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A host agent already sends a full inventory snapshot on a cadence, and nothing served the endpoint it sends it to — so every one of those calls answered 404. It fails quietly by design, because a dropped snapshot is meant to be corrected by the next one, which is exactly why nobody noticed: the only symptom is a line in the agent's own log. Kept separate from the heartbeat because the two have different loss tolerance. A dropped beat moves a host towards offline and unplaces it; a dropped snapshot costs nothing until the next one arrives. Folding them together would let a malformed inventory field make a healthy host look dead. Three rules decide what a snapshot may do, and the last two are why this is one core function rather than a loop in the route: - a box we know, that the snapshot names, takes the reported state - a box we know that was running, and that the snapshot omits, is stopped and says so — absence inside a snapshot is information - a box the snapshot names that is not placed on the calling host is never created, only reported back as a divergence The scope is in the `where` clause and not in the agent asking politely about its own boxes: a machine credential is a long-lived secret sitting on hardware in somebody's living room. `pid` and `uptimeS` are accepted and deliberately dropped. A pid is a number in another machine's namespace, and uptime is derivable from a run's start time, which is already stored and already trustworthy.
apps/api
The public HTTP API for Nestri — a Hono app. One handler, run either as a Cloudflare Worker or as an ordinary HTTP server.
What it does
Exposes the JSON API consumed by frontends and other clients. Every route is a thin wrapper that
validates input, delegates to a domain function in @nestri/core,
and returns { data: ... }. All business logic lives in the core package.
Routes:
| Prefix | Purpose |
|---|---|
/ |
Health check |
/user |
Current user profile, fingerprints, linked accounts |
/steam |
Link / sync / unlink a Steam account |
/library |
Owned games with playtime |
/games |
Game catalog |
/pairing-code |
Device pairing codes |
/machine |
Host machines |
/access-token |
Short-lived access tokens |
/doc |
Generated OpenAPI spec |
Structure
app/
index.ts # The handler: middleware, routes, error handler, /doc
server.ts # The same handler behind a listening socket
middleware/auth.ts # Bearer JWT + admin shared-secret auth → Actor
routes/*.ts # Thin route namespaces (UserApi, SteamApi, ...)
utils/ # ErrorResponses, Result(), validator wrapping
wrangler.jsonc # Worker configuration, one environment per stage
Dockerfile # The container, built from the repository root
test/ # Route tests
Key details
- Auth:
Authorization: Bearer <JWT>verified against@nestri/auth; or thex-nestri-admin-tokenheader carryingADMIN_SHARED_SECRET, which bypasses JWT verification entirely and is required — it has no default anywhere. It is what authenticates the callers that have no user identity to present:POST /pairing-code/claim(a device being paired has no identity yet, which is the whole point),POST /games,POST /games/sync,POST /library/sync,GET /waitlist,POST /steam/linkon behalf of another user, andPOST /games/download-statewhen an operator is repairing state a box reported. - Errors: centralized
VisibleError→ typed JSON responses. - Settings arrive as bindings or as environment variables, and two of them have one spelling of
each: Postgres is
HYPERDRIVEorDATABASE_URL, and the route to the issuer is anAUTHservice binding orAUTH_INTERNAL_URL. Nothing here branches on which it got. AUTH_ISSUER_URLis the issuer's public URL and never the internal one, because it is compared literally against theissclaim on every token.
Running
bun run dev # under the Workers runtime, on :3000
bun run serve # as a plain process, on $PORT (default 3000)
Needs a Postgres database and a reachable issuer. Full list and deployment steps:
docs/deploy.md.