Unable to post xml odata by using sapui5

How to send xml data to post odata using sapui5 , I am trying to send data to server using x-csrf token and data in the form of xml.. If I try to send it in json format it is being submitted but since the server is not accepting I should only submit xml

OData.request
            ({ 
                //posting data
                 requestUri: "proxy/http/server:8000/sap/opu/odata/sap/ZCUST_TESTING_SRV/post_cust", 
                       method: "PUT", 

                       headers: {   
                           "X-Requested-With": "XMLHttpRequest",  
                           "Content-Type": "application/xml",  
                           "DataServiceVersion": "2.0",           
                           "X-CSRF-Token":header_xcsrf_token  
                                },//xml data
                 data :  "<?xml version='1.0' encoding='utf-8'?>"+
                 "<entry xml:base='http://server:8000/sap/opu/odata/sap/ZCUST_TESTING_SRV/'" +
                 "xmlns='http://ift.tt/r5ut6F' "+
            "xmlns:m='http://ift.tt/1dtZymv'"+
                 "xmlns:d='http://ift.tt/1cVQIMf'>"+
                 "<content type='application/xml'>"+
                 "<m:properties>"+
                 "<d:Kunnr>56567676</d:Kunnr>"+
                 "<d:Land1>144</d:Land1>"+
                 "<d:Name1>john</d:Name1>"+
                 "<d:Name2>SAMPLE </d:Name2>"+
                 "<d:Ort01>johnexpo</d:Ort01>"+
                 "<d:Pstlz>X</d:Pstlz>"+
                 "<d:EStatus>X</d:EStatus>"+
                 "</m:properties>"+
                 "</content>"+
                 "</entry>"               
            });
            alert("posted");
                 }
  );

Is it the way to send data. I am able to send as json but Is there anyway to send in the form of xml