Function reth_rpc_eth_types::simulate::resolve_transactions

pub fn resolve_transactions<DB: Database>(
    txs: &mut [TransactionRequest],
    validation: bool,
    block_gas_limit: u128,
    chain_id: u64,
    db: &mut DB,
) -> Result<Vec<TransactionSigned>, EthApiError>
where
    EthApiError: From<DB::Error>,

Goes over the list of [TransactionRequest]s and populates missing fields trying to resolve them into TransactionSigned.

If validation is enabled, the function will return error if any of the transactions can’t be built right away.