Read-only access to GData API with OAuth

I'm using the Google Documents List API to get a list of documents and export their contents. I'm authenticating wi开发者_如何学运维th OAuth (3-legged). It's been very straightforward, with one exception. I'm not finding a way to request read-only access to documents. I'm using a scope of https://docs.google.com/feeds/ when fetching the oauth request token.

Is there a way to request read-only access to Doc List API? Thanks.

You can try

https://docs.google.com/feeds/#readonly

At least thats the schema used for 2-legged OAuth for Marketplace applications

http://www.google.com/support/a/bin/answer.py?hl=en&answer=162106

I don't know if it will work in your case.