Event Sourcing: Architecture Pattern Overview and Implementation Guide

Short summary

Event Sourcing is an architecture pattern where systems store all state-changing events immutably instead of overwriting current state. You replay events to derive current state, providing perfect audit trails and the ability to reconstruct any past system state. Use it for financial systems, compliance-heavy apps, and complex workflows; avoid it for simple CRUD or small teams unfamiliar with event-driven patterns.

• •Store all state-changing events immutably instead of overwriting current state
• •Replay events to derive current state with perfect audit trail capabilities
• •Best for financial systems, compliance apps, and complex workflows; avoid for simple CRUD

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