javascript - WCF data service not responding with json, only xml -

i trying consume data service function jquery ajax call, i've tried many ways of calling it, , setting service contract , data service, no matter keeps giving me xml. have heard people need use jsonp, necessary?

 [servicecontract]  public interface iservice1  {      [operationcontract]     [webinvoke(method = "post", bodystyle = webmessagebodystyle.wrappedrequest, responseformat = webmessageformat.json)]     string getdata(int value);      [operationcontract]     compositetype getdatausingdatacontract(compositetype composite);      // todo: add service operations here }   // use data contract illustrated in sample below add composite types service operations. [datacontract] public class compositetype {     bool boolvalue = true;     string stringvalue = "hello ";      [datamember]     public bool boolvalue     {         { return boolvalue; }         set { boolvalue = value; }     }      [datamember]     public string stringvalue     {         { return stringvalue; }         set { stringvalue = value; }     } } 

this data service class

 public class myservice : dataservice<myentities> {     private readonly myentities _datasource;      public myservice() : this(new myentities()) { }      // im doing di since testing service operations local db     public myservice(myentities datasource)     {         _datasource = datasource;     }      protected override myentities createdatasource()     {         return _datasource;     }      // method called once initialize service-wide policies.     public static void initializeservice(dataserviceconfiguration config)     {         config.setentitysetaccessrule("teams", entitysetrights.allread);         config.dataservicebehavior.maxprotocolversion = dataserviceprotocolversion.v3;     } 

}

and jquery ajax. alerts error, , when inspect errors in console, json parse error because getting xml.

var url = "http://localhost:2884/myservice.svc/teams"; $.ajax({     type: "get",     url: url,     contenttype: 'application/json; charset=utf-8',     accept: 'application/json',     datatype: 'json',     success: function (msg) {         alert(msg.d);     },     error: function(xhr, ajaxoptions, thrownerror) {                 alert("error : " + xhr + ajaxoptions + thrownerror);             } }); 

if stuck @ point in wcf data services, easy assume getting started, was.

my solution problem, move away wcf, , web api (microsoft seems doing same) reference: http://www.codeproject.com/articles/341414/wcf-or-asp-net-web-apis-my-two-cents-on-the-subjec

plus how simpler things are, , able working within few minutes.

public class teamscontroller : apicontroller {     team[] teams; // defined whatever persistant means u want. ie. entity framework.      public ienumerable<team> getallteams()     {         return teams;     } } 

then js

 $.getjson("api/teams/",         function (data) {             alert(data);         }); 

yep better :d used tutorial http://www.asp.net/web-api/overview/getting-started-with-aspnet-web-api/tutorial-your-first-web-api