by Justin Sung.
As the title suggests, I would like for the external module I developed to send pass back grade data to Moodle. I already have single sign-on working, so I know I set up the 2-leg Oauth correctly.
I pass grade information to Moodle following IMS Global's LTI specification (part 6.1), which says to use the replaceResult XML. However, I don't know what values to use for sourceid and messageidentifier. Also, can I send the XML without computing an Oauth body hash and signature, or must I have both?