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WCF REST pt 1 service

Create a RESTful WCF Service 

1. Open Visual Studio, click File > New > Project  

2. Select WCF Service Library template under Visual C# > WCF templates

3. Change the name to StudentServiceLibrary and click OK




4. Visual studio will add reference to System.ServiceModel, System.Runtime.Serialization and will add some files with sample code. 

5. Delete IService1.cs and Service1.cs














6. Add reference to System.ServiceModel.Web






7. Add a new class called StudentService








Adding Data Contract 

8. Open StudentService.cs file that you created and add the following code

using System.Runtime.Serialization;
using System.ServiceModel;
using System.ServiceModel.Web;

9. Add the following code in the StudentService.cs class
namespace StudentServiceLibrary
{
    [DataContract]
    public class Student
    {
        [DataMember]
        public string StuId { get; set; }
        [DataMember]
        public string FirstName { get; set; }
        [DataMember]
        public string LastName { get; set; }
        [DataMember]
        public string Email { get; set; }
    }

    class StudentService
    {
    }
}

Adding Service Contract

10. Add the following code in the StudentService.cs class

    [ServiceContract]
    public interface IStudentService
    {
        [WebInvoke(Method = "POST", UriTemplate = "student")]
        [OperationContract]
        void AddStudent(Student pr);

        [WebGet(UriTemplate = "students")]
        [OperationContract]
        IEnumerable<Student> ListAllStudent();

        [WebGet(UriTemplate = "students/{stuId}")]
        [OperationContract]
        Student GetStudentById(string stuId);

    }

Service Implementation

11. Add the following code in the ProductService.cs class
    [ServiceBehavior(InstanceContextMode = InstanceContextMode.Single)]
    public class StudentService : IStudentService
    {
        Dictionary<string, Student> Students = new Dictionary<string, Student>();

        public void AddStudent(Student stu)
        {
            Students.Add(stu.StuId, stu);
        }

        public IEnumerable<Student> ListAllStudent()
        {
            return Students.Values;
        }

        public Student GetStudentById(string stuId)
        {
            return Students[stuId];
        }

    }

Service endpoints 

12. Updated the name of the service in App.config as shown below:

Test Service 

13. Run the Service. 

Further Reading


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