Get final grades without User ID

Hi,

I would like to send all final grades of a course from moodle to a HR portal. (we use moodle 2.9, 4000 users, approx. 30 courses)

In the API documentation there are some different functions, but it seems every function needs the user ID separately to work. That would lead to numerous API calls (4000 user x 30 courses x ...).

My question: Is there a way to get all final grades from a course without providing individual user IDs?

I'm thankful for every tip!

Best regards,
Dietmar