Is it possible to upload files to a cloud storage folder for which I have only the shared link with edit permissions? I want to do this from my application, from code, so I'm interested in an API. I've looked into SkyDrive, GoogleDrive and DropBox APIs but I can't find a solution for this scenario in the API references.
It's fine if I have to sign in through the API with a user account to be able to upload the files to the shared link but I need to allow any user that has the link to upload files to that location.
Have I missed anything in the above mentioned APIs or are there any other cloud storage services which supply a solution for my needs?
Yes it is possible.
These are the steps I just took to verify.
The result is that User-B has created a file in the folder 'shared folder'