I currently have continuous integration that updates an extension on Chrome Web Store and Mozilla Add On Market, however I am now trying to make a script that uploads to the Microsoft Partner Centre. Does anyone know how to upload via API to this Microsoft Partner Centre? (Specifically for Browser Extensions).
So I found it particularly hard to write a script that would do this, so hard that I had to use Selenium due to all the JS loaded on the Microsoft Partner Centre sites. Never the less, I have written a script that will login, upload a new version and publish it (note that it won't work unless you've created and uploaded the first version of your extension yourself).
https://gist.github.com/8W9aG/d135f2780e2dc27baa682bae3a2a1cc7