public Task <MiningResultDto> RentTimeOnApmMiningServerAsync(string authToken, int requestedAmount)
{
if (!AuthorizeTheToken(authToken))
{
throw new Exception("Failed Authorization");
}
TaskCompletionSource <MiningResultDto> tcs = new TaskCompletionSource <MiningResultDto>();
HttpWebRequest request = (HttpWebRequest)WebRequest.Create($"https://asynccoinfunction.azurewebsites.net/api/asynccoin/{requestedAmount}");
var startTime = DateTime.UtcNow;
request.BeginGetResponse(asyncResult =>
{
try
{
var resultDto = new MiningResultDto();
HttpWebResponse response = (asyncResult.AsyncState as HttpWebRequest).EndGetResponse(asyncResult) as HttpWebResponse;
using (StreamReader httpWebStreamReader = new StreamReader(response.GetResponseStream()))
{
resultDto.MiningText = httpWebStreamReader.ReadToEnd();
}
resultDto.ElapsedSeconds = (DateTime.UtcNow - startTime).TotalSeconds;
tcs.SetResult(resultDto);
}
catch (Exception e)
{
tcs.SetException(e);
}
}, request);
return(tcs.Task);
}
public Task <MiningResultDto> RentTimeOnEapMiningServerAsync(string authToken, int requestedAmount)
{
if (!AuthorizeTheToken(authToken))
{
throw new Exception("Failed Authorization");
}
TaskCompletionSource <MiningResultDto> tcs = new TaskCompletionSource <MiningResultDto>();
var wc = new WebClient();
var startTime = DateTime.UtcNow;
wc.DownloadStringCompleted += (s, e) =>
{
if (e.Error != null)
{
throw new Exception(e.Error.Message);
}
else
{
var resultDto = new MiningResultDto();
resultDto.MiningText = e.Result.ToString();
resultDto.ElapsedSeconds = (DateTime.UtcNow - startTime).TotalSeconds;
tcs.SetResult(resultDto);
}
};
var uri = new Uri($"https://asynccoinfunction.azurewebsites.net/api/asynccoin/{requestedAmount}");
wc.DownloadStringAsync(uri);
return(tcs.Task);
}
public Task <MiningResultDto> RentTimeOnApmMiningServerAsync(string authToken, int requestedAmount)
{
if (!AuthorizeTheToken(authToken))
{
throw new Exception("Failed Authorization");
}
/* This “parent” object to a task encapsulates the code for BeginGetResponse and EndGetResponse.
* Provided everything goes as planned, the Task result is set in tcs.SetResult(resultDto); */
TaskCompletionSource <MiningResultDto> tcs = new TaskCompletionSource <MiningResultDto>();
HttpWebRequest request = (HttpWebRequest)WebRequest.Create($"https://asynccoinfunction.azurewebsites.net/api/asynccoin/{requestedAmount}");
var startTime = DateTime.UtcNow;
// Code structured within a method that creates a Task.
// Took the initiating method BeginGetResponse and then
// passed it a lambda expression that includes the EndGetResponse in its body.
// Now, instead of two methods, you have one.
request.BeginGetResponse(asyncResult =>
{
try
{
var resultDto = new MiningResultDto();
HttpWebResponse response = (asyncResult.AsyncState as HttpWebRequest).EndGetResponse(asyncResult) as HttpWebResponse;
using (StreamReader httpWebStreamReader = new StreamReader(response.GetResponseStream()))
{
resultDto.MiningText = httpWebStreamReader.ReadToEnd();
}
resultDto.ElapsedSeconds = (DateTime.UtcNow - startTime).TotalSeconds;
tcs.SetResult(resultDto);
}
catch (Exception e)
{
tcs.SetException(e);
}
}, request);
return(tcs.Task);
}