Connected · API 42 ms
Run guided demo

Runtime evidence / portfolio environment

Systems

BUILD / 0.1.0

Demo architecture

API gatewayReady/ready
PostgreSQLReadymigration 001
SSE event streamReadylive updates
In-process outbox relayReadybounded retries
Delivery simulatorDemolocal only
Demo seedReadyappend-only runs

Deployment record

Version
fieldrelay@0.1.0
Source
GitHub release provenance
Target
Shared VPS / isolated Compose
API schema
OpenAPI 3.1
Data
Synthetic / append-only runs

Operational path

One correlation ID across every boundary
01AndroidOffline queue
→
02Node APIIdempotency
→
03PostgreSQLMutation + outbox
→
04Delivery relayAPI-hosted demo path
→
05DestinationSimulator / adapter

Structured logs

Recent errors

Open delivery →
2026-08-31T14:36:11.128-06:00  ERROR  delivery_failed  delivery=DL-019 status=503 attempt=3 correlation=corr_fr0842_b17e
2026-08-31T14:37:12.201-06:00  WARN   dead_lettered   delivery=DL-019 queue=integration-delivery-dlq