I don’t believe you’re allowed to repost someone else’s thread. I think you should’ve probably just posted in the original thread asking if the user found a solution.
Aside from that, this question has so many resources behind it. I don’t really want to be the one to break the news to you but you really need to search your topic better.
In case you didn’t read the first part, here’s the gist:
Use HTTPService to send HTTP requests to external servers. To get data from an external source to the game, use a get request. (You will have to have a loop constantly getting a webpage or something if you want to get an updated stream of data). To send data, use a POST or PUT request.