Hi! A simple approach would be to send your data in a http request, like this:
ofHttpResponse resp = ofLoadURL("http://www.yourserver.com/myapp.php?value1=456&value2=123");
cout << resp.data << endl;
There you would be sending two GET values to a PHP script. You would have to write a PHP script that receives
value2 and stores them in a text file or to a database. Security can be an issue (if someone starts calling your script sending random data), so you should validate the input and ideally use https instead of http.
The data stored in the server could be later accessed using a web browser, or from another OF application.
You could also search online for "iot online database api" to find a free database that don't require any server side programming, but I haven't tried any of those. Maybe someone can recommend one?