Build a PWA using svelte (preferred) or reactjs

The project is a cryptocurrency price webapp and would need to fetch prices from an api and display the symbol, price and 24H price change. The api from which the prices should be fetched: [login to view URL] Frequency: Every 3 seconds Values to be fetched and displayed: symbol, lastPrice, prevPrice24H Calculate the percentage Change = (lastPrice - prevPrice24H)/prevPrice24H *100 If %change is positive, display the %change in green, if negative, display in Red. This is going to be a series of changes and I am looking to get into a partnership with a developer that has worked with charts, firebase and websockets as well. So, please let me know if you have worked with those as well.