Method addAttribute

app/scanningcabinet/datastore.go:265–271

(ctx context.Context, pn blob.Ref, attr, val string)

}

func (h *handler) addAttribute(ctx context.Context, pn blob.Ref, attr, val string) error {
	ucl, err := schema.NewAddAttributeClaim(pn, attr, val).SetSigner(h.signer).JSON()
	if err != nil {
		return fmt.Errorf("could not create claim to add %v:%v on %v: %v", attr, val, pn, err)
	}
	return h.signAndSend(ctx, ucl)
}

func (h *handler) deleteNode(ctx context.Context, node blob.Ref) error {
	ucl, err := schema.NewDeleteClaim(node).SetSigner(h.signer).JSON()