public async Task <bool> ReleaseContract(string name, string abi, string byteCode, int gas)
{
// check contractName
var existing = await this.GetContractFromTableStorage(name);
if (existing != null)
{
throw new Exception($"Contract {name} is present in storage");
}
try
{
var resultUnlocking = await _web3.Personal.UnlockAccount.SendRequestAsync(_accountAddress, _password, 60);
if (resultUnlocking)
{
var transactionHash = await _web3.Eth.DeployContract.SendRequestAsync(abi, byteCode, _accountAddress, new Nethereum.Hex.HexTypes.HexBigInteger(gas), 2);
EthereumContractInfo eci = new EthereumContractInfo(name, abi, byteCode, transactionHash);
return(await SaveContractToTableStorage(eci));
}
}
catch (Exception exc)
{
Console.WriteLine(exc.Message);
return(false);
}
return(false);
}
public async Task <bool> SaveContractToTableStorage(EthereumContractInfo contract)
{
StorageCredentials credentials = new StorageCredentials(_storageAccount, _storageKey);
CloudStorageAccount account = new CloudStorageAccount(credentials, true);
var client = account.CreateCloudTableClient();
var tableRef = client.GetTableReference("ethtransactions");
await tableRef.CreateIfNotExistsAsync();
TableOperation ops = TableOperation.InsertOrMerge(contract);
await tableRef.ExecuteAsync(ops);
return(true);
}
public async Task <IActionResult> ImportContract(IFormFile file)
{
if (file == null || file.Length == 0)
{
ViewData["Message"] = "Not a valid file.";
return(RedirectToAction("Index"));
}
var fileContent = GetFileContents(file);
var contractInfo = new EthereumContractInfo(_contractName, abi, byteCode, file.FileName);
contractInfo.TransactionHash = await _service.ReleaseContract(contractInfo, gas, fileContent);
contractInfo.RowKey = contractInfo.TransactionHash;
await _service.TryGetContractAddress(contractInfo);
await _service.SaveContractInfoToTableStorage(contractInfo);
return(RedirectToAction("Index"));
}
private void SaveContractInfo(EthereumContractInfo contractInfo)
{
}
