I am using javascript sharepoint 2013.

I want to know how to check if a file exists in a folder, before i upload.

Here's my code

// Folder Name - folder into which I need to upload
   var FolderName = "Images";
// Root Folder Name
   var rootfolder = '/Image Library/' + FolderName;
// Get the context and Web
   var clientContext = new SP.ClientContext.get_current();
   var oWebsite = clientContext.get_web();
// These are the files which I need to upload into the "Images" folder of the document library
    var files = document.getElementById(UploadFiles).files;

Now I need to check if the file already exists in the "Images" folder. If it exists , i need to throw a message , "Äre you sure to overwrite?"

I am pretty new to Sharepoint, please suggest if I need to write a CAML query or some other way to achieve this.

Please suggest. Thanks in advance

3 Answers 3


You could consider the following approaches to determine whether file exists or not.

Query based

You could construct CAML query to find list item by its Url as demonstrated below:

var listTitle = 'Documents';
var fileUrl  = '/project/shared documents/orders/order.docx';

var ctx = SP.ClientContext.get_current();
var list = ctx.get_web().get_lists().getByTitle(listTitle);
var qry = new SP.CamlQuery();
qry.set_viewXml('<View Scope="RecursiveAll"><Query><Where><Eq><FieldRef Name="FileRef"/><Value Type="Url">' + fileUrl + '</Value></Eq></Where></Query></View>');
var items = list.getItems(qry);
ctx.executeQueryAsync(function() {
  var fileFound = (items.get_count() > 0);
function(sender, args) {

SP.Web.getFileByServerRelativeUrl Method

Use SP.Web.getFileByServerRelativeUrl Method to return the file object located at the specified server-relative URL.

If file does not exists the exception System.IO.FileNotFoundException will be thrown:

function getFileExists(fileUrl,complete,error)
   var ctx = SP.ClientContext.get_current();
   var file = ctx.get_web().getFileByServerRelativeUrl(fileUrl);
   ctx.executeQueryAsync(function() {
   function(sender, args) {
     if (args.get_errorTypeName() === "System.IO.FileNotFoundException") {
     else {


getFileExists('/project/shared documents/orders/order.docx',

Just try getting the file and use the success/error callback in executeQueryAsync...

var myCtx = SP.ClientContext.get_current();
var myFile = myCtx.get_web().getFileByServerRelativeUrl(/<site>/<lib>/<filename w/ extension>);

myCtx.executeQueryAsync(function() {
    // success handler, if you made it here, the file exists
}, function(sender, args) {
    // error handler, if you made it here something else went wrong...
    if (args.get_message() == "File Not Found.") {
        //if you get here, the file didn't exist

Here are some option:

Uncheck overwrite by default http://planet-sharepoint.blogspot.co.uk/2013/10/sharepoint-2010-set-overwrite-existing.html

jQuery option http://vegardstromsoy.blogspot.se/2011/05/jquery-to-override-sharepoint-ootb.html

  • I just want to check if a specific file already exists. Using Javascript code. Please suggest. Thanks again! Commented Aug 1, 2014 at 13:44

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