laconicd/rpc/ethereum/backend/feebackend.go

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rpc: `eth_feeHistory` (#734) * Problem: missing json rpc of eth_feeHistory #685 add oracle backend space ready structure ok refactoring return feehistory data flow ok basefee set gas used ratio computing reward add testing add gas used prepare data fill reward increase coin fixing api add mac add launch gas used ratio ok print element reward workes reward working fix panic value correct remove debugging log tidy up tidy up remove oracle tidy up fix handler crash add unit test tidy up add limit check reformat fix lint fix lint fix lint fix lint Update rpc/ethereum/backend/feebackend.go thanks Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> Update rpc/ethereum/backend/feebackend.go Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> Update rpc/ethereum/backend/feebackend.go thanks Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> Update rpc/ethereum/backend/feebackend.go Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> fix compile error split lines remove temporary string conversion return error if gaslimit is 0 move OneFeeHistory to types add comment only err check Update rpc/ethereum/backend/feebackend.go Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> Update rpc/ethereum/backend/feebackend.go Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> tidy up add feehistory-cap * Apply suggestions from code review * changelog Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> Co-authored-by: Federico Kunze Küllmer <federico.kunze94@gmail.com>
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package backend
import (
"fmt"
"math/big"
"sort"
"github.com/ethereum/go-ethereum/common/hexutil"
"github.com/ethereum/go-ethereum/rpc"
tmrpctypes "github.com/tendermint/tendermint/rpc/core/types"
rpctypes "github.com/tharsis/ethermint/rpc/ethereum/types"
evmtypes "github.com/tharsis/ethermint/x/evm/types"
)
type (
txGasAndReward struct {
gasUsed uint64
reward *big.Int
}
sortGasAndReward []txGasAndReward
)
func (s sortGasAndReward) Len() int { return len(s) }
func (s sortGasAndReward) Swap(i, j int) {
s[i], s[j] = s[j], s[i]
}
func (s sortGasAndReward) Less(i, j int) bool {
return s[i].reward.Cmp(s[j].reward) < 0
}
// output: targetOneFeeHistory
func (e *EVMBackend) processBlock(
tendermintBlock *tmrpctypes.ResultBlock,
ethBlock *map[string]interface{},
rewardPercentiles []float64,
tendermintBlockResult *tmrpctypes.ResultBlockResults,
targetOneFeeHistory *rpctypes.OneFeeHistory) error {
blockHeight := tendermintBlock.Block.Height
blockBaseFee, err := e.BaseFee(blockHeight)
if err != nil {
return err
}
// set basefee
targetOneFeeHistory.BaseFee = blockBaseFee
// set gasused ratio
gasLimitUint64 := (*ethBlock)["gasLimit"].(hexutil.Uint64)
gasUsedBig := (*ethBlock)["gasUsed"].(*hexutil.Big)
gasusedfloat, _ := new(big.Float).SetInt(gasUsedBig.ToInt()).Float64()
if gasLimitUint64 <= 0 {
return fmt.Errorf("gasLimit of block height %d should be bigger than 0 , current gaslimit %d", blockHeight, gasLimitUint64)
}
gasUsedRatio := gasusedfloat / float64(gasLimitUint64)
blockGasUsed := gasusedfloat
targetOneFeeHistory.GasUsedRatio = gasUsedRatio
rewardCount := len(rewardPercentiles)
targetOneFeeHistory.Reward = make([]*big.Int, rewardCount)
for i := 0; i < rewardCount; i++ {
targetOneFeeHistory.Reward[i] = big.NewInt(2000)
}
// check tendermintTxs
tendermintTxs := tendermintBlock.Block.Txs
tendermintTxResults := tendermintBlockResult.TxsResults
tendermintTxCount := len(tendermintTxs)
sorter := make(sortGasAndReward, tendermintTxCount)
for i := 0; i < tendermintTxCount; i++ {
eachTendermintTx := tendermintTxs[i]
eachTendermintTxResult := tendermintTxResults[i]
tx, err := e.clientCtx.TxConfig.TxDecoder()(eachTendermintTx)
if err != nil {
e.logger.Debug("failed to decode transaction in block", "height", blockHeight, "error", err.Error())
continue
}
txGasUsed := uint64(eachTendermintTxResult.GasUsed)
for _, msg := range tx.GetMsgs() {
ethMsg, ok := msg.(*evmtypes.MsgEthereumTx)
if !ok {
continue
}
tx := ethMsg.AsTransaction()
reward := tx.EffectiveGasTipValue(blockBaseFee)
if reward == nil {
reward = big.NewInt(0)
}
