WCF A2Z Hands On Lab (HOL) - Tutorial/Lab # 01 (a) - Service
Step 1. Created one Console Project
Step 2. Created one Project in the same Solution IMyFirstService.csproj for declaring/designing Service contact
2.1- Added reference to System.ServiceModel
using System;
using System.Runtime.Serialization;
using System.ServiceModel;
namespace KolkataNETWCFHelloWorld
{
[ServiceContract(Namespace="http://KolkataNET.WCF.HOL")]
public interface IMyFirstService
{
[OperationContract]
string MyFirstMethod();
}
}
2.2 Design Simple Service Contract with one
[ServiceContract(Namespace="http://KolkataNET.WCF.HOL")]
public interface IMyFirstService
2.3 Design Simple Operation [Method/Function] using Attribute [OperationContract] by declaring the method name MyFirstMethod
Step 3. Created one Project in the same Solution MyFirstService.csproj for declaring/designing Service
3.1- Added reference to System.ServiceModel
using System;
using System.Runtime.Serialization;
using System.ServiceModel;
namespace KolkataNETWCFHelloWorld
{
public class MyFirstService : IMyFirstService
{
public string MyFirstMethod()
{
return string.Format("Hello World. Welcome KolkataNET!!!");
}
}
}
3.2 Design Simple Service implementing the above service Contract
public class MyFirstService : IMyFirstService
3.3 Design Simple Operation [Method/Function]
public class MyFirstService : IMyFirstService
{
public string MyFirstMethod()
{
return string.Format("Hello World. Welcome KolkataNET!!!");
}
}
Step 4. Modified the initial main Console Project to Self Host the Service
4.1- Added reference to System.ServiceModel - For hosting the service and exposing MEX - Metadata Exchange of the Service
using System;
using System.Runtime.Serialization;
using System.ServiceModel;
using System.ServiceModel.Description;
namespace KolkataNETWCFHelloWorld
{
class Program
{
static void Main(string[] args)
{
Uri svcBaseAddress = new Uri("http://abu:8080/WCFKolkataNET/HOL");
ServiceHost svcHost = new ServiceHost(typeof(MyFirstService), svcBaseAddress);
svcHost.AddServiceEndpoint(
typeof(IMyFirstService),
new BasicHttpBinding(),
"MyService");
ServiceMetadataBehavior svcMetaBehav = new ServiceMetadataBehavior();
svcMetaBehav.HttpGetEnabled = true;
svcHost.Description.Behaviors.Add(svcMetaBehav);
svcHost.Open();
Console.WriteLine("<ENTER> to stop the service - MyFirstService");
Console.WriteLine();
Console.ReadLine();
svcHost.Close();
}
}
}
4.2 Defining Base Address to host the Service
Uri svcBaseAddress = new Uri("http://abu:8080/WCFKolkataNET/HOL");
ServiceHost svcHost = new ServiceHost(typeof(MyFirstService), svcBaseAddress);
svcHost.AddServiceEndpoint(
typeof(IMyFirstService),
new BasicHttpBinding(),
"MyService");
4.3 Allowing to expose MEX of the Service
ServiceMetadataBehavior svcMetaBehav = new ServiceMetadataBehavior();
svcMetaBehav.HttpGetEnabled = true;
svcHost.Description.Behaviors.Add(svcMetaBehav);
4.3 Running the service until <ENTER> key has been pressed
svcHost.Open();
4.4 Closing the service when <ENTER> key has been pressed
svcHost.Close();
Running the Service - now we will create client to call it