/// <inheritdoc />
public void WatchNFTContract(string contractAddress)
{
int watchFromHeight = this.network.IsTest() ? 3000000 : 3400000;
if (!this.NFTContractCollection.Exists(x => x.ContractAddress == contractAddress))
{
NFTContractModel model = new NFTContractModel()
{
ContractAddress = contractAddress,
LastUpdatedBlock = watchFromHeight,
OwnedIDsByAddress = new Dictionary <string, List <long> >()
};
this.NFTContractCollection.Upsert(model);
}
}
private async Task IndexNFTsContinuouslyAsync()
{
await Task.Delay(1);
try
{
while (!this.cancellation.Token.IsCancellationRequested)
{
List <string> contracts = this.NFTContractCollection.FindAll().Select(x => x.ContractAddress).ToList();
foreach (string contractAddr in contracts)
{
if (this.cancellation.Token.IsCancellationRequested)
{
break;
}
NFTContractModel currentContract = this.NFTContractCollection.FindOne(x => x.ContractAddress == contractAddr);
ChainedHeader chainTip = this.chainIndexer.Tip;
List <ReceiptResponse> receipts = this.smartContractTransactionService.ReceiptSearch(
contractAddr, "TransferLog", null, currentContract.LastUpdatedBlock + 1, null);
if ((receipts == null) || (receipts.Count == 0))
{
currentContract.LastUpdatedBlock = chainTip.Height;
this.NFTContractCollection.Upsert(currentContract);
continue;
}
int lastReceiptHeight = 0;
if (receipts.Any())
{
lastReceiptHeight = (int)receipts.Last().BlockNumber.Value;
}
currentContract.LastUpdatedBlock = new List <int>()
{
chainTip.Height, lastReceiptHeight
}.Max();
List <TransferLog> transferLogs = new List <TransferLog>(receipts.Count);
foreach (ReceiptResponse receiptRes in receipts)
{
LogData log = receiptRes.Logs.First().Log;
string jsonLog = JsonConvert.SerializeObject(log);
TransferLogRoot infoObj = JsonConvert.DeserializeObject <TransferLogRoot>(jsonLog);
transferLogs.Add(infoObj.Data);
}
foreach (TransferLog transferInfo in transferLogs)
{
if ((transferInfo.From != null) && currentContract.OwnedIDsByAddress.ContainsKey(transferInfo.From))
{
currentContract.OwnedIDsByAddress[transferInfo.From].Remove(transferInfo.TokenId);
if (currentContract.OwnedIDsByAddress[transferInfo.From].Count == 0)
{
currentContract.OwnedIDsByAddress.Remove(transferInfo.From);
}
}
if (!currentContract.OwnedIDsByAddress.ContainsKey(transferInfo.To))
{
currentContract.OwnedIDsByAddress.Add(transferInfo.To, new List <long>());
}
currentContract.OwnedIDsByAddress[transferInfo.To].Add(transferInfo.TokenId);
}
this.NFTContractCollection.Upsert(currentContract);
}
try
{
await Task.Delay(TimeSpan.FromSeconds(3), this.cancellation.Token);
}
catch (TaskCanceledException)
{
}
}
}
catch (Exception e)
{
this.logger.LogError(e.ToString());
}
}
public NFTContractModel GetAllNFTOwnersByContractAddress(string contractAddress)
{
NFTContractModel currentContract = this.NFTContractCollection.FindOne(x => x.ContractAddress == contractAddress);
return(currentContract);
}