/// <summary>
/// utility function to wait on a transaction to be confirmed using algod v2 API
/// </summary>
/// <param name="instance">The algod api instance using algod v2 API</param>
/// <param name="txID">transaction ID</param>
/// <param name="timeout">how many rounds do you wish to check pending transactions for</param>
/// <returns>The pending transaction response</returns>
public static PendingTransactionResponse WaitTransactionToComplete(V2.AlgodApi instance, string txID, int timeout = 3)
{
if (instance == null || txID == null || txID.Length == 0 || timeout < 0)
{
throw new ArgumentException("Bad arguments for waitForConfirmation.");
}
NodeStatusResponse nodeStatusResponse = instance.GetStatus();
var startRound = nodeStatusResponse.LastRound + 1;
var currentRound = startRound;
while (currentRound < (startRound + timeout))
{
var pendingInfo = instance.PendingTransactionInformation(txID);
if (pendingInfo != null)
{
if (pendingInfo.ConfirmedRound != null && pendingInfo.ConfirmedRound > 0)
{
// Got the completed Transaction
return(pendingInfo);
}
if (pendingInfo.PoolError != null && pendingInfo.PoolError.Length > 0)
{
// If there was a pool error, then the transaction has been rejected!
throw new Exception("The transaction has been rejected with a pool error: " + pendingInfo.PoolError);
}
}
instance.WaitForBlock(currentRound);
currentRound++;
}
throw new Exception("Transaction not confirmed after " + timeout + " rounds!");
}
/// <summary>
/// wait transaction to complete using algod v2 api
/// </summary>
/// <param name="instance"></param>
/// <param name="txID"></param>
/// <returns></returns>
public static string WaitTransactionToComplete(V2.AlgodApi instance, string txID) //throws Exception
{
while (true)
{
//Check the pending tranactions
var b3 = instance.PendingTransactionInformation(txID);
if (b3.ConfirmedRound != null && b3.ConfirmedRound > 0)
{
return("Transaction " + txID + " confirmed in round " + b3.ConfirmedRound);
}
// loops 4 times per second, > 5 times per second will fail using TestNet Purestake Free verison
// also blocks are created in under 5 seconds so no real need to poll constantly -
// a few times per second should be fine
System.Threading.Thread.Sleep(250);
}
}
/// <summary>
/// encode and submit signed transaction using algod v2 api
/// </summary>
/// <param name="instance"></param>
/// <param name="signedTx"></param>
/// <returns></returns>
public static PostTransactionsResponse SubmitTransaction(V2.AlgodApi instance, SignedTransaction signedTx) //throws Exception
{
byte[] encodedTxBytes = Encoder.EncodeToMsgPack(signedTx);
return(instance.RawTransaction(encodedTxBytes));
}
