Event Sourcing Guide | Event-Driven Architecture & Event Stores

Building Applications with Complete Event History

Understanding Event Sourcing: Event Sourcing is an architectural pattern where changes to application state are stored as a sequence of events rather than storing the current state directly.

Event Sourcing provides a complete audit trail and enables powerful capabilities like temporal queries, replayability, and building new features based on historical data.

Event Sourcing Adoption

Example: Event Sourcing Implementation: Aggregate with Event Sourcing – This approach involves defining aggregates as a series of events that represent their state transitions.

By persisting these events, you can reconstruct the aggregate's state at any point in time, allowing for flexible querying and analysis.

work well together: Event Sourcing provides the event store, Event-Dri

Event Sourcing focuses on persistence; Event-Driven Architecture focuses on communication. This separation of concerns allows for independent scaling and evolution of each component.

How does Event Sourcing work with CQRS? – Event Sourcing complements CQRS (Command Query Responsibility Segregation) by providing a robust event stream for updating the system state, while CQRS handles queries efficiently.

Frequently asked questions