ipld-eth-beacon-indexer/pkg/beaconclient/multihash.go
2022-05-13 09:04:54 -04:00

22 lines
690 B
Go

package beaconclient
import (
blockstore "github.com/ipfs/go-ipfs-blockstore"
dshelp "github.com/ipfs/go-ipfs-ds-help"
"github.com/multiformats/go-multihash"
"github.com/vulcanize/ipld-ethcl-indexer/pkg/loghelper"
)
const SSZ_SHA2_256_PREFIX uint64 = 0xb501
// MultihashKeyFromSSZRoot converts a SSZ-SHA2-256 root hash into a blockstore prefixed multihash key
func MultihashKeyFromSSZRoot(root []byte) (string, error) {
mh, err := multihash.Encode(root, SSZ_SHA2_256_PREFIX)
if err != nil {
loghelper.LogError(err).Error("Unable to create a multihash Key")
return "", err
}
dbKey := dshelp.MultihashToDsKey(mh)
return blockstore.BlockPrefix.String() + dbKey.String(), nil
}