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* Fatih: Add Cloud Design Patterns instructions for distributed systems architecture * Convert Cloud Design Patterns from instruction to skill * Update skills/cloud-design-patterns/SKILL.md Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> * Update skills/cloud-design-patterns/references/reliability-resilience.md Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> --------- Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
22 lines
715 B
Markdown
22 lines
715 B
Markdown
# Event-Driven Architecture Patterns
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## Event Sourcing Pattern
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**Problem**: Need complete audit trail of all changes to application state.
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**Solution**: Use an append-only store to record the full series of events that describe actions taken on data in a domain.
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**When to Use**:
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- Requiring complete audit trail
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- Implementing temporal queries (point-in-time state)
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- Supporting event replay and debugging
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- Implementing CQRS with eventual consistency
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**Implementation Considerations**:
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- Store events in append-only log
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- Rebuild current state by replaying events
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- Implement event versioning strategy
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- Handle event schema evolution
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- Consider storage growth over time
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- Implement snapshots for performance
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