block_header

type Middleware func(Store) Store

type Option func(*Options)

type Options struct {
	Middlewares []Middleware
}

type Store interface {
	InsertTd(ctx context.Context, data *model.TotalDifficulty) error
	Insert(ctx context.Context, data *model.Header) error
	Delete(ctx context.Context, from, to int64) (err error)
	FindTd(ctx context.Context, hash []byte) (result *model.TotalDifficulty, err error)
	FindBlockByNumber(ctx context.Context, blockNumber int64) (result *model.Header, err error)
	FindBlockByHash(ctx context.Context, hash []byte) (result *model.Header, err error)
	FindLatestBlock(ctx context.Context) (result *model.Header, err error)
	CountBlocks(ctx context.Context) (uint64, error)
}