/// <summary>
/// Utility to send ETH on blockchain signing it by given account
/// </summary>
/// <returns>Receipt of called transaction</returns>
public static async Task <TransactionReceipt> EvaluateOnBC(Web3 web, Profile profile, string to, HexBigInteger amount)
{
Debug.Assert(profile != null);
var nonceService = new InMemoryNonceService(profile.ID, web.Client);
BigInteger nonce = await nonceService.GetNextNonceAsync();
var transaction = new Nethereum.Signer.Transaction(to, amount, nonce);
var rlpEncodedTx = transaction.GetRLPEncodedRaw();
string signature = await profile.SignTransaction(rlpEncodedTx);
transaction.SetSignature(Nethereum.Signer.EthECDSASignatureFactory.ExtractECDSASignature(signature));
var signedTransaction = transaction.GetRLPEncoded().ToHex(true);
string txId = await web.Eth.Transactions.SendRawTransaction.SendRequestAsync(signedTransaction);
TransactionReceipt receipt = await web.Eth.Transactions.GetTransactionReceipt.SendRequestAsync(txId);
while (receipt == null)
{
Thread.Sleep(1000);
receipt = await web.Eth.Transactions.GetTransactionReceipt.SendRequestAsync(txId);
}
return(receipt);
}
/// <summary>
/// Utility to call functions on blockchain signing it by given account
/// </summary>
/// <returns>Receipt of called transaction</returns>
public static async Task <TransactionReceipt> EvaluateOnBC(Web3 web, Profile profile, Function function, params object[] functionInput)
{
Debug.Assert(profile != null);
var gasPrice = await web.Eth.GasPrice.SendRequestAsync();
HexBigInteger gas = await function.EstimateGasAsync(profile.ID, gasPrice, new HexBigInteger(0), functionInput);
var nonceService = new InMemoryNonceService(profile.ID, web.Client);
BigInteger nonce = await nonceService.GetNextNonceAsync();
string data = function.GetData(functionInput);
var transaction = new Nethereum.Signer.Transaction(function.ContractAddress, BigInteger.Zero, nonce, gasPrice, gas.Value, data);
var rlpEncodedTx = transaction.GetRLPEncodedRaw();
string signature = await profile.SignTransaction(rlpEncodedTx);
transaction.SetSignature(Nethereum.Signer.EthECDSASignatureFactory.ExtractECDSASignature(signature));
var signedTransaction = transaction.GetRLPEncoded().ToHex(true);
string txId = await web.Eth.Transactions.SendRawTransaction.SendRequestAsync(signedTransaction).ConfigureAwait(false);
TransactionReceipt receipt = await web.Eth.Transactions.GetTransactionReceipt.SendRequestAsync(txId);
while (receipt == null)
{
Thread.Sleep(1000);
receipt = await web.Eth.Transactions.GetTransactionReceipt.SendRequestAsync(txId);
}
return(receipt);
}
/// <summary>
/// Sends a message to an ethereum smart contract with the intent to change a part of the contract on the blockchain.
/// </summary>
/// <typeparam name="TFunc"> The type of the function to execute. </typeparam>
/// <param name="function"> The function to execute. </param>
/// <param name="privateKey"> The private key of the address executing the contract function. </param>
/// <param name="contractAddress"> The address of the contract which will process the message. </param>
/// <param name="gasPrice"> The gas price (in wei) to use to send the transaction. </param>
/// <param name="gasLimit"> The gas limit (in wei) to use to send the transaction. </param>
/// <param name="value"> The amount of eth (in wei) to send with the transaction. </param>
/// <returns> Task which returns the TransactionPoller which will await the transaction result. </returns>
public static async Task <TransactionPoller> SendContractMessage <TFunc>(
TFunc function,
string privateKey,
string contractAddress,
BigInteger gasPrice,
BigInteger gasLimit,
BigInteger value) where TFunc : FunctionMessage, new()
{
EthECKey ethECKey = new EthECKey(privateKey);
function.SetDefaultFromAddressIfNotSet(ethECKey.GetPublicAddress());
function.Gas = gasLimit;
function.GasPrice = gasPrice;
InMemoryNonceService nonceService = new InMemoryNonceService(ethECKey.GetPublicAddress(), NetworkProvider.GetWeb3().Client);
