So essentially you want to build a *live* chart that pulls data from some online data-store (which changes often).
To do that you can do one of three things:
- See if they have an API that you can use — if so, you should be able to use that. If not, continue reading…
- Build a web scraper on your own. There are tutorials out there that would help you do so in the language of your choice.
- Use a software service like Import.io | Web Data Platform & Free Web Scraping Tool or Web Scraper — or you could find something else. I have used Import[dot]io and was able to build an API using their service — which i used a data-store for my “charts”
Side note: just make sure you are not violating any terms by scraping the website.