Extracting Price from Website: Need Assistance

I’m currently exploring ways to extract a specific price from a website for my smart home setup. The price in question is the ‘Einspeisetarif’ (feed-in tariff) for the aWattar Sunny tariff, which is listed as ‘8,291 Cent/kWh’ on their site. I initially thought of using a HTTP GET request to fetch the data and then process it with some string manipulation in Homey Script, preferably using regex. However, I’ve encountered an issue where string functions don’t seem to be accessible in Homey Script. Am I missing something here? Are there alternative methods or tools I could utilize to achieve this? Any insights or suggestions would be greatly appreciated!