GET and POST scores to an API

I'm new to Construct and I'm trying to help a student of mine. He wants to add a global leaderboard feature to the "Ghost Shooter" demo game. I've built him a REST API that will respond to a GET on our endpoint /scores with the current high score. A POST request to the same endpoint will compare a submitted score to the current and update if needed.

... But I have no idea how to retrieve the variable at the start of the game and how to post it at the end. I've read the AJAX article but it has no examples. Creating the AJAX object in the game sheet is awfully confusing. Can anyone show me what this would look like?

Take a look at this:

From:

construct.net/en/tutorials/creating-own-leaderboard-1032/highscores-construct-4

Aw, gross! I have to use PHP?! Oh, I mean, thanks for your reply! I'll give it a try.

You definitely don't need to use PHP, that was just used on this particular server side implementation. Whatever you already are using to implement the server REST API should be fine. This example was just to show the AJAX calls from the client side.

Good luck!

I made a little bit of progress but I'm now seeing a strange error: p._GetNode is not a function

Here's how I got there.

I'll keep picking at it, but there's where I'm stuck for now.