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Every delivery was refused as a signature mismatch, and nothing in the error said why. The provider signs one of two ways. A `whsec_` prefix means Standard Webhooks, where the secret is a base64 key the verifier decodes; anything else is the older scheme, where the secret is used as its own raw bytes. Which one a secret belongs to is decided by when it was created, and every secret created now is the new one. The SDK's helper only implements the older scheme — it base64-encodes whatever it is handed, so a Standard Webhooks secret becomes the literal bytes of the string including its prefix, and every signature then fails against a key derived quite differently. The scheme is now read off the secret rather than configured, so rotating one cannot put the two out of step. The verifier for the new scheme is the same library the SDK uses underneath; nothing here hand-rolls crypto. Tested with a real signature rather than only a rejection. A mismatch is easy to assert by accident, and a test that only proved bad input is refused would have passed against the broken version too. Also teaches the product script to check shape and not just name: a one-time product where a subscription is wanted cannot be subscribed to at all, and reporting it as already-there hands back an id that fails at its first use.
packages/core
@nestri/core — the domain layer for Nestri. All business logic, database access, and
serialization lives here. The API and auth workers are thin pass-through translation layers on top.
What it contains
| Area | Files | Purpose |
|---|---|---|
| db | db/index.ts, db/types.ts, db/test.ts |
Drizzle + Postgres (Database.use/transaction), ULID column helpers |
| users | user/* |
Users, linked accounts, fingerprints, library |
| teams | team/* |
Teams + membership with roles (team_member) |
| games | game/* |
Game catalog, depot content, per-host downloads |
| steam | steam/index.ts |
Steam API integration & SSH identity resolution |
| auth | auth/subjects.ts |
JWT subjects shared with the auth worker |
| infra | env.ts, context.ts, actor.ts, fn.ts, id.ts, error.ts, examples.ts |
Environment, Actor model, zod-typed fn() wrappers, IDs, error types, examples |
| migrations | migrations/ |
Drizzle-kit SQL migrations for Postgres schema |
Conventions
- Domain namespaces (
user/,team/, ...) expose typedfn()functions that validate input with a Zod schema and serialize DB rows inside the function boundary — the API routes never see raw table rows. - Actor model:
Actor.userID,Actor.type, ... pull the current authenticated identity fromAsyncLocalStorage(set by the API middleware / auth worker) without passing it through call chains. - Soft delete: every table has
time_deleted; queries filter withisNull(table.timeDeleted). - IDs: ULIDs via
Identifier.ascending('user')→usr_.... - Tables are defined in
*.sql.tsfiles (drizzle) with namespaces inindex.ts. - Environment is read through
Env.get(), init by worker bindings.
Structure
src/
├── actor.ts, env.ts, id.ts, fn.ts, error.ts, examples.ts
├── db/
├── auth/
├── user/ (user.sql.ts, linked-account.*, fingerprint.*, library.*, index.ts)
├── team/ (team.sql.ts, member.*, index.ts)
├── game/ (game.sql.ts, depot.*, download.*, index.ts)
├── steam/ (index.ts)
├── pairing-code/
├── access-token/
└── machine/
Scripts
bun run db:push # push schema (drizzle-kit)
bun run db # open drizzle-kit
Usage
import { Team } from '@nestri/core/team/index';
import { Database } from '@nestri/core/db/index';
const team = await Team.fromID('tem_...');