If you upload a file, the response json will include a 'createdBy' property, which includes your security profile's name, followed by a seemingly random string. I believe this is the AppID you're looking for.
I am having the same problem. A method requires the owner (createdBy), but I have no way of retrieving that. This field is needed when I set up the properties so that I can edit. Did you find a solution for this? Is the only way to actually create a folder first, then delete it?
Hey guys, You should already have access to your friendly name. When you whitelisted your security profile to use with Cloud Drive, it should have come with your app id. Actually, you shouldn't even need to query to find it. Hope this helps, Jamie