Shopping-Cart application

Reference Documentation and Goals

The idea of this assessment is create CRUD API to manage products and orders

Create a new product
Get a list of all products
Update a product

The API should also support:

Placing an order
Retrieving all orders within a given time period

Tools

To implement this exercise we're going to use the following tools

maven 3.6.x
Java 11
Spring-boot as main framework
Spring-boot JPA
Swagger for API Documentation
Lombok as a tool to avoid boilerplate code

Decisions during implementation

For the API basic CRUD
DTO for the external model, we don't want to show our model externally, but for this case the difference is minimum
Use Converters fro Dto > Model and Model > Dto
FOr the product findAll we don't use pagination but should be an improvement
repository Layer doesn't make sense to test, is part of the spb framework

Answer Questions

You do not need to add authentication to your web service, but propose a protocol / method and justify your choice

Spring Boot Security with OAuth2 and provide authentication con Gmail or Github.
the reason is because it's simple and provide a confidence 3er party solution

How can you make the service redundant? What considerations should you do?

Not clear the question, but from my perspective if the service is redundat means data can be manage from different request, what dos it mean? It means manage the data from different queries and provide the redundant data. For example, to be redundant we can provide extra information of products when you get an order and also the products could be store all the orders related but it's not good practice. In a service mesh with data distributed in different microservices, these services manage their own data and we have to try avoid coupling and store same data in different places.

To Start

folder docker/ and run $docker-compose up http://localhost:8080/actuator/... to the status of the app Swagger http://localhost:8080/swagger-ui.html

Improvements

test for the other two converters
Improve immutability with lombok and entities, jpa etc.

Examples

## Create Product
curl --location --request POST 'http://localhost:8080/api/product' \
--header 'Content-Type: application/json' \
--data-raw '{
	"name": "orangeTshirt1",
	"price": 200
}'

## Find Product
curl --location --request GET 'http://localhost:8080/api/product/orangeTshirt1'

## Update Product
curl --location --request PUT 'http://localhost:8080/api/product' \
--header 'Content-Type: application/json' \
--data-raw '{
        "id": 1,
        "name": "orangeTshirt1",
        "price": 130.0
    }'

## Create an Order
curl --location --request POST 'http://localhost:8080/api/order' \
--header 'Content-Type: application/json' \
--data-raw '{
	"email": "a@a.com",
	"products": ["2","4"]
}'

## Retrieving all orders within a given time period 
curl --location --request GET 'http://localhost:8080/api/order?date=2019-01-01'

sgaguadero/cart-shopping