spring-boot-event-driven

Repository for spring-boot-event-driven

Module	Description
API Gateway	Gateway for load balancer (if needed)
Service Discovery	Service to register sub modules (if needed)

Synchronous Process

Event Driven (Asynchronous) Process

Prerequisites

• JDK 1.8
• PostgreSQL : Create several database using database.sql file
• Apache Kafka

# this will install java 1.8, zookeeper, and kafka
$ brew install kafka

# this will run ZK and kafka as services
$ brew services start zookeeper
$ brew services start kafka

How to run

• Start Zookeeper, then Kafka
• Open application.yml Configure Database based on your own installation

db:
     name : db_name
     host : db_host
     port : 5432
     username : db_uname
     password : db_pass
     auto-reconnect : true
     ssl : false

• Run each main class using your own IDE as Spring Boot Application for order-api, customer-api, inventory-api, payment-api, product-api
• When all services already run, send payload through Rest Client into http://localhost:8080/order/start using this payload

{
	"transactionCode" : "01",
	"customer" : {
		"name" : "customer_01"
	},
	"order" : {
		"totalPrice" : 5000.0,
		"orderDetails" :[
			{
				"productId" : 1,
				"quantity" : 1,
				"price" : 5000.0
			}
			]
	},
	"payment" : {
		"paymentTotal" : 5000.0,
		"paymentType" : "cash",
		"paymentStatus" : "paid"
	}
}

DB Design

Database design available here : https://dbdiagram.io/d/5d43e562ced98361d6dd3d01