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Wanjohi f30a1432f8 fix(deploy): require every credential, and give sandbox its own domain

Three things review caught, and one shape correction.

**No credential has a default any more.** The compose file shipped
`ADMIN_SHARED_SECRET` falling back to a value written in this repository —
and that header bypasses token verification entirely, so anyone reading
the file could act as an operator against any deployment that had not
overridden it. A default is worth less than it looks here: the deployment
that never set the variable is exactly the one where the default is public.
Every credential now comes from `.env`, and compose refuses to start naming
the variable it wanted. That also takes the last literal password out of a
tracked file.

**The origin ports are on loopback.** Both services speak plain HTTP and
mark no cookie `Secure`, because both expect to sit behind something that
terminates TLS. Published on every interface they were a way to reach the
issuer around that proxy, with sign-in codes and tokens in clear text.

**Mail settings are passed through rather than fixed.** The issuer was
pinned to printing sign-in codes to its log, and the three delivery
settings never reached it — so the documented way to configure mail could
not work, and every code and recipient went to the container log instead.
Printing codes is now asked for in `.env` like everything else, and with
nothing configured the issuer refuses to send rather than logging.

**Sandbox becomes a domain rather than a prefix.** `api.sandbox.nestri.io`
and `auth.sandbox.nestri.io`, because sandbox holds whatever is not
production and that set grows. One certificate for `*.sandbox.nestri.io`
then covers all of it, including unpredictable per-pull-request names,
and cannot be presented for production's own domain — which the zone-wide
wildcard the previous shape leaned on could.

Also drops `STEAM_API_KEY`. It was declared in two type definitions and
read by nothing: linking an account makes no outbound call that needs it.

2026-09-05 15:58:21 +03:00

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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 the x-nestri-admin-token header carrying ADMIN_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/link on behalf of another user, and POST /games/download-state when 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 HYPERDRIVE or DATABASE_URL, and the route to the issuer is an AUTH service binding or AUTH_INTERNAL_URL. Nothing here branches on which it got.
AUTH_ISSUER_URL is the issuer's public URL and never the internal one, because it is compared literally against the iss claim 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.

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