Sharepoint - get the attachement files from REST API

Not enough Reputation to add a comment, but DacrioS has cracked it. I have an on-premises install of Sharepoint 2013 and could not get attachments to show up when using _api/web REST interface. Until I read this comment: "Try adding Attachments to the select."

Let me be clear:

This Does Not Work _api/web/lists/getbytitle('MYLIST')/items?$filter=Id%20eq%202451&$select=AttachmentFiles&$expand=AttachmentFiles

This DOES WORK _api/web/lists/getbytitle('MYLIST')/items?$filter=Id%20eq%202451&$select=Attachments,AttachmentFiles&$expand=AttachmentFiles

Notice the ONLY difference between the two queries is the inclusion of Attachments in the $select statement. Add that and booya - I get Attachment files.

You need to $select and $expand the AttachmentFiles property for your list items if you want to select many items from the list.

_api/lists/getByTitle('MyList')/items?$select=AttachmentFiles,Title&$expand=AttachmentFiles

Then you can get attachment info (if it exists) in the AttachmentFiles property of your list item which will be an array of AttachmentFile objects.

I suggest you just check out the return values in your dev tools to inspect the structure with something like:

$.getJSON("/_api/lists/getByTitle('MyList')/items?$select=AttachmentFiles,Title&$expand=AttachmentFiles", 
    function(data) { console.log(data) })

But you can do something like retrieve the file's URL with:

data.value[0].AttachmentFiles[0].ServerRelativeUrl

If your list item doesn't have any attachments, the AttachmentFiles will be an empty array.

I can't seem to get the $filter operator to work with the Attachments property to filter the results for only those items with attachments -- maybe someone else out there has some experience getting that up and running and would like to add it here =)

You can get attachments using

var url = url + "/_api/web/lists/getbytitle('ListTitle')/items(1)/AttachmentFiles";

$.ajax({
    url: url,
    accepts: {
        json: "application/json;odata=verbose"
    },
    method: "GET",
    success: onQuerySuccess,
    error: onQueryError
});

function onQuerySuccess(data) {
    if (data) {
        $.each(data.d.results, function () {
            // do something
            this.ServerRelativeUrl;
        });
    }
}