rpc: `eth_feeHistory` (#734) * Problem: missing json rpc of eth_feeHistory #685 add oracle backend space ready structure ok refactoring return feehistory data flow ok basefee set gas used ratio computing reward add testing add gas used prepare data fill reward increase coin fixing api add mac add launch gas used ratio ok print element reward workes reward working fix panic value correct remove debugging log tidy up tidy up remove oracle tidy up fix handler crash add unit test tidy up add limit check reformat fix lint fix lint fix lint fix lint Update rpc/ethereum/backend/feebackend.go thanks Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> Update rpc/ethereum/backend/feebackend.go Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> Update rpc/ethereum/backend/feebackend.go thanks Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> Update rpc/ethereum/backend/feebackend.go Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> fix compile error split lines remove temporary string conversion return error if gaslimit is 0 move OneFeeHistory to types add comment only err check Update rpc/ethereum/backend/feebackend.go Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> Update rpc/ethereum/backend/feebackend.go Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> tidy up add feehistory-cap * Apply suggestions from code review * changelog Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> Co-authored-by: Federico Kunze Küllmer <federico.kunze94@gmail.com>
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sorter[i] = txGasAndReward{gasUsed: txGasUsed, reward: reward}
break
}
}
sort.Sort(sorter)
var txIndex int
sumGasUsed := uint64(0)
if len(sorter) > 0 {
sumGasUsed = sorter[0].gasUsed
}
for i, p := range rewardPercentiles {
thresholdGasUsed := uint64(blockGasUsed * p / 100)
for sumGasUsed < thresholdGasUsed && txIndex < tendermintTxCount-1 {
txIndex++
sumGasUsed += sorter[txIndex].gasUsed
}
chosenReward := big.NewInt(0)
if 0 <= txIndex && txIndex < len(sorter) {
chosenReward = sorter[txIndex].reward
}
targetOneFeeHistory.Reward[i] = chosenReward
}
return nil
}
// FeeHistory returns data relevant for fee estimation based on the specified range of blocks.
rpc: `eth_feeHistory` (#734) * Problem: missing json rpc of eth_feeHistory #685 add oracle backend space ready structure ok refactoring return feehistory data flow ok basefee set gas used ratio computing reward add testing add gas used prepare data fill reward increase coin fixing api add mac add launch gas used ratio ok print element reward workes reward working fix panic value correct remove debugging log tidy up tidy up remove oracle tidy up fix handler crash add unit test tidy up add limit check reformat fix lint fix lint fix lint fix lint Update rpc/ethereum/backend/feebackend.go thanks Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> Update rpc/ethereum/backend/feebackend.go Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> Update rpc/ethereum/backend/feebackend.go thanks Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> Update rpc/ethereum/backend/feebackend.go Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> fix compile error split lines remove temporary string conversion return error if gaslimit is 0 move OneFeeHistory to types add comment only err check Update rpc/ethereum/backend/feebackend.go Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> Update rpc/ethereum/backend/feebackend.go Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> tidy up add feehistory-cap * Apply suggestions from code review * changelog Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> Co-authored-by: Federico Kunze Küllmer <federico.kunze94@gmail.com>
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func (e *EVMBackend) FeeHistory(
userBlockCount rpc.DecimalOrHex, // number blocks to fetch, maximum is 100
lastBlock rpc.BlockNumber, // the block to start search , to oldest
rewardPercentiles []float64, // percentiles to fetch reward
) (*rpctypes.FeeHistoryResult, error) {
blockEnd := int64(lastBlock)
if blockEnd <= 0 {
blockNumber, err := e.BlockNumber()
if err != nil {
return nil, err
}
blockEnd = int64(blockNumber)
}
userBlockCountInt := int64(userBlockCount)
maxBlockCount := int64(e.cfg.JSONRPC.FeeHistoryCap)
if userBlockCountInt > maxBlockCount {
return nil, fmt.Errorf("FeeHistory user block count %d higher than %d", userBlockCountInt, maxBlockCount)
}
blockStart := blockEnd - userBlockCountInt
if blockStart < 0 {
blockStart = 0
}
blockCount := blockEnd - blockStart
oldestBlock := (*hexutil.Big)(big.NewInt(blockStart))
// prepare space
reward := make([][]*hexutil.Big, blockCount)
rewardCount := len(rewardPercentiles)
rpc: `eth_feeHistory` (#734) * Problem: missing json rpc of eth_feeHistory #685 add oracle backend space ready structure ok refactoring return feehistory data flow ok basefee set gas used ratio computing reward add testing add gas used prepare data fill reward increase coin fixing api add mac add launch gas used ratio ok print element reward workes reward working fix panic value correct remove debugging log tidy up tidy up remove oracle tidy up fix handler crash add unit test tidy up add limit check reformat fix lint fix lint fix lint fix lint Update rpc/ethereum/backend/feebackend.go thanks Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> Update rpc/ethereum/backend/feebackend.go Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> Update rpc/ethereum/backend/feebackend.go thanks Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> Update rpc/ethereum/backend/feebackend.go Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> fix compile error split lines remove temporary string conversion return error if gaslimit is 0 move OneFeeHistory to types add comment only err check Update rpc/ethereum/backend/feebackend.go Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> Update rpc/ethereum/backend/feebackend.go Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> tidy up add feehistory-cap * Apply suggestions from code review * changelog Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> Co-authored-by: Federico Kunze Küllmer <federico.kunze94@gmail.com>
