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Use previous block hash to compute tx effectiveGasPrice #1280

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merged 2 commits into from
Jan 16, 2024
Merged

Use previous block hash to compute tx effectiveGasPrice #1280

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1e34f95
Use previous block hash to compute tx effectiveGasPrice
elfedy Jan 8, 2024
e9150e7
Fall back to current block for base_fee when tx is on genesis
elfedy Jan 16, 2024
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30 changes: 21 additions & 9 deletions client/rpc/src/eth/transaction.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -213,7 +213,6 @@ where
block,
receipts,
statuses,
substrate_hash,
..
} = block_info.clone();
match (block, statuses, receipts) {
Expand Down Expand Up @@ -287,14 +286,27 @@ where
let effective_gas_price = match transaction {
EthereumTransaction::Legacy(t) => t.gas_price,
EthereumTransaction::EIP2930(t) => t.gas_price,
EthereumTransaction::EIP1559(t) => self
.client
.runtime_api()
.gas_price(substrate_hash)
.unwrap_or_default()
.checked_add(t.max_priority_fee_per_gas)
.unwrap_or_else(U256::max_value)
.min(t.max_fee_per_gas),
EthereumTransaction::EIP1559(t) => {
let parent_eth_hash = block.header.parent_hash;
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If parent_hash is 0x0 then it indicates genesis block, and then we should short-circuit.

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modified to use same block hash for the genesis block

let parent_substrate_hash = frontier_backend_client::load_hash::<B, C>(
self.client.as_ref(),
self.backend.as_ref(),
parent_eth_hash,
)
.await
.map_err(|err| internal_err(format!("{:?}", err)))?
.ok_or(internal_err(
"Failed to retrieve substrate parent block hash",
))?;

self.client
.runtime_api()
.gas_price(parent_substrate_hash)
.unwrap_or_default()
.checked_add(t.max_priority_fee_per_gas)
.unwrap_or_else(U256::max_value)
.min(t.max_fee_per_gas)
}
};

return Ok(Some(Receipt {
Expand Down
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