public async Task <List <DltBlock> > GetRecentBlocks(int numberOfBlocks)
{
ulong blockCount = (ulong)numberOfBlocks;
var web3 = new Nethereum.Geth.Web3Geth();
ulong startBlockNumber = 0;
ulong endBlockNumber = startBlockNumber + blockCount;
var maxBlockNumber = await this.GetLatestBlockNumber();
startBlockNumber = maxBlockNumber < blockCount ? 1 : maxBlockNumber - blockCount;
endBlockNumber = maxBlockNumber;
List <DltBlock> dltBlocks = new List <DltBlock>();
Dictionary <string, SmartContractTransaction> databaseDataDict = new Dictionary <string, SmartContractTransaction>();
List <string> transactionHashesList = new List <string>();
for (ulong blockNumber = startBlockNumber; blockNumber <= endBlockNumber; blockNumber++)
{
var blockParameter = new BlockParameter(blockNumber);
var blockEth = await web3.Eth.Blocks.GetBlockWithTransactionsByNumber.SendRequestAsync(blockParameter);
var trans = blockEth.Transactions;
int txCount = trans.Length;
DltBlock block = null;
DateTime blockDatetime = Helper.UnixTimeStampToDateTime((double)blockEth.Timestamp.Value);
block = new DltBlock
{
BlockNumber = blockNumber,
TransactionCount = txCount,
BlockDatetime = blockDatetime,
BlockHash = blockEth.BlockHash,
Difficulty = (ulong)blockEth.Difficulty.Value,
GasLimit = (ulong)blockEth.GasLimit.Value,
GasUsed = (ulong)blockEth.GasUsed.Value,
Size = (ulong)blockEth.Size.Value
};
if (block.TransactionCount > 0)
{
block.DltTransactions = new List <DltBlockTransaction>();
foreach (var transaction in blockEth.Transactions)
{
DltBlockTransaction dltTransaction = new DltBlockTransaction()
{
From = transaction.From,
To = transaction.To,
Gas = (ulong)transaction.Gas.Value,
GasPrice = (ulong)transaction.GasPrice.Value,
Nonce = (ulong)transaction.Nonce.Value,
Value = (ulong)transaction.Value.Value,
TransactionHash = transaction.TransactionHash
};
block.DltTransactions.Add(dltTransaction);
transactionHashesList.Add(transaction.TransactionHash);
}
}
dltBlocks.Add(block);
}
dltBlocks = await AddDatabaseDataToDltBlock(dltBlocks, transactionHashesList);
return(dltBlocks.OrderByDescending(block => block.BlockNumber).ToList());
}
private async Task <ulong> GetLatestBlockNumber()
{
var web3 = new Nethereum.Geth.Web3Geth();
var maxBlockNumber = await web3.Eth.Blocks.GetBlockNumber.SendRequestAsync();
ulong blockNumber = 0;
ulong.TryParse(maxBlockNumber.Value.ToString(), out blockNumber);
return(blockNumber);
}
public async Task <IActionResult> PostDataInBlocks([FromBody] DataModel dataModel, [FromQuery] string uniqueKey)
{
GenericResponse <DataModel> response = new GenericResponse <DataModel>();
if (!ModelState.IsValid)
{
return(BadRequest(ModelState));
}
var userModel = getPrivateKey(uniqueKey);
if (userModel != null)
{
var account = new Account(userModel.PrimaryKey);
var web3 = new Nethereum.Geth.Web3Geth(account, "https://ropsten.infura.io/v3/1e1358ffb3db40f69b7bdb6c51d016b6");
BlockChainController blockChainController = new BlockChainController(web3, account);
try
{
var reciept = await blockChainController.SetContractData(dataModel, uniqueKey);
if (reciept.Item1 != null)
{
response.HasError = false;
response.Messege = "Sucessfull";
response.Result = dataModel;
response.StatusCode = 200;
}
else
{
response.HasError = true;
response.Messege = "unsucessfull";
response.Result = null;
response.StatusCode = 400;
}
}
catch (Exception e)
{
response.Messege = e.ToString();
}
}
else
{
response.HasError = true;
response.Messege = "user does not exist";
response.Result = null;
response.StatusCode = 400;
}
return(Ok(response));
}
/// <summary>
/// Start a miner and get back the result. Not needed in a live environment, but we're in testrpc now
/// </summary>
/// <param name="web3"></param>
/// <param name="transactionHash"></param>
/// <returns></returns>
private static Nethereum.RPC.Eth.DTOs.TransactionReceipt MineAndGetReceipt(Nethereum.Web3.Web3 web3, string transactionHash)
