@stripe402/core

All TypeScript types, constants, header encoding/decoding, HMAC identity derivation, and error types for the stripe402 protocol.

No external dependencies (only Node.js built-in crypto). Framework-agnostic. Pulled in automatically when you install any other stripe402 package.

Installation

pnpm add @stripe402/core

Usually you don't need to install this directly — it's a dependency of @stripe402/server, @stripe402/express, @stripe402/client-axios, and @stripe402/client-fetch.

Exports

All exports are re-exported from the package entry point:

// types.ts — All TypeScript interfaces and types
export * from './types'

// constants.ts — Protocol version, header names, unit conversion
export * from './constants'

// headers.ts — Base64 JSON encoding/decoding
export * from './headers'

// identity.ts — HMAC-SHA256 client ID derivation
export * from './identity'

// errors.ts — Stripe402Error class
export * from './errors'

Sub-Pages

• Types & Interfaces — all 12+ interfaces and type definitions

• Constants & Utilities — version, headers, unit conversions

• Header Encoding — encodeHeader() and decodeHeader()

• Client Identity — deriveClientId()

• Error Classes — Stripe402Error