Using OData, will see an example to retrieve Security Roles of Logged In User.

Task: Retrieve Logged In User Security Roles on Onload of Contact Entity

Solution:

Step 1: Include Json2 web resource in the Contact Entity.

If you don’t have this file, download Latest SDK and go to below path and create,

\CRM SDK\SDK\SampleCode\JS\RESTEndpoint\JavaScriptRESTDataOperations\JavaScriptRESTDataOperations\Scripts

Step 2: Create new JavaScript web resource (Ex: new_contact) and include the below script,

function getLoggedInUserRoles() {
var Id = Xrm.Page.context.getUserId();
retrieveMultiple("SystemUserSet", "?$select=systemuserroles_association/Name&$expand=systemuserroles_association&$filter=SystemUserId eq (guid'" + Id + "')", getSecurityRoleNames, null, null);
}

function retrieveMultiple(odataSetName, filter, successCallback, errorCallback, _executionObj) {
var context = Xrm.Page.context;
var serverUrl = context.getServerUrl();
var ODATA_ENDPOINT = "/XRMServices/2011/OrganizationData.svc";

//odataSetName is required, i.e. "AccountSet"
if (!odataSetName) {
alert("odataSetName is required.");
return;
}

//Build the URI
var odataUri = serverUrl + ODATA_ENDPOINT + "/" + odataSetName;

 //If a filter is supplied, append it to the OData URI
if (filter) {
odataUri += filter;
}

//Asynchronous AJAX function to Retrieve CRM records using OData
$.ajax({
type: "GET",
async: true,
contentType: "application/json; charset=utf-8",
datatype: "json",
url: odataUri,
beforeSend: function(XMLHttpRequest) {
//Specifying this header ensures that the results will be returned as JSON.
XMLHttpRequest.setRequestHeader("Accept", "application/json");
},
success: function(data, textStatus, XmlHttpRequest) {
if (successCallback) {
if (data && data.d && data.d.results) {
successCallback(data.d.results, textStatus, XmlHttpRequest);
} else if (data && data.d) {
successCallback(data.d, textStatus, XmlHttpRequest);
} else {
successCallback(data, textStatus, XmlHttpRequest);
}
}
},
error: function(XmlHttpRequest, textStatus, errorThrown) {
if (errorCallback)
errorCallback(XmlHttpRequest, textStatus, errorThrown);
else
errorHandler(XmlHttpRequest, textStatus, errorThrown);
}
});
}

function errorHandler(xmlHttpRequest, textStatus, errorThrow) {
alert("Error : " + textStatus + ": " + xmlHttpRequest.statusText);
}

function getSecurityRoleNames(data, textStatus, XmlHttpRequest) {
var totalCount = data[0].systemuserroles_association.results.length;
var userString = null;
if (totalCount > 0) {
userString = "User Role : ";
for (var i = 0; i < totalCount; i++)
userString = userString + data[0].systemuserroles_association.results[i].Name + "\n";
alert(userString);
} else
alert("No Role Associated with LoggedIn User");
}

Step 3: Add new_contact Jscript web resource in the Contact Entity. Add getLoggedInUsersRoles function on Onload of Contact.

Step 4: Click on Ok. Save and Publish Contact Entity.

Step 5: Open any Contact record and see the below Popup.

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