{
var web3Geth = new Nethereum.Geth.Web3Geth();
var miningResult = web3Geth.Miner.Start.SendRequestAsync(6).Result;
var receipt = web3.Eth.Transactions.GetTransactionReceipt.SendRequestAsync(transactionHash).Result;
while (receipt == null)
{
Thread.Sleep(1000);
receipt = web3.Eth.Transactions.GetTransactionReceipt.SendRequestAsync(transactionHash).Result;
}
miningResult = web3Geth.Miner.Stop.SendRequestAsync().Result;
return(receipt);
}
async Task <string> SendTransactionToContract(params object[] values)
{
Web3 web3 = new Nethereum.Geth.Web3Geth(new Account(_privateKey), _providerUrl);
var transactionHash = await web3.Eth.GetContract(_abi, _contractAddress).GetFunction(_functionName)
.SendTransactionAsync(_address, new HexBigInteger(BigInteger.Parse(_defaultGas)),
new HexBigInteger(BigInteger.Parse(_messageValue)), values);
var receipt = await web3.Eth.Transactions.GetTransactionReceipt.SendRequestAsync(transactionHash);
while (receipt == null)
{
Thread.Sleep(1000);
receipt = await web3.Eth.Transactions.GetTransactionReceipt.SendRequestAsync(transactionHash);
}
return(receipt.TransactionHash);
}
public async Task <IActionResult> GetWalletTransaction(string uniqueKey)
{
GenericResponse <List <TransactionModel> > response = new GenericResponse <List <TransactionModel> >();
if (!ModelState.IsValid)
{
return(BadRequest(ModelState));
}
var credential = getPrivateKey(uniqueKey);
if (credential != null)
{
var account = new Account(credential.PrimaryKey);
var web3 = new Nethereum.Geth.Web3Geth(account, "https://ropsten.infura.io/v3/1e1358ffb3db40f69b7bdb6c51d016b6");
BlockChainController blockChainController = new BlockChainController(web3, account);
try
{
var transactionList = await blockChainController.GetTransaction(account.Address);
response.HasError = false;
response.Messege = "successfull";
response.Result = transactionList;
response.StatusCode = 200;
}
catch (Exception e)
{
response.HasError = true;
response.Messege = e.ToString();
response.Result = null;
response.StatusCode = 400;
}
}
else
{
response.HasError = true;
response.Messege = "User does not exist";
response.Result = null;
response.StatusCode = 400;
}
return(Ok(response));
}
// Send balance request using Web3, note that Web3 uses Task and await
private async Task GetBalanceByWeb3(string address, UnityAction <decimal> callback)
{
Debug.Log("StaticWalletBalance:GetBalanceByWeb3()");
// Create a Web3 object using Nethereum lib
var web3 = new Nethereum.Web3.Web3(WalletSettings.current.networkUrl);
// Use GetBalance request
var balance = await web3.Eth.GetBalance.SendRequestAsync(address);
Debug.Log("StaticWalletBalance:GetBalanceByWeb3 - balance returned");
var web3geth = new Nethereum.Geth.Web3Geth(WalletSettings.current.networkUrl);
var result = await web3geth.Miner.Start.SendRequestAsync();
Debug.Log(result);
callback(Nethereum.Util.UnitConversion.Convert.FromWei(balance, 18));
}
static async Task RecordTransaction(string deviceId, string recordData)
{
try
{
Console.WriteLine("Submitting transaction to Blockchain...");
//var rpcEndpoint = Environment.GetEnvironmentVariable("RPCENDPOINT");
var rpcEndpoint = "http://40.118.229.191:8545";
//var abi = @"[{'constant':true,'inputs':[],'name':'getState','outputs':[{'name':'state','type':'uint8'}],'payable':false,'stateMutability':'view','type':'function'},{'constant':false,'inputs':[{'name':'deviceIdentifier','type':'string'},{'name':'data','type':'string'}],'name':'record','outputs':[{'name':'success','type':'bool'}],'payable':false,'stateMutability':'nonpayable','type':'function'},{'constant':false,'inputs':[{'name':'data','type':'string'}],'name':'settle','outputs':[{'name':'success','type':'bool'}],'payable':false,'stateMutability':'nonpayable','type':'function'},{'constant':false,'inputs':[{'name':'data','type':'string'}],'name':'verify','outputs':[{'name':'success','type':'bool'}],'payable':false,'stateMutability':'nonpayable','type':'function'}]";
