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This repository shows how to implement Event Sourcing, CQRS and DDD in .NET Core, using a Bank as example.

The code has been used as example accompaining a few series of articles onmy personal blog:

• https://www.davidguida.net/event-sourcing-in-net-core-part-1-a-gentle-introduction/
• https://www.davidguida.net/event-sourcing-on-azure-part-1-architecture-plan/
• https://www.davidguida.net/event-sourcing-on-azure-part-2-events-persistence/
• https://www.davidguida.net/event-sourcing-on-azure-part-3-command-validation/
• https://www.davidguida.net/event-sourcing-on-azure-part-4-integration-events/
• https://www.davidguida.net/my-event-sourcing-journey-so-far/
• https://www.davidguida.net/event-sourcing-things-to-consider/

An ASP.NET Core API is used as entry-point for all the client-facing operations:

• create customers
• create accounts
• deposit money
• withdraw money

The Cloud can be hosted on Azure, using Azure Functions,Storage Table to persist Events and Materialized Views, andServiceBus to broadcast the Events.

An "on-premise" version is available as well, which uses

• Kafka to broadcast the integration events
• MongoDb to store the QueryModels used by the APIor SQLServer can be used as persistence layer for aggregates.
• several options are available for the Persistence layer to store aggregates:
  • SQLServer
  • EventStore
  • EvenireDB

The on-premise infrastructure can be spin up by simply runningdocker-compose up from the root folder.

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