A simple web page that retrieves real-time electricity stock market data. The idea of the page is that you can check what information the Shelly relay uses.
The application uses the same API interface as Shelly.
You need to install the CORS plugin in your browser to see the data.
(it's a server setting that I can't control.)
HTML, CSS and Javascript.
Go to https://rutjake.github.io/halvat/
Install CORS plugin if you want to.