TransactionSigner signer = new TransactionSigner();
string signedTxData = signer.SignTransaction(
privateKey,
NetworkProvider.GetActiveNetworkChain(),
contractAddress,
value,
(await nonceService.GetNextNonceAsync()).Value,
gasPrice,
gasLimit,
function.CreateTransactionInput(contractAddress).Data);
EthSendRawTransaction rawTransaction = new EthSendRawTransaction(NetworkProvider.GetWeb3().Client);
return(new TransactionPoller(await rawTransaction.SendRequestAsync(signedTxData)));
}
public async void ShouldBeAbleToHandleNoncesOfMultipleTxnMultipleWeb3sMultithreaded()
{
var senderAddress = EthereumClientIntegrationFixture.AccountAddress;
var privateKey = EthereumClientIntegrationFixture.AccountPrivateKey;
var abi =
@"[{""constant"":false,""inputs"":[{""name"":""val"",""type"":""int256""}],""name"":""multiply"",""outputs"":[{""name"":""d"",""type"":""int256""}],""type"":""function""},{""inputs"":[{""name"":""multiplier"",""type"":""int256""}],""type"":""constructor""}]";
var byteCode =
"0x60606040526040516020806052833950608060405251600081905550602b8060276000396000f3606060405260e060020a60003504631df4f1448114601a575b005b600054600435026060908152602090f3";
JsonRpc.Client.RpcClient.ConnectionTimeout = TimeSpan.FromSeconds(30.0);
var multiplier = 7;
var client = _ethereumClientIntegrationFixture.GetClient();
var nonceProvider = new InMemoryNonceService(senderAddress, client);
//tested with 1000
var listTasks = 10;
var taskItems = new List <int>();
for (var i = 0; i < listTasks; i++)
{
taskItems.Add(i);
}
var numProcs = Environment.ProcessorCount;
var concurrencyLevel = numProcs * 2;
var concurrentDictionary = new ConcurrentDictionary <int, string>(concurrencyLevel, listTasks * 2);
Parallel.ForEach(taskItems, (item, state) =>
{
var account = new Account(privateKey, EthereumClientIntegrationFixture.ChainId);
account.NonceService = nonceProvider;
var web3 = new Web3.Web3(account, client);
// Wait for task completion synchronously in order to Parallel.ForEach work correctly
var txn = web3.Eth.DeployContract.SendRequestAsync(abi, byteCode, senderAddress, new HexBigInteger(900000),
null, multiplier).Result;
concurrentDictionary.TryAdd(item, txn);
});
var web31 = new Web3.Web3(new Account(privateKey), client);
var pollService = new TransactionReceiptPollingService(web31.TransactionManager);
for (var i = 0; i < listTasks; i++)
{
string txn = null;
concurrentDictionary.TryGetValue(i, out txn);
var receipt = await pollService.PollForReceiptAsync(txn).ConfigureAwait(false);
Assert.NotNull(receipt);
}
}
/// <summary>
/// Creates transactin passing typed argument
/// </summary>
/// <typeparam name="TFunctionInput"></typeparam>
/// <param name="web"></param>
/// <param name="addressFrom"></param>
/// <param name="amount"></param>
/// <param name="function"></param>
/// <param name="functionInput"></param>
/// <returns></returns>
public static async Task <Nethereum.Signer.Transaction> CreateTransaction <TFunctionInput>(Web3 web, string addressFrom, BigInteger amount, Function <TFunctionInput> function, TFunctionInput functionInput)
{
var gasPrice = await web.Eth.GasPrice.SendRequestAsync();
HexBigInteger gas = await function.EstimateGasAsync(functionInput, addressFrom.EnsureHexPrefix(), gasPrice, new HexBigInteger(amount));
var nonceService = new InMemoryNonceService(addressFrom.EnsureHexPrefix(), web.Client);
BigInteger nonce = await nonceService.GetNextNonceAsync();
string data = function.GetData(functionInput);
var transaction = new Nethereum.Signer.Transaction(function.ContractAddress, amount, nonce, gasPrice, gas.Value, data);
return(transaction);
}
public async void ShouldBeAbleToHandleNoncesOfMultipleTxnMultipleWeb3sMultithreaded()
{
var senderAddress = "0x12890d2cce102216644c59daE5baed380d84830c";
var privateKey = "0xb5b1870957d373ef0eeffecc6e4812c0fd08f554b37b233526acc331bf1544f7";
var abi =
