Integrating GAA Fixtures on Wordpress Site

[Mole]

I manage the club website for my local GAA club. Recently the GAA have changed how their fixture database can be used on club websites. They provide a json link. How can I go about integrating this on my Wordpress site?

Here is the info they supply.
I have already done the whitelisting of IP:

 

[mneylon]

I'd recommend asking them for sample output.
They've given you examples of how to generate a query but I don't see anything about the returned responses