blockchain

type Storage interface {
	// ReadGenesisBlock returns the hard-coded genesis block
	ReadGenesisBlock(context.Context) (block.Block, error)
	// ReadBlockByHash returns a block by given hash
	ReadBlockByHash(context.Context, []byte) (block.Block, error)
	// ReadLastNBlocks returns last N blocks
	ReadLastNBlocks(context.Context, int) ([]block.Block, error)
	// ReadLastBlockHash returns a last known block hash
	ReadLastBlockHash(context.Context) ([]byte, error)
	// WriteBlock writes a given block to the storage
	WriteBlock(context.Context, block.Block) error
	// Close releases allocated resources
	Close(context.Context) error
	transaction.Storage
}