🎓 Integration Learning Path

Progress from basics to advanced integration patterns.

Level 1: Fundamentals (Day 1-2)

Goals

• Understand SEA™ integration architecture
• Set up local development environment
• Publish and consume first event

Materials

• Read README.md - Architecture overview
• Complete Quick_Start.md - Local setup
• Read Messaging.md - NATS basics

Exercises

1. Start local NATS with JetStream
2. Create a stream and consumer
3. Publish a test message
4. Consume and acknowledge it

Level 2: Core Patterns (Day 3-5)

Goals

• Implement outbox pattern
• Handle message idempotency
• Design REST APIs

Materials

• Read Outbox_Inbox.md
• Read API_Patterns.md
• Read Event_Streaming.md

Exercises

1. Add outbox table to a domain
2. Implement idempotent event handler
3. Create a REST endpoint with pagination
4. Add idempotency key support

Level 3: Production Ready (Week 2)

Goals

• Handle failures gracefully
• Implement external integrations
• Set up monitoring

Materials

• Read External_Systems.md
• Complete all Runbooks
• Read Observability Handbook

Exercises

1. Implement circuit breaker for external API
2. Create webhook receiver with signature verification
3. Set up DLQ monitoring alerts
4. Implement message replay procedure

Level 4: Advanced (Week 3+)

Goals

• Design complex event choreographies
• Implement saga patterns
• Optimize for scale

Materials

• SDS-047: Messaging Infrastructure
• ADR-032: Event Streaming Selection
• Related specs for specific integrations

Exercises

1. Design multi-service saga
2. Implement compensating transactions
3. Load test messaging infrastructure
4. Optimize consumer throughput

Assessment Checklist

• Can explain outbox/inbox pattern purpose
• Can troubleshoot NATS connectivity issues
• Can implement idempotent handlers
• Can design RESTful API endpoints
• Can process DLQ messages
• Can implement external system integration