@"[{""constant"":false,""inputs"":[{""name"":""val"",""type"":""int256""}],""name"":""multiply"",""outputs"":[{""name"":""d"",""type"":""int256""}],""type"":""function""},{""inputs"":[{""name"":""multiplier"",""type"":""int256""}],""type"":""constructor""}]";
var byteCode =
"0x60606040526040516020806052833950608060405251600081905550602b8060276000396000f3606060405260e060020a60003504631df4f1448114601a575b005b600054600435026060908152602090f3";
var multiplier = 7;
var client = ClientFactory.GetClient();
var nonceProvider = new InMemoryNonceService(senderAddress, client);
//tested with 1000
var listTasks = 10;
var taskItems = new List <int>();
for (var i = 0; i < listTasks; i++)
{
taskItems.Add(i);
}
var numProcs = Environment.ProcessorCount;
var concurrencyLevel = numProcs * 2;
var concurrentDictionary = new ConcurrentDictionary <int, string>(concurrencyLevel, listTasks * 2);
Parallel.ForEach(taskItems, (item, state) =>
{
var account = new Account(privateKey);
account.NonceService = nonceProvider;
var web3 = new Web3.Web3(account, client);
// Wait for task completion synchronously in order to Parallel.ForEach work correctly
var txn = web3.Eth.DeployContract.SendRequestAsync(abi, byteCode, senderAddress, new HexBigInteger(900000),
null, multiplier).Result;
concurrentDictionary.TryAdd(item, txn);
});
var web31 = new Web3.Web3(new Account(privateKey), client);
var pollService = new TransactionReceiptPollingService(web31.TransactionManager);
for (var i = 0; i < listTasks; i++)
{
string txn = null;
concurrentDictionary.TryGetValue(i, out txn);
var receipt = await pollService.PollForReceiptAsync(txn);
Assert.NotNull(receipt);
}
}
public async void ShouldBeAbleToHandleNoncesOfMultipleTxnMultipleWeb3sSingleThreaded()
{
var senderAddress = EthereumClientIntegrationFixture.AccountAddress;
var privateKey = EthereumClientIntegrationFixture.AccountPrivateKey;
var abi =
@"[{""constant"":false,""inputs"":[{""name"":""val"",""type"":""int256""}],""name"":""multiply"",""outputs"":[{""name"":""d"",""type"":""int256""}],""type"":""function""},{""inputs"":[{""name"":""multiplier"",""type"":""int256""}],""type"":""constructor""}]";
var byteCode =
"0x60606040526040516020806052833950608060405251600081905550602b8060276000396000f3606060405260e060020a60003504631df4f1448114601a575b005b600054600435026060908152602090f3";
var multiplier = 7;
var client = _ethereumClientIntegrationFixture.GetClient();
var nonceProvider = new InMemoryNonceService(senderAddress, client);
var account = new Account(privateKey, EthereumClientIntegrationFixture.ChainId)
{
NonceService = nonceProvider
};
var web31 = new Web3.Web3(account, client);
var txn1 = await
web31.Eth.DeployContract.SendRequestAsync(abi, byteCode, senderAddress, new HexBigInteger(900000), null,
multiplier).ConfigureAwait(false);
var web32 = new Web3.Web3(account, client);
var txn2 = await
web32.Eth.DeployContract.SendRequestAsync(abi, byteCode, senderAddress, new HexBigInteger(900000), null,
multiplier).ConfigureAwait(false);
var web33 = new Web3.Web3(account, client);
var txn3 = await
web33.Eth.DeployContract.SendRequestAsync(abi, byteCode, senderAddress, new HexBigInteger(900000), null,
multiplier).ConfigureAwait(false);
var pollService = new TransactionReceiptPollingService(web31.TransactionManager);
var receipt1 = await pollService.PollForReceiptAsync(txn1).ConfigureAwait(false);
var receipt2 = await pollService.PollForReceiptAsync(txn2).ConfigureAwait(false);
var receipt3 = await pollService.PollForReceiptAsync(txn3).ConfigureAwait(false);
Assert.NotNull(receipt1);
Assert.NotNull(receipt2);
Assert.NotNull(receipt3);
}
public async void ShouldBeAbleToHandleNoncesOfMultipleTxnMultipleWeb3sSingleThreaded()
{
var senderAddress = "0x12890d2cce102216644c59daE5baed380d84830c";
var privateKey = "0xb5b1870957d373ef0eeffecc6e4812c0fd08f554b37b233526acc331bf1544f7";
var abi =
@"[{""constant"":false,""inputs"":[{""name"":""val"",""type"":""int256""}],""name"":""multiply"",""outputs"":[{""name"":""d"",""type"":""int256""}],""type"":""function""},{""inputs"":[{""name"":""multiplier"",""type"":""int256""}],""type"":""constructor""}]";
