v0 source pure

1const (
2	MetadataUpdateEvent = "MetadataUpdate"
3	TokenURIUpdateEvent = "TokenURIUpdate"
4)

1const Kind = "metadata"

1var (
2	ErrTokenNotMinted = errors.New("token is not minted")
3	ErrNoMetadata     = errors.New("token has no metadata")
4	ErrNoTokenURI     = errors.New("token has no uri")
5)

1func NewMetadata(coreLedger *grc721.PrivateLedger) (*Metadata, *Ledger)

 1type Data struct {
 2	Image           string
 3	ImageData       string
 4	ExternalURL     string
 5	Description     string
 6	Name            string
 7	Attributes      []Trait
 8	BackgroundColor string
 9	AnimationURL    string
10	YoutubeURL      string
11}

1type Ledger struct {
2	core *grc721.Token
3	st   *storage
4}

1type Metadata struct {
2	core *grc721.Token
3	st   *storage
4}

1type Trait struct {
2	DisplayType string
3	TraitType   string
4	Value       string
5}