DDD in Go

Implement domain-driven design in Go by structuring code around domain concepts to manage complex business logic. You define base aggregates and entities to enforce invariants, then use an event-driven repository to persist these models across microservice boundaries.

Separate read and write concerns in a Go application by applying the CQRS pattern alongside domain repositories. This isolation allows you to split query operations from command execution, optimizing persistence and scaling for domain models.

Orchestrate long-running workflows across Go services by implementing the Saga pattern. This coordinates multi-step processes across service boundaries, ensuring consistent state transitions and managing compensating actions for event-driven communication.

Communicate state changes across domain boundaries in Golang by implementing domain events and an event bus. This mechanism broadcasts state transitions to relevant aggregates or microservices, maintaining clear separation while enabling event-driven communication.

You need event sourcing for Go domain models when you require a persistent, append-only log of state changes. This pattern reconstructs aggregate states by replaying past domain events, providing an audit trail and enabling resilient event-driven systems.