How to import data dynamically in a website ?

Question

Actually i want to make a website showing covid cases with live updates.

Answer 1

You do not import it in the web site, but show, visualize, represent, extract, use the already existing data - all these with the help of the API and databases on which you connect.
You may also write your own algorithms to scavenge reliable sources on the internet and collect data into your own database, if you know artificial intelligence, machine learning, cloud, databases, web frameworks, web servers. 🙂