[DataContract]    public class Car    {        [DataMember]        public string color { get; set; }        [DataMember]        public double speed { get; set; }        [DataMember]        public double price { get; set; }    }    public partial class Cars    {        public static readonly Cars _instance = new Cars();        private Cars() { }        public static Cars Instance        {            get { return _instance; }        }        public List<Car> CarList        {            get { return carLists; }        }        private List<Car> carLists = new List<Car>        {            new Car { color = "red", speed = 200, price = 200 },            new Car{color = "blue", speed = 200, price = 200},            new Car{color="green",speed=300,price=400}        };    }

<?xml version="1.0"?><configuration>  <appSettings>    <add key="aspnet:UseTaskFriendlySynchronizationContext" value="http://www.mamicode.com/true" />  </appSettings>  <system.web>    <compilation debug="true" targetFramework="4.5" />    <httpRuntime targetFramework="4.5"/>  </system.web>  <system.serviceModel>    <services>        <service name="MyRESTService.ProductRESTService" behaviorConfiguration="serviceBehavior">            <endpoint address=""                      binding="webHttpBinding"                      contract="MyRESTService.IProductRESTService"                      behaviorConfiguration="web"></endpoint>          </service>   </services>    <behaviors>      <serviceBehaviors>        <behavior name="serviceBehavior">                  <serviceMetadata httpGetEnabled="true"/>                  <serviceDebug includeExceptionDetailInFaults="false"/>        </behavior>              </serviceBehaviors>      <endpointBehaviors>          <behavior name="web">                <webHttp/>            </behavior>      </endpointBehaviors>    </behaviors>    <protocolMapping>        <add binding="basicHttpsBinding" scheme="https" />    </protocolMapping>        <serviceHostingEnvironment multipleSiteBindingsEnabled="true" />  </system.serviceModel>  <system.webServer>    <modules runAllManagedModulesForAllRequests="true"/>    <!--        To browse web app root directory during debugging, set the value below to true.        Set to false before deployment to avoid disclosing web app folder information.      -->    <directoryBrowse enabled="true"/>  </system.webServer></configuration>