After your suggestion I have refocused this experimental development using the 'Get URL Text' actor as you have suggested. It has worked handsomely to bring online data into the Isadora patch environment. I have made a patch with detailed annotations about the process and offer it here as a departure point for those artists who are seeking to establish using dynamic data from a URL source in their projects.
This Isadora patch accesses live data from an online source. It uses it in a way that represents the data graphically and to locate elements in x and y space on the stage. The patch works by accessing an Open Data Source using a live internet URL. The data set includes names of Countries, their Capital City and Latitude and Longitude coordinates and other information. After scaling with Limit-Scale Value actors, the longitude and latitude data locates each city on a world map. A list of iso2 codes (2 letter country codes) has been saved as a text file and read into the patch through a Data Array actor. This Isadora patch demonstrates the Get URL Text, Text Parser, Text Formatter and Data Array actors.
This is a share. A patch that parses Global Positioning System Fix Data (GPS) coming into Isadora via serial port (bluetooth device). For anyone who wants to do urban adventure or gps drawing. OK it was popular quite a few years ago now - but everything has its revival like tie-dye t-shirts. It is well documented and shows how incoming serial data has been arranged through the 'text parser' to get usable flows of information.