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fix: eth_feeHistory reward values cannot be nil (#970)

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* eth_feeHistory reward values cannot be nil

* removed reward when rewardPercentiles is not specified

* fix lint

* refactor and fix typos

* add changelog

Co-authored-by: Freddy Caceres <freddy.caceres@crypto.com>
This commit is contained in:
Loredana Cirstea 2022-03-04 01:55:09 +02:00 committed by GitHub
parent 40d5eff9fa
commit caa1c5a6c6
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 24 additions and 10 deletions
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3
CHANGELOG.md
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@ -40,7 +40,8 @@ Ref: https://keepachangelog.com/en/1.0.0/
### Bug Fixes ### Bug Fixes
* (evm) [\#529](https://github.com/tharsis/ethermint/issues/529) support return value on trace tx response. * (evm) [\#529](https://github.com/tharsis/ethermint/issues/529) Add support return value on trace tx response.
* (rpc) [#970] (https://github.com/tharsis/ethermint/pull/970) Fix unexpected nil reward values on `eth_feeHistory` response
## Improvements ## Improvements

31
rpc/ethereum/backend/feebackend.go
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@ -115,6 +115,7 @@ func (e *EVMBackend) processBlock(
return nil return nil
} }
// FeeHistory returns data relevant for fee estimation based on the specified range of blocks.
func (e *EVMBackend) FeeHistory( func (e *EVMBackend) FeeHistory(
userBlockCount rpc.DecimalOrHex, // number blocks to fetch, maximum is 100 userBlockCount rpc.DecimalOrHex, // number blocks to fetch, maximum is 100
lastBlock rpc.BlockNumber, // the block to start search , to oldest lastBlock rpc.BlockNumber, // the block to start search , to oldest
@ -145,13 +146,16 @@ func (e *EVMBackend) FeeHistory(
// prepare space // prepare space
reward := make([][]*hexutil.Big, blockCount) reward := make([][]*hexutil.Big, blockCount)
rewardcount := len(rewardPercentiles) rewardCount := len(rewardPercentiles)
for i := 0; i < int(blockCount); i++ { for i := 0; i < int(blockCount); i++ {
reward[i] = make([]*hexutil.Big, rewardcount) reward[i] = make([]*hexutil.Big, rewardCount)
} }
thisBaseFee := make([]*hexutil.Big, blockCount) thisBaseFee := make([]*hexutil.Big, blockCount)
thisGasUsedRatio := make([]float64, blockCount) thisGasUsedRatio := make([]float64, blockCount)
// rewards should only be calculated if reward percentiles were included
calculateRewards := rewardCount != 0
// fetch block // fetch block
for blockID := blockStart; blockID < blockEnd; blockID++ { for blockID := blockStart; blockID < blockEnd; blockID++ {
index := int32(blockID - blockStart) index := int32(blockID - blockStart)
@ -174,25 +178,34 @@ func (e *EVMBackend) FeeHistory(
return nil, err return nil, err
} }
onefeehistory := rpctypes.OneFeeHistory{} oneFeeHistory := rpctypes.OneFeeHistory{}
err = e.processBlock(tendermintblock, &ethBlock, rewardPercentiles, tendermintBlockResult, &onefeehistory) err = e.processBlock(tendermintblock, &ethBlock, rewardPercentiles, tendermintBlockResult, &oneFeeHistory)
if err != nil { if err != nil {
return nil, err return nil, err
} }
// copy // copy
thisBaseFee[index] = (*hexutil.Big)(onefeehistory.BaseFee) thisBaseFee[index] = (*hexutil.Big)(oneFeeHistory.BaseFee)
thisGasUsedRatio[index] = onefeehistory.GasUsedRatio thisGasUsedRatio[index] = oneFeeHistory.GasUsedRatio
for j := 0; j < rewardcount; j++ { if calculateRewards {
reward[index][j] = (*hexutil.Big)(onefeehistory.Reward[j]) for j := 0; j < rewardCount; j++ {
reward[index][j] = (*hexutil.Big)(oneFeeHistory.Reward[j])
if reward[index][j] == nil {
reward[index][j] = (*hexutil.Big)(big.NewInt(0))
}
}
} }
} }
feeHistory := rpctypes.FeeHistoryResult{ feeHistory := rpctypes.FeeHistoryResult{
OldestBlock: oldestBlock, OldestBlock: oldestBlock,
Reward: reward,
BaseFee: thisBaseFee, BaseFee: thisBaseFee,
GasUsedRatio: thisGasUsedRatio, GasUsedRatio: thisGasUsedRatio,
} }
if calculateRewards {
feeHistory.Reward = reward
}
return &feeHistory, nil return &feeHistory, nil
} }