Module linktype 

GS1 Digital Link link-type negotiation.

When a resolver receives a Digital Link request, the client can specify which representation it wants via:

• Query parameter: ?linkType=gs1:epil (product information page)
• HTTP Accept header: application/json, application/ld+json, etc.

The ESPR mandates that DPP data is resolvable through GS1 Digital Link. Different consumers need different representations:

• A consumer scanning a QR code wants an HTML product page.
• A machine client wants JSON-LD or raw DPP JSON.
• A market surveillance authority wants the full signed DPP payload.

Module layout

• vocabulary — Gs1LinkType, the GS1 Web Vocabulary link types.
• media_type — DppMediaType for content negotiation.
• request — ResolutionRequest + HTTP Accept-header parsing.
• negotiate — LinkDescriptor + the negotiation algorithm.

Structs

LinkDescriptor

Describes one available representation of a DPP resource.

ResolutionRequest

A parsed resolution request combining the Digital Link with negotiation hints.

Enums

Audience

Re-export the canonical access vocabulary from dpp-domain. Who is asking for passport data.

Disclosure

Re-export the canonical access vocabulary from dpp-domain. How restricted a field is — the counterpart to Audience.

DppMediaType

Media types relevant to DPP content negotiation.

Gs1LinkType

GS1 defined link types for Digital Link resolution.

Functions

negotiate

Negotiate the best link descriptor for a given request.