Spring cloud microservices examples

Microservices examples using spring cloud netflix integration with spring boot apps

Case Study:

Building a microservice application to track investment portfolio of an user like ET-Portfolio or Money Control. This should track the investments of a user and could show return of investment over a period of time.

Scope this case study is to only track investments of type stock and mutual funds.

Solution:

Micro-Services	Description
Portfolio Tracker DB Service	Stores user quotes information. Quotes can be of type Stock or Mutual Fund
Portfolio Tracker Pricing Service	Talks to an external finance api application World Trading Data like yahoo finance apis to fetch fresh price quotes
Portfolio Tracker Aggregator Service	Interacts with both db service and pricing service to process the user portfolio data and fetch investment returns
Portfolio Tracker Registry Service	Acts as a service registry and api gateway

API :

api to save user quotes for a stock.

url: /api/register-portfolio-data/quotes
method:POST
headers:
content-type:application/json

body:
{
  "userId": 102,
  "quote": "AAPL",
  "quantity": 7.6,
  "price": 26.18,
  "type":"stock",
  "date": "2000-11-25"
}

api to fetch portfolio data with returns.

url: /api/investment/portfolio/stock/102
method:GET
headers:
content-type:application/json

response:
{
  "code": "AAPL",
  "description": "Apple Inc.",
  "currentPrice": 191.05,
  "quantity": 7.6,
  "purchasePrice": 26.18,
  "purchaseDate": "2000-11-25T00:00:00.000+0000",
  "totalValue": 1451.98,
  "profitMargin": 1253.012
}