public Product AddProduct(HttpRequestMessage reqMessage, Product newProduct)
 {
     return new Product { Id = newProduct.Id, Name = newProduct.Name, Description = "From v2: " + newProduct.Description, Upc = newProduct.Upc };
 }
 public Product AddProduct(HttpRequestMessage reqMessage, Product newProduct)
 {
     return new Product { Id = 1, Name = "Widget", Description = "From v1", Upc = "123456654321" };
 }