Project developed for apply concepts and experiences using microservice architecture based on simplified investment business rules of B3 (Brazilian Investment exchange)

B3Invest Config Server

Module responsible to centralize the configuration access (this configurations are public because the project is used just to study)

B3Invest Eureka Server

Module responsible to cloud server and service discover

 Default Port: 8761

B3Invest Gateway Zuul

Module responsible to manager the request using intelligent routing. When arrive a requisition from the client the gateway zuul will send to correct microservice

 Default port: 8765

B3Invest Broker

Module represents the investment broker when the client has access and can view the B3 tickets and the respective values

B3Invest Manager

Module that simulate the B3 Project, when the tickets are registers and controllers by the Brazilian investments

B3Invest User

Module responsible from the user registers

B3Invest Oauth

Security module responsible to control the access from all the systems according to authentication and authorizations users rulers

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System Technologies

• Spring Boot: Spring Boot makes it easy to create stand-alone, production-grade Spring based Applications that you can "just run"
• Spring Cloud: providing both authentication and authorization
  • Feign: for external server communications
  • Netflix Zuul: Intelligent Routing
  • Netflix Ribbon: Client-side IPC library
  • Eureka: Cloud server and service discovery
  • Hystrix: fault tolerance e timeout
• Spring Security: providing authentication and authorization security
  • oauth2: oauth2 authentication bearer JWT token system
• JUnit: Unit Test
• Spock: A wonderful Groovy framework for Behaviour Driven Development-BDD test
• Lombok: Annotations helper library
• H2: A very fast database embedded for tests
• Redis: A open source in-memory data structure store used as a database and cache
• Swagger: Swagger open source and pro tools have helped millions of API developers, teams, and organizations deliver great APIs.
• Docker: The most famous container engine used to execute the B3Invest project with their external dependencies

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Architecture Design

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Security Authentication Flow

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Steps to run

1. Run Config Server
2. Run Eureka Server
3. Run gateway Zuul
4. Run others projects

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Postman Collection

• Postman collection

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Redis

https://redislabs.com/get-started-with-redis/#Option-C Docker image available on docker-compose file

 Coomand: docker-compose up -d

Swagger

• The generated swagger html page is available in the following address

    http://localhost:8080/swagger-ui/index.html

DockerFiles

1. Create network

docker network create b3invest-network

2. Config Server

mvnw clean package -DskipTests
docker build -t b3invest-configserver:v1 .
docker run -p 8888:8888 --name b3invest-configserver --network b3invest-network -e GITHUB_USER=rafacancian -e GITHUB_PASS=? b3invest-configserver:v1

3. Eureka Server

mvnw clean package -DskipTests
docker build -t b3invest-eurekaserver:v1 .
docker run -p 8761:8761 --name b3invest-eurekaserver --network b3invest-network b3invest-eurekaserver:v1

4. Gateway Zuul

mvnw clean package -DskipTests
docker build -t b3invest-gatewayzuul:v1 .
docker run -p 8765:8765 --name b3invest-gatewayzuul --network b3invest-network b3invest-gatewayzuul:v1

Utils commands

docker logs -f <container-id>
docker run -p <external-port>:<internal-port> --name <container-name> --network <network-name> <image-name:tag>

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CORS Configuration Test

Script used to test CORS

fetch("http://localhost:8765/b3invest-broker/ticket", {
  "headers": {
    "accept": "*/*",
    "accept-language": "en-US,en;q=0.9,pt-BR;q=0.8,pt;q=0.7",
    "sec-fetch-dest": "empty",
    "sec-fetch-mode": "cors",
    "sec-fetch-site": "cross-site"
  },
  "referrer": "http://localhost:3000",
  "referrerPolicy": "no-referrer-when-downgrade",
  "body": null,
  "method": "GET",
  "mode": "cors",
  "credentials": "omit"
});

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TODO

• ✔️ Fix gateway communication with oauth to generate JWT Token
• ✔️ B3Invest-Manager
  • ✔️ Swagger
  • ✔️ Hateoas
  • ✔️ Pagination
  • ✔️ Redis
• ✔️ B3Invest-Broker
  • ✔️ Swagger
  • ✔️ Hateoas
  • ✔️ Pagination
• ☑️ B3Invest-User
  • ✔️ Swagger
  • ☑️ Unit Tests
• ✔️ Docker Projects
  • ✔️ ConfigServer
  • ✔️ GatewayZuul
  • ✔️ EurekaServer
  • ✔️ Oauth
  • ✔️ User
  • ✔️ Manager
  • ✔️ Broker
  • ✔️ Redis