Integration Events

Kind: pattern

Layer: Execution Core

Record: architecture:integration-events

Severity: recommended

Scope: service boundary, messaging

Canonical: Ontology

A design pattern that publishes a versioned public event, mapped from an internal domain event, for consumers outside the service.

Listed in Architecture principles, after Domain Events and before Asynchronous Communication.

Requires

• Message Contract
• Versioning

Reinforces

• Interoperability

Enables

• Cross-Service Communication

Conflicts with

• Internal Domain Event Leakage

In tension with

• Duplication with Domain Events

Tensions

• Integration Events / Duplication with Domain Events

Violated by

• Internal Domain Event Leakage

Severity

• recommended

Category

• Event / Messaging / Asynchronous Architecture

Linked from

• Contracts / Interfaces / Compatibility
• Core Vocabulary
• Event Messaging Async
• Severity levels
• The resolutions