Event — Event-Driven Architecture Reference#

Quick-reference skill for event-driven architecture, event sourcing, pub/sub patterns, and stream processing.

When to Use#

• Designing event-driven microservice architectures
• Implementing pub/sub or event bus patterns
• Building event sourcing and CQRS systems
• Choosing between event brokers (Kafka, RabbitMQ, etc.)
• Handling event ordering, idempotency, and exactly-once semantics

Commands#

intro#

bash

scripts/script.sh intro

Overview of event-driven architecture — patterns, benefits, and tradeoffs.

patterns#

bash

scripts/script.sh patterns

Core patterns — pub/sub, event sourcing, CQRS, saga, choreography.

design#

bash

scripts/script.sh design

Event design — naming, schema, versioning, and payload structure.

brokers#

bash

scripts/script.sh brokers

Event broker comparison — Kafka, RabbitMQ, NATS, Pulsar, SQS, EventBridge.

sourcing#

bash

scripts/script.sh sourcing

Event sourcing deep dive — event store, projections, snapshots.

delivery#

bash

scripts/script.sh delivery

Delivery guarantees — at-most-once, at-least-once, exactly-once.

stream#

bash

scripts/script.sh stream

Stream processing — windowing, aggregation, and real-time analytics.

checklist#

bash

scripts/script.sh checklist

Event-driven architecture checklist.

help#

bash

scripts/script.sh help

version#

bash

scripts/script.sh version

Configuration#

VariableDescriptionEVENT_DIRData directory (default: ~/.event/)

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