Javascript to get GUID from SharePoint

Question

I am newbie to SharePoint and I am uploading a file to the server using javascript. Now the task is to get the GUID of that file and display it ({alert(guid); is fine).

I don't even know where to start. Any help would be really appreciated.

Thanks a lot

I can get the url of the file but I need to display uniqueID/GUID of that file(Item) into RTE.

Answer 1

I'm not so familiar with java client object model for SharePoint, but I have worked with this ajax java script library (SPServices), this is quite useful, works with SharePoint web services and based on jQuery. It allows to query items and so on by calling functions like this:

    $().SPServices({
    operation: "GetListItems",
    async: false,
    listName: "Announcements",
    CAMLViewFields: "<ViewFields><FieldRef Name='Title' /></ViewFields>",
    completefunc: function (xData, Status) {
      $(xData.responseXML).find("[nodeName='z:row']").each(function() {
        var liHtml = "<li>" + $(this).attr("ows_Title") + "</li>";
        $("#tasksUL").append(liHtml);
      });
    }
  });

Answer 2

Here is an example using CSOM in JavaScript.

    var context = new SP.ClientContext.get_current();
    var list = "Name of List";
    var view = "Name of View"; //You can compose a CAML or use a view.
        list = context.get_web().get_lists().getByTitle(listTitle); 
        view = list.get_views().getByTitle(viewTitle); 
        context.load(view); 

    context.executeQueryAsync( 
        function(sender, args) {getLinkListItem("<View><Query>" + view.get_viewQuery() + "</Query></View>")}, 
        function(sender, args) {alert("error: " + args.get_message());});}
    }, 'sp.js')});

 function getLinkListItem(camlQuery){
      var context = SP.ClientContext.get_current();
      var approvalList = context.get_web().get_lists().getByTitle(listTitle);

      var query = new SP.CamlQuery(); 
      query.set_viewXml(camlQuery); 

      listItems = approvalList.getItems(query);
      context.load(listItems);

      context.executeQueryAsync(ReadListItemSucceeded, ReadListItemFailed);
}
//Execute this when you receive the data back from SharePoint.
function ReadListItemSucceeded(sender, args) {
  var enumerator = listItems.getEnumerator();
  while (enumerator.moveNext()) {
    var listItem = enumerator.get_current();
    alert('The ID for ' +listItem.Title + ' is ' + listItem.id);
  }
}
//Execute this function if things go wrong.
function ReadListItemFailed(sender, args) {
  alert('Request failed.');
}

You should also take a look at the MSDN library entry for the JavaScript/ECMA CSOM.

Here is an example using a CAML query rather than a SharePoint view.