I have a list of node_slug values of Khan Academy articles like:
a/square-roots-of-perfect-squares-art
a/number-of-solutions-to-a-system-of-equations
a/distance-formula
Unfortunately, as far as I know, there is no way from this piece of data to get the API JSON. For that, you need an id like "xe504dd90". This is different from exercises
and videos
, which both have a dedicated API.
What it's possible is to get the page from the main website, which has all the data I need and much more, but it's more difficult to parse. What I need are the main metadata of the page (title, author, image_url, etc.).