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@espuni/core

v0.2.0

Published

Framework-free, isomorphic core shared by the espuni SDKs (AV DC-API/OID4VP fallback selection, deeplink/QR scheme, claim extraction, config builders)

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@espuni/core

Framework-free, isomorphic core shared by the espuni SDKs and the portal. Pure logic only — no I/O, no DOM, no environment access — so it runs identically in Node and the browser and is trivially unit-testable.

It is the shared "brain" behind the AV DC-API → OID4VP/QR fallback:

  • resolveAvProtocol(hasDcApi, requested?) — DC API (ISO 18013-7) vs OID4VP selection.
  • rewriteDeeplinkScheme(uri, scheme?) / resolveAvDeeplinkScheme(value?) — openid4vp:// → av:// rewrite.
  • buildAvOfferLinks(offer, scheme?) — QR / same-device deeplink derivation.
  • extractAgeOver18(claims) — normalizes both CP result shapes (flat object and array-of-credentials).
  • buildFallbackVerifierConfig(...) — EUDIPLO redirect_uri presentation config.

Consumed today by apps/portal (via transpilePackages); intended to be the common core for the forthcoming @espuni/node and @espuni/browser SDKs so the fallback logic is written and tested once.

Workspace note: main/exports point at src/ for zero-build source consumption inside the monorepo. Switch to a dist build + conditional exports when publishing to npm.