this is how to use https://gist.github.com/MarianoGnu/19dc48a94715ae2cb5a36d78aa6d2d26

example.gd

extends Node

func _ready():
	var url = "http://zerosploit-api.herokuapp.com/servers.json"
	var response = yield($HTTPRequest.request_url(url), "completed")
	# execution will pause until request finishes
	# response is now a dictionary or array, depending on the API result
	pass