How to get course's URL via API

Please go to the api.365.system and authenticate yourself with API key by pressing Authorize button.

The API key should be inserted in the Login and Password fields. To receive the API key please read this guide. 

Then please select GET query Returns the list of Courses
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Then please enter SharepointWeb title in the $expand query and press Execute button

Then you will be able to see ​the URL in the Response body.