Mohamed Ahmed Mohamed Ahmed - 3 months ago 23
C# Question

WCF service not opening in the browser?

I'm learning WCF, I started creating a very basic host app which defines a class with one method as follows:

[ServiceContract()]
public interface IMath
{
[OperationContract]
int Add(int a, int b);
}
public class MathCalcs : IMath
{
public MathCalcs()
{
Console.WriteLine("Service await two numbers...");
}
public int Add(int a, int b)
{
return a + b;
}
}


and that is how I configured the App.config file:

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<system.serviceModel>
<services>
<service name="ConsoleHost.MathCalcs" behaviorConfiguration="MathServiceMEXBehavior">
<endpoint address="http://localhost:8080/MathCalcs"
binding="basicHttpBinding"
contract="ConsoleHost.IMath"/>
<endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>
<host>
<baseAddresses>
<add baseAddress="http://localhost:8080/MathCalcs"/>
</baseAddresses>
</host>
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior name="MathServiceMEXBehavior">
<serviceMetadata httpGetEnabled="true"/>
</behavior>
</serviceBehaviors>
</behaviors>
</system.serviceModel>
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6.1" />
</startup>
</configuration>


Then I called the service from
Main


using (ServiceHost host = new ServiceHost(typeof(MathCalcs)))
{
host.Open();
Console.WriteLine("***The service is ready***");
}
Console.ReadLine();


But it fails to view the metadata of the service through the URI http://localhost:8080/MathCalcs, I'm sure I'm following the steps right as the book I'm reading from and as a preceding example works fine, the only difference is that I didn't separate the service logic (the interface and the class) in a stand alone class library.
What am I missing?

Answer

The following line of code

Console.ReadLine();

must be inside the braces of the using clause! When that is done, retry finding the WSDL metadata.

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