public HttpResponseMessage PostStudent(Student student)
        {
            var context = new Context();

            context.Students.Add(student);
            context.SaveChanges();

            return this.Request.CreateResponse(HttpStatusCode.Created);
        }
 public HttpResponseMessage GetStudents()
 {
     var context = new Context();
     return this.Request.CreateResponse(HttpStatusCode.OK, context.Students.AsQueryable());
 }