Async call never returns - multithreading

Question

please have a look at below code.
public static class DbModel
{
public static readonly int TableID = 0;
static DbModel()
{
DbModel.PodID = FetchTableID().PodID;
}
public static Pod FetchTableID()
{
Pod result = null;
try
{
//Control never comes back from this line. What am I missing?
var searchResult = apiPod.SearchTableAsync(1).Result;
result = searchResult.First();
}
catch (Exception ex)
{
Helpers.TraceException(PageName,"FEtchPodID","Unable to fetch PodID",ex);
}
return result;
}
}
Signature of SearchTableAsync looks like this
public async Task<List<Pod>> SearchTableAsync(int i)
{
try
{
using (var client = new HttpClient())
{
//deleted - connecting to server, constructing query string etc.
var response = await client.GetAsync(ApiBaseUrl + "api/Pod/Search" + queryString);
if (response.IsSuccessStatusCode)
{
var podList = await response.Content.ReadAsAsync<List<Pod>>();
return podList;
}
else
{
//log error
}
}
}
catch (Exception ex)
{
Logger.TraceError(null, ex);
}
return null;
}
Call to SearchTableAsync never returns back. Am I missing anything? Or its because I am invoking this from Static constructor?

Answer 1

The problem is likely due to the use of Task.Result property. this is a blocking property and can cause a deadlock. You can simply await the task which will return the result, but you need to make the method async.
public static async Pod FetchTableID()
{
Pod result = null;
try
{
var searchResult = await apiPod.SearchTableAsync(1);
result = searchResult.First();
}
catch (Exception ex)
{
Helpers.TraceException(PageName,"FEtchPodID","Unable to fetch PodID",ex);
}
return result;
}

Answer 2

searchResult = apiPod.SearchTableAsync(1).excute.get;
use this instead of
var searchResult = apiPod.SearchTableAsync(1).Result;

Answer 3

This post explains why it was blocking.
Cheers,
Hemant