Problem in implementing ODATA update using SAP UI5

Question

Hi,
  I am trying to develop an hwc mobile app [hwc] using sapui5 and phonegap. I am trying to perform odata crud operations in the app.
In the netweaver side, currently we have disabled the setting for X-CSRF token so that CUD operations are possible even without CSRF token. I am using datajs library for consumption of the odata services in my app. My read operation is successful and i am able to display the data in my app. But I am facing problems in the update operation.
In order to ensure that serverside is perfect, I used the WFetch tool to perform the update operation and verified that data got updated successfully in SAP backend { i got 204 response from server ]. In the wfetch tool, the headers and body section was like this
x-requested-with: XMLHttpRequest\r\n
\r\n
<?xml version="1.0" encoding="utf-8" standalone="yes"?>\r\n
  <entry xmlns:d="http://schemas.microsoft.com/ado/2007/08/dataservices" xmlns:m="http://schemas.microsoft.com/ado/2007/08/dataservices/metadata" xmlns="http://www.w3.org/2005/Atom">\r\n
      <content type="application/xml">\r\n
        <m:properties>\r\n
          <d:value>0203_IN120</d:value> \r\n
          <d:scheme_id>Z_BANK_RFC_GANESH</d:scheme_id> \r\n
          <d:scheme_agency_id>LOCAL</d:scheme_agency_id> \r\n
          <d:post_bank /> \r\n
          <d:bank_branch>BANASWADI</d:bank_branch> \r\n
          <d:street>123 MARUTHI SEVA NAGAR.</d:street> \r\n
          <d:city>BANGALORE</d:city> \r\n
          <d:swift_code/>\r\n
          <d:region>KA</d:region> \r\n
          <d:bank_name>HSBC</d:bank_name> \r\n
          <d:pobk_curac /> \r\n
          <d:bank_group /> \r\n
          <d:addr_no /> \r\n
        </m:properties>\r\n
      </content>\r\n
</entry>\r\n
The response i got was like this
WWWConnect::Connect("XXXXX.XXXX.com","8000")\nIP = "10.6.13.146:8000"\nsource port: 50054\r\n
REQUEST: **************\nPUT /sap/opu/sdata/sap/ZBANKRFCGANESH/z_bank_rfc_ganeshCollection(value='0203_IN120',scheme_id='Z_BANK_RFC_GANESH',scheme_agency_id='LOCAL')/?$format=xml HTTP/1.1\r\n
x-requested-with: XMLHttpRequest\r\n
Host: i3lbwvids.itcinfotech.com\r\n
Accept: */*\r\n
Content-Length:884\r\n
Authorization: Basic Z2FuZXNoOmxvZ2luQDEyMzQ=\r\n
\r\n
<?xml version="1.0" encoding="utf-8" standalone="yes"?>\r\n
  <entry xmlns:d="http://schemas.microsoft.com/ado/2007/08/dataservices" xmlns:m="http://schemas.microsoft.com/ado/2007/08/dataservices/metadata" xmlns="http://www.w3.org/2005/Atom">\r\n
      <content type="application/xml">\r\n
        <m:properties>\r\n
          <d:value>0203_IN120</d:value> \r\n
          <d:scheme_id>Z_BANK_RFC_GANESH</d:scheme_id> \r\n
          <d:scheme_agency_id>LOCAL</d:scheme_agency_id> \r\n
          <d:post_bank /> \r\n
          <d:bank_branch>BANASWADI</d:bank_branch> \r\n
          <d:street>123 MARUTHI SEVA NAGAR.</d:street> \r\n
          <d:city>BANGALORE</d:city> \r\n
          <d:swift_code/>\r\n
          <d:region>KA</d:region> \r\n
          <d:bank_name>HSBC</d:bank_name> \r\n
          <d:pobk_curac /> \r\n
          <d:bank_group /> \r\n
          <d:addr_no /> \r\n
        </m:properties>\r\n
      </content>\r\n
</entry>\r\n
RESPONSE: **************\nHTTP/1.1 204 No Content\r\n
set-cookie: MYSAPSSO2=AjQxMDMBABhHAEEATgBFAFMASAAgACAAIAAgACAAIAACAAY4ADAAMAADABBJAEQAUwAgACAAIAAgACAABAAYMgAwADEANAAwADEAMgA5ADAANwAyADUABQAEAAAACAYAAlgACQACRQD%2fAPowgfcGCSqGSIb3DQEHAqCB6TCB5gIBATELMAkGBSsOAwIaBQAwCwYJKoZIhvcNAQcBMYHGMIHDAgEBMBkwDjEMMAoGA1UEAxMDSURTAgcgEQQGCClRMAkGBSsOAwIaBQCgXTAYBgkqhkiG9w0BCQMxCwYJKoZIhvcNAQcBMBwGCSqGSIb3DQEJBTEPFw0xNDAxMjkwNzI1MzlaMCMGCSqGSIb3DQEJBDEWBBRF%2fqnZ6znAGOYDuA1QJxZ7kOYTfDAJBgcqhkjOOAQDBC4wLAIUNk9rqGV16RPsLrLsHfHtNPc%21Q44CFBRiJ4BhRrmxUVH77EYIGSSd8WPb; path=/; domain=.itcinfotech.com\r\n
content-length: 0\r\n
dataserviceversion: 2.0\r\n
x-sap-odata-extension-version: 0.9;gp=0.8\r\n
server: SAP NetWeaver Application Server / ABAP 702\r\n
\r\n
Now i tried to do that using sapui5 code.
OData.request(
                   requestUri: "http://XXXXX.XXXXX.com:8000/sap/opu/sdata/sap/ZBANKRFCGANESH/z_bank_rfc_ganeshCollection(value='0203_IN120',scheme_id='Z_BANK_RFC_GANESH',scheme_agency_id='LOCAL')/?$format=xml",
                   method: "PUT",
                   headers: { "X-Requested-With": "XMLHttpRequest", "sap-user" : "ganesh", "sap-password" : "login@1234",  "Content-Type": "application/atom+xml" },
                   data: {
                           "value" : "0203_IN120",
                           "scheme_id" : "Z_BANK_RFC_GANESH",
                           "scheme_agency_id" : "LOCAL",
                           "post_bank" : "",
                           "bank_branch" : "Park Street",
                           "street" : "Russel Street",
                           "city" : "KOLKATA",
                           "swift_code" : "",
                           "region" : "WB",
                           "bank_name" : "HSBC",
                           "pobk_curac" : "",
                           "bank_group" : "",
                           "addr_no" : ""
                 function (data, response){ 
                   // var header_xcsrf_token = response.headers['x-csrf-token']; 
                  //  alert(header_xcsrf_token);
                    //  alert("hello");
                      //alert(data);
                     alert(JSON.stringify(response, null, 4));
                 function (err) {
                    alert(err.message);
  I found the I am always getting a 200 OK in the respose and not 204 [ when i displayed the response using the alert message]. As expected data is also not getting updated.
Kindly guide me where i am going wrong in the code. Please help me out.
thanks and regards,
krishna.

