EMR Message Exchange

• ✓AWS infrastructure — VPC, Lambda, Aurora Postgres, S3, EventBridge, DLQ
• ✓CI/CD pipeline — every push runs test → build → deploy → migrate → verify
• ✓Database schema deployed (5 tables)
• ✓Kno2 credentials loaded from Secrets Manager
• ✓Dispatcher tick running every minute
• ✓623 tests passing

• ◔Kno2 to allowlist our NAT egress IP 52.34.161.71
• ◔Kno2 to route inbound messages to our Direct address + webhook URL
• ◔Seed SendDestination rows (clinic → provider mappings)

Until Kno2 completes their side, outbound messages queue as PENDING, retry with backoff, then land in the dead-letter queue with a CloudWatch alarm. The app itself stays up.

• →Health endpoint
• →GitLab repo
• →README
• →CloudWatch dashboard (requires AWS SSO)