Market Cap Treemap | avergnaud.github.io

And 24h performance for 10 biggest cryptocurrencies. This project uses the CoinMarketCap API.

Market Capitalization

The browser first reaches a SpringBoot backend server. This backend calls CoinMarketCap and caches the data (for 30 minutes). The sources for the backend server and for the d3.JS tree map are available on Github. The first loading is slow because of:

Heroku Free plan making the backend “sleep after 30 mins of inactivity”
The call to coinmarketcap API, once the 30 minutes cache has expired

For each rectangle, the area is proportional to the currency’s market capitalization. The % figure is the Kraken exchange rate performance for the last 24 hours (EUR market). Colored red when negative, and green when positive.