Odata query not supporting $filter $stop $expand

Question

Hi everyone,
I am just trying to  call a odata query to uodate a attribute
 I get this error:The status always return me 400.Please Help
  responseText "{Query options $expand, $filter, $orderby, $inlinecount, $skip and $top cannot be applied to the requested resource.}" String
Here ia a part of my code:
//my odata request
  var oDataPath = ServerUrl + "/XRMServices/2011/OrganizationData.svc";
    var oData = oDataPath + "/AppointmentSet?$select=Category&$filter=ActivityId eq guid'" + appointmentid + "'";
 var req = new XMLHttpRequest();
                   req.open("POST", encodeURI(oData), false);
                    req.setRequestHeader("Accept", "application/json");
                    req.setRequestHeader("Content-Type", "application/json; charset=utf-8");
                    req.setRequestHeader("X-HTTP-Method", "MERGE");
                    req.onreadystatechange = function () {
                        if (this.readyState == 4 /* complete */) {
                            req.onreadystatechange = null;
                            if (this.status == 204 || this.status == 1223) {
                                successCallback();
                            else {
                                debugger;
                               errorCallback(SDK.REST._errorHandler(this));
Thanks
Surbhi

Answer 1

Hi, 
   Use below code to resolve your error
function Retrieve() {
                    var oDataPath = ServerUrl + "/XRMServices/2011/OrganizationData.svc";
                 var oData = oDataPath + "/AppointmentSet?$select=Category&$filter=ActivityId eq guid'" + appointmentid
+ "'";
var retrieveReq =
new XMLHttpRequest();
//alert(Odata);
        retrieveReq.open("GET",
oData,
false);
        retrieveReq.setRequestHeader("Accept",
"application/json");
        retrieveReq.setRequestHeader("Content-Type",
"application/json; charset=utf-8");
        retrieveReq.onreadystatechange =
function () { retrieveReqCallBack(this);
        retrieveReq.send();
function retrieveReqCallBack(retrieveReq) {
    if (retrieveReq.readyState == 4
/* complete */) {
var retrieved =
this.parent.JSON.parse(retrieveReq.responseText).d;
var category= retrieved.results[0].Category;