I'm implementing a LTI provider service for our moodle 2.2 instance. I have the oauth interchange working from moodle to the tool, but when attempting to post a grade back to moodle, I'm getting a 404 from CURL. I can access the php in question and it gives me the error "Exception - Consumer key is missing".
I suspect I have a configuration issue that I'm not aware of yet, as I'm just starting to work with moodle. Any help appreciated.