Cakes Store

Order cakes service for the cakes store

Description

This project is made for educational purposes. Main goal: to learn Spring Boot and Kotlin

Create two microservices:

Cake Assortment Service

Microservice with private GRpc API:

• AddCake(name, price, cookingTime)
• RemoveCake(name)
• GetCake(name)

Every cake has name, price and cooking time. The list of cakes should be stored in the database.

Cake Order Service

Microservice with public GRpc API:

• OrderCake(name)
• CheckOrderStatus(statusId)

A list of the orders should be stored in the database. You can see the status of the order. The cake is selected by name (inside will be a lookup from the Assortment of Cakes service). Cake baking is performed in the background. Each service has its own database.

On application start, the baking process for new and unfinished orders restarts.

Technologies

• Kotlin
• Spring Boot
• Maven
• GRpc
• Flyway
• Mybatis
• PostgreSQL
• Docker
• Docker Compose

Architecture Diagram

Run

mvmw package
docker-compose up -d --build

You can check running service instances in Eureka web interface: http://localhost:8761/

GRpc Client

Firstly, install grpcc npm package:

npm install -g grpcc

Then, you can call order service grpc api:

cd order-proto/src/main/proto/
grpcc -i -p ./CakeOrder.proto -a localhost:9090

client.orderCake({cakeName: "Butter"}, pr) // will return orderId

client.checkOrderStatus({orderId: YOUR_ORDER_ID}, pr) // will return order status

Or you can edit available cakes list:

cd assortment-proto/src/main/proto/
grpcc -i -p ./CakesAssortment.proto -a localhost:6565

client.addCake({name: "Napoleon", price: 1000, cookingTime: 180000}, pr)
client.removeCake({name: "Napoleon"}, pr)
client.getCake({name: "Napoleon"}, pr)
client.getCake({id: 1}, pr)