Thanks! Sorry new to all of this...kind of just hacking along. If I may ask 1 more newbie question:
I got the REST POST to work(I guess)
$.ajax({
url:"http://localhost:5488/templates/HJH11D83ce",
contentType: 'application/json',
success: function(response) {console.log(response); }
});
So how do I show the pdf response?

Ok so in the Orders script it says "the report parameter country can be send from the client API request". How do i do this? I tried passing a query string in URL "http://localhost:5488/templates/HJH11D83ce?country='Italy'", but just ignored and showed the "default" France. Thanks for the assist.