javascript - ReferenceError: item is not defined in Azure insert script -

i using following code in insert perform push notifications. todoitem table contains imageurl , channel table has channl uris. reference code here-http://azure.microsoft.com/en-us/documentation/articles/mobile-services-windows-store-dotnet-get-started-push-vs2012/

the following code insert script in todoitem table

var azure = require('azure');  var qs = require('querystring');  var appsettings = require('mobileservice-config').appsettings;    function insert(item, user, request) {      // storage account settings app settings.      var accountname = appsettings.storage_account_name;      var accountkey = appsettings.storage_account_access_key;      var host = accountname + '.blob.core.windows.net';        if ((typeof item.containername !== "undefined") && (          item.containername !== null)) {          // set blob store container name on item, must lowercase.          item.containername = item.containername.tolowercase();            // if not exist, create container          // public read access blobs.                 var blobservice = azure.createblobservice(accountname, accountkey, host);          blobservice.createcontainerifnotexists(item.containername, {              publicaccesslevel: 'blob'          }, function(error) {                  if (!error) {                        // provide write access container next 5 mins.                             var sharedaccesspolicy = {                          accesspolicy: {                              permissions: azure.constants.blobconstants.sharedaccesspermissions.write,                              expiry: new date(new date().gettime() + 5 * 60 * 1000)                          }                      };                        // generate upload url sas new image.                      var sasqueryurl =                          blobservice.generatesharedaccesssignature(item.containername,                              item.resourcename, sharedaccesspolicy);                        // set query string.                      item.sasquerystring = qs.stringify(sasqueryurl.querystring);                        // set full path on new new item,                      // used data binding on client.                      item.imageuri = sasqueryurl.baseurl + sasqueryurl.path;                    } else {                      console.error(error);                  }                  request.execute({         success: function() {             request.respond();             sendnotifications();         }     });              });      } else {          request.execute({         success: function() {             request.respond();             sendnotifications();         }     });     } } function sendnotifications() {         var registrationstable = tables.gettable('channel');         registrationstable.read({             success: function(registrations) {                 registrations.foreach(function(registration) {                     push.wns.sendtoasttext04(registration.handle, {                         text1: item.text                     }, {                         success: function(pushresponse) {                             console.log("sent push:", pushresponse);                         }                     });                 });             }         });     } 

the error error in callback table 'channel'. referenceerror: item not defined @ :122:32 [external code] @ object.registrationstable.read.success (:120:31) [external code]

can please let me know how resolve this?

the problem in block of code: success: function(registrations) { }.

i remove call push.wns , log console try debug. check 'item' exists. if you're using online node editor show if have unmatched brackets.

i'm assuming have configured wns use in azure portal?