Transactional Outbox Pattern

Example implementation in Kotlin with Spring and PostgreSQL.

About

This repository is created specifically for the purpose of my article about the transactional outbox pattern. You can read it here:

• https://toporowicz.it/transactional-outbox-pattern-monolith-app
• https://dev.to/maciejtoporowicz/transactional-outbox-pattern-in-a-monolithic-application-1ooc

Requirements

• PostgreSQL >= 9.5
• schema from schema.sql present in the database

Configuration

Database host, port and credentials in src/main/resources/application.properties

How to run it

Build the app using mvn clean install and then run it using java -jar outbox-0.0.1-SNAPSHOT.jar.

How to use it

The app exposes a single HTTP endpoint POST /accounts. Make a request to it with a request body like:

{
    "name": "Maciej",
    "email": "[email protected]"
}

In up to 5 seconds you should see a log like:

Received event: AccountCreatedEvent(id=996b31e5-c8ad-45c0-97d0-744519b8c454, [email protected])