scientist1642 / crafty

General

Video demo

The app is scaffolded using create Create React Native App and can be run by the command npx react-native run-ios/android

Notes

There are some things to spend more time on:

• Proper testing and some edge cases
• cleanup: remove some unused imports (maybe use a plugin)
• It seems that messari has a bug and occesionally can return the same asset in different pages.
• Better error handling and custom error messages: currently almost all error messages are logged directly for debugging purposes.
• Asset price history comes from messari api's Binance market, it's $currency-USDT pair since I couldn't find $currency-usd pairs at the time and did't spend more time on it.

Optimizations

Optimizations haven't been applied yet. We can if we want though:

• Use React.memo and usecallback
• Replace flatlist with Bidirectional infinite scroll
• Use a hashset instead of a list to keep favorite asset ids

Used Libraries

Since the scope of the app is rather limited, we could get away without using some of those libraries listed. But they are quite useful in larger apps, and it was worth to refresh the installation process.

• react-native-vector-icons
• react-navigation
• react-native-charts-wrapper tried coinjar/react-native-wagmi-charts and considered victory but charts-wrapper seems to be faster and functional for our purposes.

Screenshots

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