public IEnumerator SuggestFee(BigInteger?maxPriorityFeePerGas = null)
{
yield return(_ethGetBlockWithTransactionsHashes.SendRequest(BlockParameter.CreateLatest()));
if (_ethGetBlockWithTransactionsHashes.Exception == null)
{
var lastBlock = _ethGetBlockWithTransactionsHashes.Result;
if (lastBlock.BaseFeePerGas == null)
{
this.Result = MedianPriorityFeeHistorySuggestionStrategy.FallbackFeeSuggestion;
yield break;
}
else
{
var baseFee = lastBlock.BaseFeePerGas;
if (maxPriorityFeePerGas == null)
{
BigInteger?estimatedPriorityFee;
if (baseFee.Value < MedianPriorityFeeHistorySuggestionStrategy.PRIORITY_FEE_ESTIMATION_TRIGGER)
{
estimatedPriorityFee = MedianPriorityFeeHistorySuggestionStrategy.DefaultPriorityFee;
}
else
{
yield return(_ethFeeHistory.SendRequest(new HexBigInteger(MedianPriorityFeeHistorySuggestionStrategy.FeeHistoryNumberOfBlocks), new BlockParameter(lastBlock.Number), new double[] {
MedianPriorityFeeHistorySuggestionStrategy.FEE_HISTORY_PERCENTILE
}));
if (_ethFeeHistory.Exception != null)
{
this.Exception = _ethFeeHistory.Exception;
yield break;
}
else
{
estimatedPriorityFee = _medianPriorityFeeHistorySuggestionStrategy.EstimatePriorityFee(_ethFeeHistory.Result);
}
}
if (estimatedPriorityFee == null)
{
this.Result = MedianPriorityFeeHistorySuggestionStrategy.FallbackFeeSuggestion;
yield break;
}
maxPriorityFeePerGas = BigInteger.Max(estimatedPriorityFee.Value, MedianPriorityFeeHistorySuggestionStrategy.DefaultPriorityFee);
}
this.Result = _medianPriorityFeeHistorySuggestionStrategy.SuggestMaxFeeUsingMultiplier(maxPriorityFeePerGas, baseFee);
yield break;
}
}
else
{
this.Exception = _ethGetBlockWithTransactionsHashes.Exception;
yield break;
}
}
public IEnumerator SuggestTip(BigInteger firstBlock, decimal[] gasUsedRatio)
{
var ptr = gasUsedRatio.Length - 1;
var needBlocks = 5;
var rewards = new List <BigInteger>();
while (needBlocks > 0 && ptr >= 0)
{
var blockCount = _timePreferenceFeeSuggestionStrategy.MaxBlockCount(gasUsedRatio, ptr, needBlocks);
if (blockCount > 0)
{
// feeHistory API call with reward percentile specified is expensive and therefore is only requested for a few non-full recent blocks.
yield return(_ethFeeHistory.SendRequest(blockCount.ToHexBigInteger(), new BlockParameter(new HexBigInteger(firstBlock + ptr)), new double[] { 0 }));
if (_ethFeeHistory.Exception == null)
{
for (var i = 0; i < _ethFeeHistory.Result.Reward.Length; i++)
{
rewards.Add(_ethFeeHistory.Result.Reward[i][0]);
}
if (_ethFeeHistory.Result.Reward.Length < blockCount)
{
break;
}
}
else
{
this.Exception = _ethFeeHistory.Exception;
yield break;
}
needBlocks -= blockCount;
}
ptr -= blockCount + 1;
}
if (rewards.Count == 0)
{
this.Result = FallbackTip;
}
else
{
rewards.Sort();
this.Result = rewards[(int)Math.Truncate((double)(rewards.Count / 2))];
}
}