WCF - Multiple Processes - wcf

Question

I have an wcf SERVICE that get a request of branch code and return 5 products list values.
In server side, each product process takes about 6 sec to be completed, so if I run synchronous it will take 30 seconds. I altered my server code and run them in parallel. It works fine, but it seems that each parallel process get threads from IIS threadspool.
Now I am thinking to run asynchronous each product processes and when all will be finished then return the whole list of products to client. It will be grateful if you help me about that..
How can I run asynchronous these processes in server side ? No matter if client run sync or async. That what I need is to run async product processes in order to serve the results faster.

Answer 1

Try this asynchronous approach with generics type:
namespace InterNameSpace
{
[ServiceContract]
public interface ITestClass
{
[OperationContract]
Task<AnyComplexType> xpto(string baseUrl, string getAsyncUrl);
}
}
namespace Test
{
ServiceBehaviorAttribute(InstanceContextMode = InstanceContextMode.PerSession)]
public class TestClass : ITestClass
{
public async Task<AnyComplexType> xpto(string baseUrl, string getAsyncUrl)
{
try
{
return await TestAux.Auxiliar.RetrieveDeserializeObject<AnyComplexType>(baseUrl, getAsyncUrl);
}
catch (Exception)
{
return null;
}
}
}
}
Create a Product complex-type, pass it to your call method. In this method use the keyword async and task to call the deserialized method as asynchronous.
Your deserialized method recieve the baseurl and the controller route. As a genetic type you can pass different complex-type and deserialaze this object and return it.
namespace TestAux
{
public class Auxiliar
{
public static async Task<T> RetrieveDeserializeObject<T>(string baseUrl, string getAsyncUrl) where T : class
{
try
{
T deserializeObject = null;
HttpClient httpClient = new HttpClient();
httpClient.BaseAddress = new Uri(baseUrl);
httpClient.DefaultRequestHeaders.Accept.Clear();
httpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
var response = await httpClient.GetAsync(getAsyncUrl);
//throw an exception if not successful
if (response.EnsureSuccessStatusCode().IsSuccessStatusCode)
{
string content = await response.Content.ReadAsStringAsync();
// DeserializeObject our concrete class into a JSON String
deserializeObject = await Task.Run(() => JsonConvert.DeserializeObject<T>(content));
}
return deserializeObject;
}
catch (Exception)
{
return null;
}
}
}
}