Java SpringBoot Backend

Microservice-based architecture that implements:

• Auth Microservice which retrieves Jwt Token to access the other services.
• API Gateway to filter and redirect requests.
• Service Discovery with Eureka to hide IP on requests between microservices, using only Gateway URI.
• Simple Store Service to test endpoints, auth and redirect.

Java version: 17

Spring Boot: 3.0.5

API

By using the API Gateway URI: http://localhost:9000

• Auth Service Endpoints

  Endpoint	Method	Param	Body	Response
  /auth/register	POST	---	{"username": "xx", "email": "xx@...", "password": "XX"}	201, 500
  /auth/login	POST	---	{"username": "xx", "password": "XX"}	JwtToken(STRING)
  /auth/validate (test)	GET	"token": JwtToken	---	200, 400

• Store API Endpoints

  Endpoint	Method	Param	Body	Response
  /cart	GET	---	---	200, 500
  /cart	POST	---	{"products": []}	201, 500
  /cart/{cartId}/products/{productId}	PUT	---	---	200, 500
  /cart/{cartId}/products/{productId}	DELETE	---	---	200, 500
  /cart/{cartId}	DELETE	---	---	200, 500
  /products	GET	---	---	200, 500
  /products	POST	---	{"name": "XX", "price": 0, "stock": 0}	201, 500
  /products/{productId}	DELETE	---	---	200, 500

Docker

Deploy backend on containers

Kubernetes

Deploy containerized backend on Kubernetes cluster

AWS Deploy

Deploy Docker containers on EC2 instance

Future Improvements:

• All
  • Dockerize services with config params secured.
• Auth Service
  • Role implementation.
  • Logout.
  • Destroy Jwt when init service
  • SQL Database instead H2.
• Store Service
  • SQL Database instead H2.
  • Cart using hashset of products.
• API Gateway
  • Role and user extract on Jwt.
  • Check predicates and filters to improve security.