public async Task <Result <BigInteger> > GetNonceAsync(
Atomex.EthereumConfig ethereum,
string address,
bool pending = true,
CancellationToken cancellationToken = default)
{
var transactionCountResult = await((IEthereumBlockchainApi)ethereum.BlockchainApi)
.GetTransactionCountAsync(address, pending, cancellationToken)
.ConfigureAwait(false);
if (transactionCountResult.HasError)
{
return(transactionCountResult);
}
var nonceFromNetwork = transactionCountResult.Value;
lock (_offlineNonces)
{
var currentNonce = _offlineNonces.TryGetValue(address, out var offlineNonce) &&
offlineNonce.Nonce > nonceFromNetwork &&
DateTimeOffset.UtcNow - offlineNonce.LastUpdated < TimeSpan.FromMinutes(5)
? offlineNonce.Nonce
: nonceFromNetwork;
_offlineNonces[address] = new NonceEntry
{
Nonce = currentNonce + 1,
LastUpdated = DateTimeOffset.UtcNow
};
return(currentNonce);
}
}
public async Task <Result <BigInteger> > GetNonceAsync(
Atomex.Ethereum ethereum,
string address,
CancellationToken cancellationToken = default)
{
var transactionCountResult = await((IEthereumBlockchainApi)ethereum.BlockchainApi)
.GetTransactionCountAsync(address, cancellationToken)
.ConfigureAwait(false);
if (transactionCountResult.HasError)
{
return(transactionCountResult);
}
var nonce = transactionCountResult.Value;
lock (_syncRoot)
{
if (_nonces.TryGetValue(address, out var offlineNonce))
{
if (offlineNonce.Value >= nonce &&
DateTime.UtcNow - offlineNonce.LastUpdatedTimeUtc <= ExpirationTimeOut)
{
return(offlineNonce.Value++);
}
_nonces[address] = new NonceEntry
{
Value = nonce + 1,
LastUpdatedTimeUtc = DateTime.UtcNow
};
return(nonce);
}
_nonces.Add(address, new NonceEntry
{
Value = nonce + 1,
LastUpdatedTimeUtc = DateTime.UtcNow
});
return(nonce);
}
}
public async Task <BigInteger> GetNonce(Atomix.Ethereum ethereum, string address)
{
var nonce = await((IEthereumBlockchainApi)ethereum.BlockchainApi)
.GetTransactionCountAsync(address)
.ConfigureAwait(false);
lock (_syncRoot)
{
if (_nonces.TryGetValue(address, out var offlineNonce))
{
if (offlineNonce.Value >= nonce &&
DateTime.UtcNow - offlineNonce.LastUpdatedTimeUtc <= ExpirationTimeOut)
{
return(offlineNonce.Value++);
}
else
{
_nonces[address] = new NonceEntry
{
Value = nonce + 1,
LastUpdatedTimeUtc = DateTime.UtcNow
};
return(nonce);
}
}
else
{
_nonces.Add(address, new NonceEntry
{
Value = nonce + 1,
LastUpdatedTimeUtc = DateTime.UtcNow
});
return(nonce);
}
}
}
