
   • get user cart and create and order for it

2. Get order

   • url : /orders/ (GET)
   • return all order of the current user