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POST /session takes an optional tier. The host starts the run at that size, the allowance is checked against it, and the run is billed at it. A run asked for without one runs at its box's size, as before. The size belongs to the run rather than the box: a box is a game's install on a machine, and the size is chosen each time it is played, so playing bigger never means a second box and a second install.
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, access token or host credentials → 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 …, carrying either a session token verified against@nestri/author a personal access token resolved from the database; or a registered host's ownx-nestri-machine-idandx-nestri-machine-secret. There is no shared secret and no credential that stands for more than one caller, so every route resolves to a specific user or a specific host — which is what lets a route say "the caller's own library" and mean it. - 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.