Documentation for nowAttachmentHandler

[xiaix]

One thing that I find extremely frustrating with Helsinki release on upward is the severe lack of adequate documentation in the new docs.servicenow.com area.   The old Wiki is far superior (granted it much more mature), but even then there's a lot of "secret / hidden" functionality that's not documented.

*rant over*

I'm looking for documentation on the nowAttachmentHandler method, used in widget client scripts and used as a parameter in the main function().

I know of the following, however only vaguely:

ng-click="attachmentHandler.viewAttachment($event, attachment)"
ng-click="attachmentHandler.downloadAttachment(attachment)"
ng-blur="attachmentHandler.updateAttachment($event, attachment)"
ng-click="attachmentHandler.editAttachment($event, attachment)"
ng-file-select="attachmentHandler.onFileSelect($files)"
ng-click="attachmentHandler.openSelector($event)"

But where's the in-depth documentation explaining all the methods/properties/functions for nowAttachmentHandler ??

If it's posted somewhere and I just haven't found it yet, I'll eat crow.

[leboute]

How the "draft" real file transfer occurs? We are getting the issue that we need to allow guest users to attach files as part of a simple public service in an anonymous portal, but it fails on file transfer. Same page and service works fine in non-anonymous portals. Is there is some explicitly block for attachment uploads for the guest user?