//var binary = "0x" + "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";
var abi = @"[{'constant':true,'inputs':[],'name':'getState','outputs':[{'name':'state','type':'uint8'}],'payable':false,'stateMutability':'view','type':'function'},{'constant':false,'inputs':[{'name':'data','type':'string'}],'name':'settle','outputs':[{'name':'success','type':'bool'}],'payable':false,'stateMutability':'nonpayable','type':'function'},{'constant':false,'inputs':[{'name':'data','type':'string'}],'name':'verify','outputs':[{'name':'success','type':'bool'}],'payable':false,'stateMutability':'nonpayable','type':'function'},{'inputs':[{'name':'deviceIdentifier','type':'string'},{'name':'data','type':'string'}],'payable':false,'stateMutability':'nonpayable','type':'constructor'}]";
var binary = "0x" + "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";
//Console.WriteLine($"Connecting to {rpcEndpoint}");
var tempWeb3 = new Nethereum.Geth.Web3Geth(rpcEndpoint);
var senderAddress = "0x7edc35c275db44bd58eb958d7a1cdee2095439ca"; //await tempWeb3.Eth.CoinBase.SendRequestAsync();
Console.WriteLine($"Sender Address => {senderAddress}");
var account = new ManagedAccount(senderAddress, "password");
var web3 = new Nethereum.Geth.Web3Geth(account, rpcEndpoint);
var transactionHash = await web3.Eth.DeployContract.SendRequestAsync(abi, binary, senderAddress, new HexBigInteger(900000), null, null, deviceId, recordData);
Console.WriteLine($"Added Blockchain contract transaction => {transactionHash}");
/*var receipt = await web3.Eth.Transactions.GetTransactionReceipt.SendRequestAsync(transactionHash);
* var contractAddress = receipt.ContractAddress;
* Console.WriteLine($"Contract Address => {contractAddress}");
* var contract = web3.Eth.GetContract(abi, contractAddress);
* var recordFunction = contract.GetFunction("record");
* var getStateFunction = contract.GetFunction("getState");
*
* transactionHash = await recordFunction.SendTransactionAsync(
* senderAddress, new HexBigInteger(900000), null, deviceId, recordData);
* Console.WriteLine($"[Record] Transaction Hash => {transactionHash}");
* receipt = await web3.Eth.Transactions.GetTransactionReceipt.SendRequestAsync(transactionHash);
*
* var result = await getStateFunction.CallAsync<int>();
* Console.WriteLine($"Added Blockchain transaction => {result}");*/
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
}
public async Task <DltBlock> GetLatestBlock()
{
var web3 = new Nethereum.Geth.Web3Geth();
ulong blockNumber = await this.GetLatestBlockNumber();
var blockParameter = new BlockParameter(blockNumber);
var blockEth = await web3.Eth.Blocks.GetBlockWithTransactionsByNumber.SendRequestAsync(blockParameter);
var trans = blockEth.Transactions;
int txCount = trans.Length;
DltBlock block = null;
DateTime blockDatetime = Helper.UnixTimeStampToDateTime((double)blockEth.Timestamp.Value);
block = new DltBlock
{
BlockNumber = blockNumber,
TransactionCount = txCount,
BlockDatetime = blockDatetime,
BlockHash = blockEth.BlockHash,
Difficulty = (ulong)blockEth.Difficulty.Value,
GasLimit = (ulong)blockEth.GasLimit.Value,
GasUsed = (ulong)blockEth.GasUsed.Value,
Size = (ulong)blockEth.Size.Value
};
if (block.TransactionCount > 0)
{
block.DltTransactions = new List <DltBlockTransaction>();
foreach (var transaction in blockEth.Transactions)
{
DltBlockTransaction dltTransaction = new DltBlockTransaction()
{
From = transaction.From,
To = transaction.To,
Gas = (ulong)transaction.Gas.Value,
GasPrice = (ulong)transaction.GasPrice.Value,
Nonce = (ulong)transaction.Nonce.Value,
Value = (ulong)transaction.Value.Value,
TransactionHash = transaction.TransactionHash
};
block.DltTransactions.Add(dltTransaction);
}
}
return(block);
}