Answer 1

Hi Krishna
I will try and help.
The first thing i notice is you are using OData.request, this is not part of SAPUI5, OData is a global introduced by the datajs thirdparty plugin, I would recommend not using it directly, instead use the ODataModel API start by reading the Class sap.ui.model.odata.ODataModel and ODataModel.  There are a lot of good of reasons for using the ODataModel, like databinding, event handling, it doesn't smell like a leak, besides the SAPUI5 ODataModel is a lot easier to use.
try something like this
var url = 'http://XXXXX.XXXXX.com:8000/sap/opu/sdata/sap/ZBANKRFCGANESH';
var bJSON = true; //use JSON
var sUser = 'ganesh';
var sPassword = 'login@1234';
// create a model for OData service call
var oModel = new sap.ui.model.odata.ODataModel(url, true, sUser, sPassword);
sap.ui.getCore().setModel(oModel);
var path = '/z_bank_rfc_ganeshCollection(value='0203_IN120',scheme_id='Z_BANK_RFC_GANESH',scheme_agency_id='LOCAL')';
// create the data
var data =  {
    "value": "0203_IN120",
    "scheme_id": "Z_BANK_RFC_GANESH",
    "scheme_agency_id": "LOCAL",
    "post_bank": "",
    "bank_branch": "Park Street",
    "street": "Russel Street",
    "city": "KOLKATA",
    "swift_code": "",
    "region": "WB",
    "bank_name": "HSBC",
    "pobk_curac": "",
    "bank_group": "",
    "addr_no": ""
// get a CSRF token if needed
oModel.refreshSecurityToken();
// add own callback code
var oParams, fnSuccess, fnError, bUseMERGE;
//PUT data back to server
oModel.update(path, data, oParams, fnSuccess, fnError, bUseMERGE);
Let us know how you get on
hth
jsp
Message was edited by: John Patterson
I really dislike the SCN editor, especially the way it re formats code so it cannot be read while writing