dp1-js

Node.js SDK for the DP-1 protocol, rewritten as a JS fork of dp1-go.

Purpose

This package keeps the DP-1 logic, tests, and repo structure aligned with dp1-go while using a minimal Node-only dependency footprint.

What is included

• Parse and validate DP-1 playlist, playlist-group, ref manifest, and channel documents.
• Canonicalize signing payloads using RFC 8785-style JSON canonicalization.
• Compute and verify payload hashes and Ed25519 signatures.
• Merge display preferences with DP-1 resolution order.
• Provide the same top-level module boundaries as dp1-go.

Runtime

• Node.js 22+
• Dual ESM/CJS package entrypoints
• Runtime dependencies are installed through npm

Install

npm install dp1-js-test

Usage

import { ParseDPVersion, PayloadHashString, DisplayForItem } from 'dp1-js-test';

const version = ParseDPVersion('1.1.0');
const hash = PayloadHashString(Buffer.from(JSON.stringify({ title: 'Example', items: [] })));

The package root is the supported public entrypoint. Node consumers can use either import or require thanks to the package exports map.

Repo layout

The repository keeps the Go-style structure translated into JS:

• src/playlist
• src/playlistgroup
• src/refmanifest
• src/merge
• src/sign
• src/jcs
• src/extension/*

Development

npm test
npm run lint

Notes

• This rewrite is intentionally dependency-light.
• The JS API is aligned with dp1-go rather than the deprecated older dp1-js naming.