Binding WCF and JSON

Question

I am trying to create a wcf service that returns json. I have some problems with my configuration file and I also don't know how to test it.

<?xml version="1.0"?> <configuration> <system.web> <compilation debug="false" targetFramework="4.0" /> </system.web> <system.serviceModel> <services> <service name="ContactLibraryJSON.ContactLibrary"> <endpoint address="" binding="webHttpBinding" bindingConfiguration="JSONEndpointBehavior" contract="ContactLibraryJSON.IContactServiceJSON" /> <endpoint address="mex" binding="mexHttpBinding" bindingConfiguration="" contract="IMetadataExchange" /> <host> <baseAddresses> <add baseAddress="http://192.168.1.31/ContactLibraryJSON" /> </baseAddresses> </host> </service> </services> <behaviors> <serviceBehaviors> <behavior name="JSONEndpointBehavior"> <webHttp/> </behavior> <behavior> <!-- To avoid disclosing metadata information, set the value below to false and remove the metadata endpoint above before deployment --> <serviceMetadata httpGetEnabled="true"/> <!-- To receive exception details in faults for debugging purposes, set the value below to true. Set to false before deployment to avoid disclosing exception information --> <serviceDebug includeExceptionDetailInFaults="true"/> </behavior> </serviceBehaviors> </behaviors> <serviceHostingEnvironment multipleSiteBindingsEnabled="true" /> </system.serviceModel> <system.webServer> <modules runAllManagedModulesForAllRequests="true"/> </system.webServer> </configuration> 

I'm still getting

"It is not possible to add a webhttp behavior extension to the JSONEndpointBehavior names service behavior because the main type of behavior is not to implement IServiceBehaviorInterface "

Contact is defined as follows:

 [DataContract(Name="Contact")] public class Contact { [DataMember(Name="FirstName")] public string firstName=null; [DataMember(Name="LastName")] public string lastName=null; [DataMember(Name="Email")] public string email=null; [DataMember(Name = "Age")] public int age = 0; [DataMember(Name = "Street")] public string street=null; [DataMember(Name = "City")] public string city=null; [DataMember(Name = "Country")] public string country=null; } 

IContactService is defined as:

 [ServiceContract] public interface IContactServiceJSON { [OperationContract] [WebGet(BodyStyle = WebMessageBodyStyle.Bare, ResponseFormat = WebMessageFormat.Json, UriTemplate = "")] Contact GetContact(); } 

GetContact implementation:

 public Contact GetContact() { return new Contact() { firstName = "primulNume", lastName = "alDoileaNume", age = 33, city = "Cluj", country = "Romania", email = " [e-mail] ", street = "Bizusa 8" }; } 

My service runs on another computer in my computer. Base address: http://192.168.1.xxx/ContactLibraryService . ContactLibraryService is hosted in IIS and converted to an application.

Answer 1

It is not good that you have an IContact service IContact and contact with Contact data. Rename a service contract, such as IContactService .

 <services> <service name="ContactLibrary.ContactService"> <endpoint address="" binding="webHttpBinding" contract="ContactLibrary.IContactService" behaviorConfiguration="JsonBehavior" /> <host> <baseAddresses> <add baseAddress="http://localhost:8732"/> </baseAddresses> </host> </service> </services> <behaviors> <endpointBehaviors> <behavior name="JsonBehavior"> <webHttp /> </behavior> </endpointBehaviors> </behaviors> 

During debug time (it looks like you have a WCF library), the service address will be http: // localhost: 8732 / contact

Answer 2

You need to add <webHttp/> to the endpoint behavior list. In addition, the endpoint must use webHttpBinding . And finally, to respond to HTTP GET requests, you need to use the WebGet attribute (instead of WebInvoke(Method="GET") .