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for i := 0; i < int(blockCount); i++ {
reward[i] = make([]*hexutil.Big, rewardCount)
rpc: `eth_feeHistory` (#734) * Problem: missing json rpc of eth_feeHistory #685 add oracle backend space ready structure ok refactoring return feehistory data flow ok basefee set gas used ratio computing reward add testing add gas used prepare data fill reward increase coin fixing api add mac add launch gas used ratio ok print element reward workes reward working fix panic value correct remove debugging log tidy up tidy up remove oracle tidy up fix handler crash add unit test tidy up add limit check reformat fix lint fix lint fix lint fix lint Update rpc/ethereum/backend/feebackend.go thanks Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> Update rpc/ethereum/backend/feebackend.go Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> Update rpc/ethereum/backend/feebackend.go thanks Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> Update rpc/ethereum/backend/feebackend.go Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> fix compile error split lines remove temporary string conversion return error if gaslimit is 0 move OneFeeHistory to types add comment only err check Update rpc/ethereum/backend/feebackend.go Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> Update rpc/ethereum/backend/feebackend.go Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> tidy up add feehistory-cap * Apply suggestions from code review * changelog Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> Co-authored-by: Federico Kunze Küllmer <federico.kunze94@gmail.com>
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}
thisBaseFee := make([]*hexutil.Big, blockCount)
thisGasUsedRatio := make([]float64, blockCount)
// rewards should only be calculated if reward percentiles were included
calculateRewards := rewardCount != 0
rpc: `eth_feeHistory` (#734) * Problem: missing json rpc of eth_feeHistory #685 add oracle backend space ready structure ok refactoring return feehistory data flow ok basefee set gas used ratio computing reward add testing add gas used prepare data fill reward increase coin fixing api add mac add launch gas used ratio ok print element reward workes reward working fix panic value correct remove debugging log tidy up tidy up remove oracle tidy up fix handler crash add unit test tidy up add limit check reformat fix lint fix lint fix lint fix lint Update rpc/ethereum/backend/feebackend.go thanks Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> Update rpc/ethereum/backend/feebackend.go Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> Update rpc/ethereum/backend/feebackend.go thanks Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> Update rpc/ethereum/backend/feebackend.go Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> fix compile error split lines remove temporary string conversion return error if gaslimit is 0 move OneFeeHistory to types add comment only err check Update rpc/ethereum/backend/feebackend.go Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> Update rpc/ethereum/backend/feebackend.go Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> tidy up add feehistory-cap * Apply suggestions from code review * changelog Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> Co-authored-by: Federico Kunze Küllmer <federico.kunze94@gmail.com>
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// fetch block
for blockID := blockStart; blockID < blockEnd; blockID++ {
index := int32(blockID - blockStart)
// eth block
ethBlock, err := e.GetBlockByNumber(rpctypes.BlockNumber(blockID), true)
if ethBlock == nil {
return nil, err
}
// tendermint block
tendermintblock, err := e.GetTendermintBlockByNumber(rpctypes.BlockNumber(blockID))
if tendermintblock == nil {
return nil, err
}
// tendermint block result
tendermintBlockResult, err := e.clientCtx.Client.BlockResults(e.ctx, &tendermintblock.Block.Height)
if tendermintBlockResult == nil {
e.logger.Debug("block result not found", "height", tendermintblock.Block.Height, "error", err.Error())
return nil, err
}
oneFeeHistory := rpctypes.OneFeeHistory{}
err = e.processBlock(tendermintblock, &ethBlock, rewardPercentiles, tendermintBlockResult, &oneFeeHistory)
