public async Task AddAsset(InboundTransaction transaction)
{
byte[] serializedMutation = await CreateTransaction(transaction);
if (serializedMutation == null)
{
return;
}
await SignAndSubmit(serializedMutation);
}
private async Task <byte[]> CreateTransaction(InboundTransaction transaction)
{
List <Record> records = new List <Record>();
string issuanceAccount = $"/asset/{assetName}/in/{transaction.TransactionHash}/{transaction.OutputIndex}/";
string asset = $"/asset/{assetName}/";
string toAddress = transaction.Address;
HttpClient client = new HttpClient();
ByteString issuanceKey = Encode($"{issuanceAccount}:ACC:{asset}");
HttpResponseMessage getValueResponse = await client.GetAsync(new Uri(tedChainUri, $"record?key={issuanceKey.ToString()}"));
string stringResponse = await getValueResponse.EnsureSuccessStatusCode().Content.ReadAsStringAsync();
ByteString issuanceVersion = ByteString.Parse((string)JObject.Parse(stringResponse)["version"]);
// The transaction has already been submitted
if (issuanceVersion.Value.Count != 0)
{
return(null);
}
ByteString key = Encode($"{toAddress}:ACC:{asset}");
getValueResponse = await client.GetAsync(new Uri(tedChainUri, $"record?key={key.ToString()}"));
JObject toAccount = JObject.Parse(await getValueResponse.EnsureSuccessStatusCode().Content.ReadAsStringAsync());
ByteString version = ByteString.Parse((string)toAccount["version"]);
long currentToBalance = ParseInt(ByteString.Parse((string)toAccount["value"]));
records.Add(new Record(
key: issuanceKey,
value: new ByteString(BitConverter.GetBytes(-transaction.Amount).Reverse().ToArray()),
version: ByteString.Empty));
records.Add(new Record(
key: key,
value: new ByteString(BitConverter.GetBytes(currentToBalance + transaction.Amount).Reverse().ToArray()),
version: version));
Mutation mutation = new Mutation(
Encode(this.tedChainUri.ToString()),
records,
ByteString.Empty);
return(MessageSerializer.SerializeMutation(mutation));
}
public async Task <string> MoveToStorage(InboundTransaction transaction)
{
NBitcoin.Transaction tx = new TransactionBuilder()
.AddKeys(ReceivingKey)
.AddCoins(new Coin(
uint256.Parse(transaction.TransactionHash),
(uint)transaction.OutputIndex,
transaction.Amount,
ReceivingKey.ScriptPubKey))
.Send(storageKey.ScriptPubKey, transaction.Amount - defaultFees)
.SendFees(defaultFees)
.BuildTransaction(true);
string result = await SubmitTransaction(new ByteString(tx.ToBytes()));
return(result);
}
