Event Demo

• Installation
• What's the demo for ?
• What's in this demo
• The stack

What's the demo for ?

This demo is intended to demonstrate the implementation of different patterns and architectures.

• The Event sourcing pattern.
• The Event driver pattern.
• The CQRS pattern.
• With the Hexagonal architecture.

What's in this demo

• The event sourcing pattern.
• The event driven pattern.
• The CQRS pattern with command and query.
• A fully asynchronous architecture.Concurently process.
• A pure Kotlin implementation of readmodel/projection.
• A Redis implementation of readmodel/projection.
• A pure Kotlin implementation of Event Store.
• A Postgresql implementation of Event Store.
• A pure Kotlin implementation of Event Bus.
• A RabbitMQ implementation of Event Bus.
• A Hexagonal architecture.
• Use of Web Sockets.
• Use of the classic Rest route.
• Simple usage of the JWT.
• The Ktor framework.
• The Koin Dependency Injection framework
• Concurrently process.
• Use of coroutines.
• Using docker compose for the stack with traefik.
• Use of flyway to migrate the postgresql schema.

The stack

Language

• Kotlin

Framework

• Ktor

Database

• Postgresql
  • with Flyway
• Redis
• RabbitMQ

Infra

• Docker
• Træfik

Architecture

• Workflow Diagram
• Entities and Projections Diagram