blockworks-foundation
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solana
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Fetch blockhash for each transaction simulation to avoid stale blockhashes

This commit is contained in:
Michael Vines 2021-01-22 19:11:41 -08:00
parent a44392048d
commit 78c2a9ef52
1 changed files with 4 additions and 9 deletions
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13
stake-o-matic/src/main.rs
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@ -463,16 +463,11 @@ fn simulate_transactions(
rpc_client: &RpcClient,
candidate_transactions: Vec<(Transaction, String)>,
) -> client_error::Result<Vec<(Transaction, String)>> {
let (blockhash, _fee_calculator) = rpc_client.get_recent_blockhash()?;
info!(
"Simulating {} transactions with blockhash {}",
candidate_transactions.len(),
blockhash
);
info!("Simulating {} transactions", candidate_transactions.len(),);
let mut simulated_transactions = vec![];
for (mut transaction, memo) in candidate_transactions {
transaction.message.recent_blockhash = blockhash;
transaction.message.recent_blockhash =
retry_rpc_operation(10, || rpc_client.get_recent_blockhash())?.0;
let sim_result = rpc_client.simulate_transaction_with_config(
&transaction,
@ -511,7 +506,7 @@ fn transact(
);
let (blockhash, fee_calculator, last_valid_slot) = rpc_client
.get_recent_blockhash_with_commitment(CommitmentConfig::max())?
.get_recent_blockhash_with_commitment(rpc_client.commitment())?
.value;
info!("{} transactions to send", transactions.len());