- Node/Express/TypeScript API under /api/v1 with JWT auth (login, refresh, logout, /me) - Prisma schema: vendors, users, roles, products, categories, taxes, transactions - SQLite for local dev; Postgres via docker-compose for production - Full CRUD routes for vendors, users, categories, taxes, products with Zod validation and RBAC - Paginated list endpoints scoped per vendor; refresh token rotation - React/TypeScript admin SPA (Vite): login, protected routing, sidebar layout - Pages: Dashboard, Catalog (tabbed Products/Categories/Taxes), Users, Vendor Settings - Shared UI: Table, Modal, FormField, Btn, PageHeader components - Multi-stage Dockerfile; docker-compose with Postgres healthcheck - Seed script with demo vendor and owner account - INSTRUCTIONS.md, ROADMAP.md, .claude/launch.json for dev server config Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
side-channel 
Store information about any JS value in a side channel. Uses WeakMap if available.
Warning: in an environment that lacks WeakMap, this implementation will leak memory until you delete the key.
Getting started
npm install --save side-channel
Usage/Examples
const assert = require('assert');
const getSideChannel = require('side-channel');
const channel = getSideChannel();
const key = {};
assert.equal(channel.has(key), false);
assert.throws(() => channel.assert(key), TypeError);
channel.set(key, 42);
channel.assert(key); // does not throw
assert.equal(channel.has(key), true);
assert.equal(channel.get(key), 42);
channel.delete(key);
assert.equal(channel.has(key), false);
assert.throws(() => channel.assert(key), TypeError);
Tests
Clone the repo, npm install, and run npm test