  <system.serviceModel> <services> <service name="ContactLibrary.ContactLibrary"> <endpoint address="" binding="webHttpBinding" behaviorConfiguration="JSONEndpointBehavior" contract="ContactLibrary.IContact"/> <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" /> <endpoint address="ws" binding="wsHttpBinding" bindingConfiguration="" contract="ContactLibrary.IContact" /> <host> <baseAddresses> <add baseAddress="http://localhost/ContactLibrary" /> </baseAddresses> </host> </service> </services> <behaviors> <endpointBehaviors> <behavior name="JSONEndpointBehavior"> <webHttp/> </behavior> </endpointBehaviors> <serviceBehaviors> <behavior> <!-- To avoid disclosing metadata information, set the value below to false and remove the metadata endpoint above before deployment --> <serviceMetadata httpGetEnabled="true"/> <!-- To receive exception details in faults for debugging purposes, set the value below to true. Set to false before deployment to avoid disclosing exception information --> <serviceDebug includeExceptionDetailInFaults="true"/> </behavior> </serviceBehaviors> </behaviors> </system.serviceModel> 

And a service contract:

 [ServiceContract] public interface IContact { [OperationContract] [WebGet(BodyStyle = WebMessageBodyStyle.Bare, ResponseFormat = WebMessageFormat.Json, UriTemplate = "contact")] Contact GetContact(int idContact); } 

Answer 3

I think you missed the bindings here, you need to add webHttpBinding and basichttpbing under the bindings tab in the system.serviceModel tag.

  <services> <service name="VInfotech.Server.Intranet.IntranetService" behaviorConfiguration="IntranetService.Service1Behavior"> <!-- Service Endpoints --> <endpoint address="" binding="basicHttpBinding" bindingConfiguration="Binding1" contract="VInfotech.Server.Intranet.IIntranet"> <!-- Upon deployment, the following identity element should be removed or replaced to reflect the identity under which the deployed service runs. If removed, WCF will infer an appropriate identity automatically. --> <identity> <dns value="localhost"/> </identity> </endpoint> </service> <service name="VInfotech.Server.Intranet.MobileServicesController" behaviorConfiguration="ServBehave"> <endpoint address="RestService" bindingConfiguration="StreamedRequestWebBinding" binding="webHttpBinding" behaviorConfiguration="restPoxBehavior" contract="VInfotech.Server.Intranet.IMobileServices" /> </service> </services> <bindings> <webHttpBinding> <binding name="StreamedRequestWebBinding" bypassProxyOnLocal="true" useDefaultWebProxy="false" hostNameComparisonMode="WeakWildcard" sendTimeout="10:15:00" openTimeout="10:15:00" receiveTimeout="10:15:00" maxReceivedMessageSize="9223372036854775807" maxBufferPoolSize="9223372036854775807" maxBufferSize="2147483647" transferMode="StreamedRequest" > <readerQuotas maxArrayLength="2147483647" maxStringContentLength="2147483647" /> </binding> </webHttpBinding> <basicHttpBinding> <binding name="Binding1" closeTimeout="04:01:00" openTimeout="04:01:00" receiveTimeout="04:10:00" sendTimeout="04:01:00" allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard" maxBufferSize="1073741824" maxBufferPoolSize="1073741824" maxReceivedMessageSize="1073741824" messageEncoding="Text" textEncoding="utf-8" transferMode="Buffered" useDefaultWebProxy="true"> <readerQuotas maxDepth="1073741824" maxStringContentLength="1073741824" maxArrayLength="1073741824" maxBytesPerRead="1073741824" maxNameTableCharCount="1073741824"/> </binding> <!-- For Cyber Source bindings--> <binding name="ITransactionProcessor" closeTimeout="04:01:00" openTimeout="04:01:00" receiveTimeout="04:10:00" sendTimeout="04:01:00" allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard" maxBufferSize="1073741824" maxBufferPoolSize="1073741824" maxReceivedMessageSize="1073741824" messageEncoding="Text" textEncoding="utf-8" transferMode="Buffered" useDefaultWebProxy="true"> <readerQuotas maxDepth="1073741824" maxStringContentLength="1073741824" maxArrayLength="1073741824" maxBytesPerRead="1073741824" maxNameTableCharCount="1073741824"/> <security mode="TransportWithMessageCredential"> <transport clientCredentialType="None" proxyCredentialType="None" realm=""/> <message clientCredentialType="UserName" algorithmSuite="Default"/> </security> </binding> </basicHttpBinding> <!--Cyber Source bindings ends here--> </bindings>