AttestoPhoenix.Controller.DeferredCredentialController (AttestoPhoenix v2.7.0)

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OID4VCI Deferred Credential Endpoint (draft-ietf-oauth-openid4vci §9).

Completes a credential whose issuance was deferred at the Credential endpoint. The wallet polls this endpoint with the same access token and the transaction_id it was given at deferral, protected exactly like the Credential endpoint (RFC 6750 bearer token via AttestoPhoenix.ProtectedResource). Issuance completion is host policy through :build_deferred_credential; the library owns access-token verification and SD-JWT VC signing/response framing.

Summary

Functions

create(conn, params)

Complete a deferred credential for an authenticated wallet.

Functions

create(conn, params)

@spec create(Plug.Conn.t(), map()) :: Plug.Conn.t()

Complete a deferred credential for an authenticated wallet.

Returns the same immediate-issuance response shape as the Credential endpoint (Attesto.CredentialResponse.build/2) once the host reports the credential is ready. {:error, :issuance_pending} from the host's :build_deferred_credential callback is reported as the OID4VCI issuance_pending error (status 400) so the wallet retries later; any other host error maps to invalid_credential_request.