Cloudflare Worker

TL;DR — Hono-based Worker with D1 for event history and KV for device tokens. Deployed to Cloudflare's edge.

API routes

Method	Path	Description
GET	/status	Health check
POST	/register	Register device token
POST	/event	Submit usage event
GET	/history	Get event history
GET	/device	List registered devices
DELETE	/device/:token	Unregister device

Storage

• KV (HOWLALERT_DEVICES) — Device token registry, keyed by device:{userId}:{token}
• D1 (howlalert-db) — Event history with daily aggregation queries

Authentication

All endpoints (except /status) require an Authorization: Bearer {token} header. In production this is an Apple identity token; in development any string is accepted.