First Principles

Fundamentals of event sourcing architecture and design patterns.

Master the foundational concepts of event sourcing. These guides cover the essential building blocks you need to understand before implementing event-sourced systems.

Event Types

Design events for your domain. Learn about domain events, system events, integration events, and error events.

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Subjects

Model subjects in event-driven architecture. Understand what events are about and how to organize them around aggregates.

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Sources

Identify the origin of events. Track where events come from in distributed systems.

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CloudEvents

Standard event specification for cloud-native applications. Learn about the CloudEvents format and integration.

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Snapshots

Optimize event replay performance. Learn when and how to use snapshots in event-sourced systems.

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