Example implementation in Kotlin with Spring and PostgreSQL.

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

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

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

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

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])