Reference.TransactionalOutbox

Reference implemetnation of the transactional outbox pattern.

Tech Stack

• Dotnet 6
• AWS SNS/SQS
• Sql Server

Implementation Notes

• Keep dependencies minimal
• Code organized in Usecase pattern
• Sample does not have business domain to require unit tests. But should be added it if domain logic is introduced.
• Integration tests focus on the database and messaging infrastructure.
• Component tests focus on the ablity of the service being able to run multiple instances in parellel for scalability.

Testing

• Tests are run using docker compose
• Docker compose includes
  • Sql Server
  • LocalStack (SQS/SNS)
  • Api (publishing the messages)
  • ngnix proxy ( for testing the api in scaled mode )

Run Tests

sh docker-test.sh <number of instances>

example,
sh docker-test.sh 3