/// <summary>
/// Broadcast a ledger to blockchain network.
/// </summary>
/// <param name="record">A ledger to broadcast.</param>
/// <param name="waitForConfirm">Wait for ledger to store in a blockchain (Optional, default is true)</param>
/// <returns>None. Transaction ID will be attached to the ledger object instead.</returns>
public async Task BroadcastLedger(Ledger record, bool waitForConfirm = true)
{
var hexData = record.GetOP_RETURN();
var transaction = await api.BuildTransaction(userPrivateKey, record.UtxoReceiver, record.TokenReceiver, hexData);
var tx = await api.BroadcastTransaction(transaction);
record.TxId = tx.txid;
if (waitForConfirm)
{
var currentTx = new ApiTransaction();
while (currentTx.blocktime == 0)
{
currentTx = await api.GetTransactionInfo(tx.txid);
record.Blockheight = currentTx.blockheight;
Thread.Sleep(3000);
}
record.Status = ProcessStatus.NotProcessed;
record.TokenSenderHash = userPrivateKey.PubKeyHash.ToBytes();
ledger.Upsert(record);
ledger.EnsureIndex(l => l.TxId);
ledger.EnsureIndex(l => l.Blockheight);
ledger.EnsureIndex(l => l.Operation);
ledger.EnsureIndex(l => l.TokenSenderHash);
ledger.EnsureIndex(l => l.TokenReceiverHash);
ledger.EnsureIndex(l => l.Time);
}
else
{
record.Status = ProcessStatus.NotDefined;
}
}
/// <summary>
/// Publish a wallet contract to blockchain and save the published to local data store.
/// </summary>
/// <param name="newContract">A to-be-published wallet contract.</param>
/// <param name="creator">Private key of the creator</param>
/// <returns>Return transaction ID if published. Throw exception if there is an error.</returns>
public async Task <string> PublishContract(WalletContract newContract, BitcoinSecret creator)
{
try
{
ValidateContract(newContract);
}
catch (Exception)
{
throw;
}
var Data = $"{DomainHex}{newContract.NameHex}{newContract.TokenHex}{BitConverterExtension.GetHexBytes(newContract.TotalSupply)}" +
$"{newContract.NoOfDecimal.ToString("x4")}{newContract.Conditions.ByteArrayToString()}";
var transaction = await insightAPI.BuildTransaction(creator, creator.GetAddress(), creator.GetAddress(), Data.ToLower());
var txId = await insightAPI.BroadcastTransaction(transaction);
newContract.ID = txId.txid;
var status = await insightAPI.GetSync();
newContract.StartingBlock = status.blockChainHeight;
newContract.LastSyncedBlock = status.blockChainHeight;
UpdateContract(newContract, true);
return(newContract.ID);
}
/// <summary> /// Broadcast transaction to blockchain. /// </summary> /// <param name="transaction">Signed NBitcoin-compatible transaction</param> /// <returns>TransactionID of the published transaction.</returns> public Task <TxID> BroadCastTransaction(Transaction transaction) => api.BroadcastTransaction(transaction);