var byteCode =
"0x60606040526040516020806052833950608060405251600081905550602b8060276000396000f3606060405260e060020a60003504631df4f1448114601a575b005b600054600435026060908152602090f3";
var multiplier = 7;
var client = ClientFactory.GetClient();
var nonceProvider = new InMemoryNonceService(senderAddress, client);
var account = new Account(privateKey)
{
NonceService = nonceProvider
};
var web31 = new Web3.Web3(account, client);
var txn1 = await
web31.Eth.DeployContract.SendRequestAsync(abi, byteCode, senderAddress, new HexBigInteger(900000), null,
multiplier);
var web32 = new Web3.Web3(account, client);
var txn2 = await
web32.Eth.DeployContract.SendRequestAsync(abi, byteCode, senderAddress, new HexBigInteger(900000), null,
multiplier);
var web33 = new Web3.Web3(account, client);
var txn3 = await
web33.Eth.DeployContract.SendRequestAsync(abi, byteCode, senderAddress, new HexBigInteger(900000), null,
multiplier);
var pollService = new TransactionReceiptPollingService(web31.TransactionManager);
var receipt1 = await pollService.PollForReceiptAsync(txn1);
var receipt2 = await pollService.PollForReceiptAsync(txn2);
var receipt3 = await pollService.PollForReceiptAsync(txn3);
Assert.NotNull(receipt1);
Assert.NotNull(receipt2);
Assert.NotNull(receipt3);
}
/// <summary>
/// Creates a trade order for an ERC223 tokens in currency expressed in ERC233 tokens
/// </summary>
/// <param name="from">seller profile</param>
/// <param name="tokenGet">type of currency</param>
/// <param name="amountGet">price in given currency</param>
/// <param name="tokenGive">type of token to sell</param>
/// <param name="amountGive">amount of tokens to sell</param>
/// <param name="blockTimeDuration">expiration time of order in block number</param>
/// <returns>true if order has been created, false otherwise</returns>
public async Task <bool> Order(
Profile from,
string tokenGet,
BigInteger amountGet,
string tokenGive,
BigInteger amountGive,
ulong blockTimeDuration)
{
// FIXME: should NOT take nonce from web3
var nonceService = new InMemoryNonceService(from.ID, web3.Client);
BigInteger nonce = await nonceService.GetNextNonceAsync();
var blockNumber = await web3.Eth.Blocks.GetBlockNumber.SendRequestAsync();
var expires = blockNumber.Value + blockTimeDuration;
var function = GetFunctionOrder();
var receipt = await BCComm.EvaluateOnBC(web3, from, function, tokenGet, amountGet, tokenGive, amountGive, expires, nonce);
return(receipt.Status.Value == 1);
}
/// <summary>
/// Sends a given amount of ether to an address.
/// </summary>
/// <param name="privateKey"> The private key of the address which is sending the ether. </param>
/// <param name="addressTo"> The address the ether is being sent to. </param>
/// <param name="amount"> The amount of ether being sent, in eth. (not wei) </param>
/// <param name="gasPrice"> The gas price (in wei) to use to send the transaction. </param>
/// <param name="gasLimit"> The gas limit (in wei) to use to send the transaction. </param>
/// <returns> Task which returns the TransactionPoller which will await the transaction result. </returns>
public static async Task <TransactionPoller> SendEther(string privateKey, string addressTo, decimal amount, BigInteger gasPrice, BigInteger gasLimit)
{
BigInteger value = SolidityUtils.ConvertToUInt(amount, 18);
EthECKey ethECKey = new EthECKey(privateKey);
InMemoryNonceService nonceService = new InMemoryNonceService(ethECKey.GetPublicAddress(), NetworkProvider.GetWeb3().Client);
TransactionSigner signer = new TransactionSigner();
string signedTxData = signer.SignTransaction(
privateKey,
NetworkProvider.GetActiveNetworkChain(),
addressTo,
value,
(await nonceService.GetNextNonceAsync()).Value,
gasPrice,
gasLimit,
string.Empty);
EthSendRawTransaction rawTransaction = new EthSendRawTransaction(NetworkProvider.GetWeb3().Client);
return(new TransactionPoller(await rawTransaction.SendRequestAsync(signedTxData)));
}
