public async Task <Transaction> GetTransactionFromNodeAsync(string transactionHash)
{
var body = new Models.Node.JsonRpcBody("eth_getTransactionByHash", 1);
body.AddParam(transactionHash);
var client = new RestClient(GetNodeUrl());
var request = new RestRequest(Method.POST);
request.AddParameter("application/json; charset=utf-8", Newtonsoft.Json.JsonConvert.SerializeObject(body), ParameterType.RequestBody);
request.RequestFormat = DataFormat.Json;
var cancellationTokenSource = new CancellationTokenSource();
var restResponse = await client.ExecuteTaskAsync(request, cancellationTokenSource.Token);
if (restResponse.StatusCode == HttpStatusCode.OK)
{
var response = Newtonsoft.Json.JsonConvert.DeserializeObject <Models.Node.GetTransactionResponse>(restResponse.Content);
return(response.result != null?ConversionService.Convert(response.result) : null);
}
else
{
if (string.IsNullOrEmpty(restResponse.Content))
{
throw new Exception($"Error posting to node: {restResponse.ErrorException}");
}
else
{
throw new Exception($"Error posting to node: {restResponse.Content}");
}
}
}
public async Task <Models.DTOs.Block> GetBlockFromNodeAsync(ulong blockNumber)
{
var body = new Models.Node.JsonRpcBody("eth_getBlockByNumber", 1);
body.AddParam(blockNumber.ToHexString());
body.AddParam(true);
var client = new RestClient(GetNodeUrl());
var request = new RestRequest(Method.POST);
request.AddParameter("application/json; charset=utf-8", JsonConvert.SerializeObject(body), ParameterType.RequestBody);
request.RequestFormat = DataFormat.Json;
var cancellationTokenSource = new CancellationTokenSource();
var restResponse = await client.ExecuteTaskAsync(request, cancellationTokenSource.Token);
if (restResponse.StatusCode == HttpStatusCode.OK)
{
var response = JsonConvert.DeserializeObject <Models.Node.GetBlockResponse>(restResponse.Content);
return(ConversionService.Convert(response.result));
}
else
{
if (string.IsNullOrEmpty(restResponse.Content))
{
throw new Exception($"Error posting to node: {restResponse.ErrorException}");
}
else
{
throw new Exception($"Error posting to node: {restResponse.Content}");
}
}
}
public async Task <List <Transaction> > GetPendingTransactionsFromNodeAsync()
{
var body = new Models.Node.JsonRpcBody("eth_getBlockByNumber", 1);
body.AddParam("pending");
body.AddParam(true);
var client = new RestClient(GetNodeUrl());
var request = new RestRequest(Method.POST);
request.AddParameter("application/json; charset=utf-8", Newtonsoft.Json.JsonConvert.SerializeObject(body), ParameterType.RequestBody);
request.RequestFormat = DataFormat.Json;
var cancellationTokenSource = new CancellationTokenSource();
var restResponse = await client.ExecuteTaskAsync(request, cancellationTokenSource.Token);
if (restResponse.StatusCode == HttpStatusCode.OK)
{
var response = Newtonsoft.Json.JsonConvert.DeserializeObject <Models.Node.GetBlockResponse>(restResponse.Content);
var transactions = new List <Transaction>();
if (response.result != null)
{
foreach (var transaction in response.result.transactions)
{
transactions.Add(ConversionService.Convert(transaction));
}
}
return(transactions);
}
else
{
if (string.IsNullOrEmpty(restResponse.Content))
{
throw new Exception($"Error posting to node: {restResponse.ErrorException}");
}
else
{
throw new Exception($"Error posting to node: {restResponse.Content}");
}
}
}