contract

type Config struct {
	Endpoint string `toml:"endpoint" json:"endpoint"`
	Contract string `toml:"contract" json:"contract"`
}

type Contract interface {
	GetOwner(tokenId string) (string, error)
}

type Erc interface {
	// BalanceAt 账户的余额
	BalanceAt(ctx context.Context, account string) (*big.Int, error)
	// PendingBalanceAt 待处理的余额
	PendingBalanceAt(ctx context.Context, account string) (*big.Int, error)
	// BalanceAtBlock 某区块时的账户余额
	BalanceAtBlock(ctx context.Context, account string, blockNumber int64) (*big.Int, error)
	// GenerateKey 生成公私钥
	GenerateKey() (string, string, error)
	Contract
}