Help with Walmart Affiliate API setup?

Hi all! Does anyone know how to get the Walmart Affiliate API working in Bubble? I don’t know how to code, and the only reference I can find on how to generate the authorization token (not sure if I’m using the right term there) is Walmart’s own reference to Javascript on the “additional headers” section:

Also, I’ve generated my key pair and received my consumer ID, but I’m not sure what goes into the WM_SEC.KEY_VERSION field.

It seems like I need to do a POST to some endpoint to get my token? But i’m not sure how to do that, or to pipe that into a subsequent GET call for the actual data I want.

Specifically, I’m trying to do an API lookup by item ID to get its price. I’d like to store that price in my database.

Thank you all!