cerc-io/laconicd-deprecated
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fix(rpc): optimize eth_getBalance endpoint (#1169)

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* optimize get balance endpoint

* add comment

* add changelog

Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com>
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crypto-facs 2022-07-11 11:04:45 -04:00 committed by GitHub
parent 9ae73b670b
commit da8fcc3ae2
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4 changed files with 16 additions and 2 deletions
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1
CHANGELOG.md
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@ -46,6 +46,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
### Improvements
* (feemarket) [\#1165](https://github.com/evmos/ethermint/pull/1165) Add hint in specs about different gas terminology for gas in Cosmos and Ethereum.
* (rpc) [\#1169](https://github.com/evmos/ethermint/pull/1169) Remove unnecessary queries from `getBlockNumber` function
## [v0.17.0] - 2022-06-27

1
rpc/backend/backend.go
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@ -61,6 +61,7 @@ type EVMBackend interface {
CurrentHeader() *ethtypes.Header
HeaderByNumber(blockNum types.BlockNumber) (*ethtypes.Header, error)
HeaderByHash(blockHash common.Hash) (*ethtypes.Header, error)
GetBlockNumberByHash(blockHash common.Hash) (*big.Int, error)
PendingTransactions() ([]*sdk.Tx, error)
GetTransactionCount(address common.Address, blockNum types.BlockNumber) (*hexutil.Uint64, error)
SendTransaction(args evmtypes.TransactionArgs) (common.Hash, error)

12
rpc/backend/evm_backend.go
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@ -369,6 +369,18 @@ func (b *Backend) HeaderByNumber(blockNum types.BlockNumber) (*ethtypes.Header,
return ethHeader, nil
}
// GetBlockNumberByHash returns the block height of given block hash
func (b *Backend) GetBlockNumberByHash(blockHash common.Hash) (*big.Int, error) {
resBlock, err := b.GetTendermintBlockByHash(blockHash)
if err != nil {
return nil, err
}
if resBlock == nil {
return nil, errors.Errorf("block not found for hash %s", blockHash.Hex())
}
return big.NewInt(resBlock.Block.Height), nil
}
// HeaderByHash returns the block header identified by hash.
func (b *Backend) HeaderByHash(blockHash common.Hash) (*ethtypes.Header, error) {
resBlock, err := b.GetTendermintBlockByHash(blockHash)

4
rpc/namespaces/ethereum/eth/api.go
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@ -1138,11 +1138,11 @@ func (e *PublicAPI) getBlockNumber(blockNrOrHash rpctypes.BlockNumberOrHash) (rp
case blockNrOrHash.BlockHash == nil && blockNrOrHash.BlockNumber == nil:
return rpctypes.EthEarliestBlockNumber, fmt.Errorf("types BlockHash and BlockNumber cannot be both nil")
case blockNrOrHash.BlockHash != nil:
blockHeader, err := e.backend.HeaderByHash(*blockNrOrHash.BlockHash)
blockNumber, err := e.backend.GetBlockNumberByHash(*blockNrOrHash.BlockHash)
if err != nil {
return rpctypes.EthEarliestBlockNumber, err
}
return rpctypes.NewBlockNumber(blockHeader.Number), nil
return rpctypes.NewBlockNumber(blockNumber), nil
case blockNrOrHash.BlockNumber != nil:
return *blockNrOrHash.BlockNumber, nil
default: