Add to Cart Feature
Explore how to implement the add to cart feature by modeling user and product relationships, creating service and controller layers, and designing secure APIs in Spring Boot. Understand exception handling for invalid products and test the API integration to ensure functionality.
Model
The model should have an association with User, Product, and quantity. We should also store createdDate, so that we can sort items in the cart. We can show the item that was added most recently at the top. But what type of relationship should it have?
Relationship
What will be the relationships between a User and a Cart? A user can have multiple cart items. So, they should have a many-to-one relationship.
Similarly, a ...