Dear Madhu, thank you for the reference. The REpresentation State Transfer (REST) to access Moodle data and the moodle-rest-client available in Github (I found it is in node.js) are very likely do what I am looking for. As soon as I find some time I will do a test and post more information here.
Gradebook
3rd party software, or API, to get grades from Moodle?
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