jason/pos

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jason d53c772dd6 Add Milestones 1 & 2: full-stack POS foundation with admin UI

- 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>

2026-03-20 23:18:04 -05:00

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ecdsa-sig-formatter

Translate between JOSE and ASN.1/DER encodings for ECDSA signatures

Install

npm install ecdsa-sig-formatter --save

Usage

var format = require('ecdsa-sig-formatter');

var derSignature = '..'; // asn.1/DER encoded ecdsa signature

var joseSignature = format.derToJose(derSignature);

API

`.derToJose(Buffer|String signature, String alg)` -> `String`

Convert the ASN.1/DER encoded signature to a JOSE-style concatenated signature. Returns a base64 url encoded String.

If signature is a String, it should be base64 encoded
alg must be one of ES256, ES384 or ES512

`.joseToDer(Buffer|String signature, String alg)` -> `Buffer`

Convert the JOSE-style concatenated signature to an ASN.1/DER encoded signature. Returns a Buffer

If signature is a String, it should be base64 url encoded
alg must be one of ES256, ES384 or ES512

Contributing

Fork the repository. Committing directly against this repository is highly discouraged.
Make your modifications in a branch, updating and writing new unit tests as necessary in the spec directory.
Ensure that all tests pass with npm test
rebase your changes against master. Do not merge.
Submit a pull request to this repository. Wait for tests to run and someone to chime in.

Code Style

This repository is configured with EditorConfig and ESLint rules.

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