rpc: `eth_feeHistory` (#734) * Problem: missing json rpc of eth_feeHistory #685 add oracle backend space ready structure ok refactoring return feehistory data flow ok basefee set gas used ratio computing reward add testing add gas used prepare data fill reward increase coin fixing api add mac add launch gas used ratio ok print element reward workes reward working fix panic value correct remove debugging log tidy up tidy up remove oracle tidy up fix handler crash add unit test tidy up add limit check reformat fix lint fix lint fix lint fix lint Update rpc/ethereum/backend/feebackend.go thanks Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> Update rpc/ethereum/backend/feebackend.go Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> Update rpc/ethereum/backend/feebackend.go thanks Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> Update rpc/ethereum/backend/feebackend.go Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> fix compile error split lines remove temporary string conversion return error if gaslimit is 0 move OneFeeHistory to types add comment only err check Update rpc/ethereum/backend/feebackend.go Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> Update rpc/ethereum/backend/feebackend.go Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> tidy up add feehistory-cap * Apply suggestions from code review * changelog Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> Co-authored-by: Federico Kunze Küllmer <federico.kunze94@gmail.com>
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if err != nil {
return nil, err
}
// copy
thisBaseFee[index] = (*hexutil.Big)(oneFeeHistory.BaseFee)
thisGasUsedRatio[index] = oneFeeHistory.GasUsedRatio
if calculateRewards {
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))
}
}
rpc: `eth_feeHistory` (#734) * Problem: missing json rpc of eth_feeHistory #685 add oracle backend space ready structure ok refactoring return feehistory data flow ok basefee set gas used ratio computing reward add testing add gas used prepare data fill reward increase coin fixing api add mac add launch gas used ratio ok print element reward workes reward working fix panic value correct remove debugging log tidy up tidy up remove oracle tidy up fix handler crash add unit test tidy up add limit check reformat fix lint fix lint fix lint fix lint Update rpc/ethereum/backend/feebackend.go thanks Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> Update rpc/ethereum/backend/feebackend.go Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> Update rpc/ethereum/backend/feebackend.go thanks Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> Update rpc/ethereum/backend/feebackend.go Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> fix compile error split lines remove temporary string conversion return error if gaslimit is 0 move OneFeeHistory to types add comment only err check Update rpc/ethereum/backend/feebackend.go Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> Update rpc/ethereum/backend/feebackend.go Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> tidy up add feehistory-cap * Apply suggestions from code review * changelog Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> Co-authored-by: Federico Kunze Küllmer <federico.kunze94@gmail.com>
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}
}
feeHistory := rpctypes.FeeHistoryResult{
OldestBlock: oldestBlock,
BaseFee: thisBaseFee,
GasUsedRatio: thisGasUsedRatio,
}
if calculateRewards {
feeHistory.Reward = reward
}
rpc: `eth_feeHistory` (#734) * Problem: missing json rpc of eth_feeHistory #685 add oracle backend space ready structure ok refactoring return feehistory data flow ok basefee set gas used ratio computing reward add testing add gas used prepare data fill reward increase coin fixing api add mac add launch gas used ratio ok print element reward workes reward working fix panic value correct remove debugging log tidy up tidy up remove oracle tidy up fix handler crash add unit test tidy up add limit check reformat fix lint fix lint fix lint fix lint Update rpc/ethereum/backend/feebackend.go thanks Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> Update rpc/ethereum/backend/feebackend.go Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> Update rpc/ethereum/backend/feebackend.go thanks Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> Update rpc/ethereum/backend/feebackend.go Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> fix compile error split lines remove temporary string conversion return error if gaslimit is 0 move OneFeeHistory to types add comment only err check Update rpc/ethereum/backend/feebackend.go Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> Update rpc/ethereum/backend/feebackend.go Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> tidy up add feehistory-cap * Apply suggestions from code review * changelog Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> Co-authored-by: Federico Kunze Küllmer <federico.kunze94@gmail.com>
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return &feeHistory, nil
}